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- 1. What exclusive frequency privileges in the 80-meter band are
- authorized to Amateur Extra control operators?
- A. 3525-3775 kHz
- B. 3500-3525 kHz
- C. 3700-3750 kHz
- D. 3500-3550 kHz
- 2. What exclusive frequency privileges in the 75-meter band are
- authorized to Amateur Extra control operators?
- A. 3750-3775 kHz
- B. 3800-3850 kHz
- C. 3775-3800 kHz
- D. 3800-3825 kHz
- 3. What exclusive frequency privileges in the 40-meter band are
- authorized to Amateur Extra control operators?
- A. 7000-7025 kHz
- B. 7000-7050 kHz
- C. 7025-7050 kHz
- D. 7100-7150 kHz
- 4. What exclusive frequency privileges in the 20-meter band are
- authorized to Amateur Extra control operators?
- A. 14.100-14.175 MHz and 14.150-14.175 MHz
- B. 14.000-14.125 MHz and 14.250-14.300 MHz
- C. 14.025-14.050 MHz and 14.100-14.150 MHz
- D. 14.000-14.025 MHz and 14.150-14.175 MHz
- 5. What exclusive frequency privileges in the 15-meter band are
- authorized to Amateur Extra control operators?
- A. 21.000-21.200 MHz and 21.250-21.270 MHz
- B. 21.050-21.100 MHz and 21.150-21.175 MHz
- C. 21.000-21.025 MHz and 21.200-21.225 MHz
- D. 21.000-21.025 MHz and 21.250-21.275 MHz
- 6. What is a spurious emission or radiation?
- A. As defined by Section 97.73, any emission or
- radiation falling outside the amateur band being used
- B. As defined by Section 97.73, any emission or
- radiation other than the fundamental that exceeds 25 microwatts,
- regardless of frequency
- C. As defined by Section 97.73, any emission or
- radiation other than the fundamental that exceeds 10 microwatts,
- regardless of frequency
- D. As defined by Section 97.73, any emission or
- radiation falling outside the amateur band that exceeds 25
- microwatts
- 7. How much must the mean power of any spurious emission or
- radiation from an amateur transmitter be attenuated when the
- carrier frequency is below 30 MHz and the mean transmitted power
- is equal to or greater than 5 watts?
- A. At least 30 dB below the mean power of the
- fundamental, and less than 25 mW
- B. At least 40 dB below the mean power of the
- fundamental, and less than 50 mW
- C. At least 30 dB below the mean power of the
- fundamental, and less than 50 mW
- D. At least 40 dB below the mean power of the
- fundamental, and less than 25 mW
- 8. How much must the mean power of any spurious emission or
- radiation from an amateur transmitter be attenuated when the
- carrier frequency is above 30 MHz but below 225 MHz and the mean
- transmitted power is greater than 25 watts?
- A. At least 30 dB below mean power of the fundamental
- B. At least 40 dB below mean power of the fundamental
- C. At least 50 dB below mean power of the fundamental
- D. At least 60 dB below mean power of the fundamental
- 9. What can the FCC require the licensee to do if any spurious
- radiation from an amateur station causes harmful interference to
- the reception of another radio station?
- A. Reduce the spurious emissions to 0 dB below the
- fundamental
- B. Observe quiet hours and pay a fine
- C. Forfeit the station license and pay a fine
- D. Eliminate or reduce the interference
- 10. What are the points of communication for an amateur station?
- A. Other amateur stations only
- B. Other amateur stations and other stations authorized
- by the FCC to communicate with amateurs
- C. Other amateur stations and stations in the Personal
- Radio Service
- D. Other amateur stations and stations in the Aviation
- or Private Land Mobile Radio Services
- 11. With which stations may an amateur station communicate?
- A. Amateur, RACES and FCC Monitoring stations
- B. Amateur stations and any other station authorized by
- the FCC to communicate with amateur stations
- C. Amateur stations only
- D. Amateur stations and US Government stations
- 12. Under what circumstances, if any, may an amateur station
- communicate with a non-amateur station?
- A. Only during emergencies and when the Commission has
- authorized the non-amateur station to communicate with amateur
- stations
- B. Under no circumstances
- C. Only when the state governor has authorized that
- station to communicate with amateurs
- D. Only during Public Service events in connection with
- REACT groups
- 13. What rules must US citizens comply with when operating an
- Amateur Radio station in international waters?
- A. The FCC rules contained in Part 15
- B. The FCC rules contained in Part 97
- C. The IARU rules governing international operation
- D. There are no rules governing Amateur Radio operation
- in international waters
- 14. An Amateur Radio station is installed on board a ship or
- aircraft in a compartment separate from the main radio
- installation. What other conditions must the amateur operator
- comply with?
- A. The Amateur Radio operation must be approved by the
- master of the ship of the captain of the aircraft
- B. There must be an approved antenna switch included, so
- the amateur can use the ship or aircraft antennas, transmitting
- only when the main radios are not in use
- C. The amateur station must have a power supply that is
- completely independent of the ship or aircraft power
- D. The Amateur Radio operator must have an FCC Marine or
- Aircraft endorsement on his or her Amateur license
- 15. What types of licenses or permits are required before an
- amateur operator may transmit from a vessel registered in the US?
- A. No amateur license is required outside of
- international waters
- B. Any Amateur Radio license or Reciprocal Operating
- Permit issued by the FCC
- C. Only amateur licensees General class or above may
- transmit on a vessel registered in the US
- D. Only an Amateur Extra Class licensee may operate
- aboard a vessel registered in the US
- 16. What is an FCC Reciprocal Operating Permit?
- A. An FCC authorization to a holder of an amateur
- license issued by certain foreign governments to operate an
- Amateur Radio station in the United States and its possessions
- B. An FCC permit to allow a United States licensed
- amateur to operate his station in a foreign nation, except Canada
- C. An FCC permit allowing a foreign licensed amateur to
- handle traffic between the United States and the amateur's own
- nation, subject to FCC rules on traffic handling and third-party
- messages
- D. An FCC permit to a commercial telecommunications
- company allowing that company to pay amateurs to handle traffic
- during emergencies
- 17. Who is eligible for an FCC Reciprocal Operating Permit?
- A. Anyone holding a valid Amateur Radio license issued
- by a foreign government
- B. Anyone holding a valid Amateur Radio license issued
- by a foreign government with which the United States has a
- reciprocal operating agreement, providing that person is not a
- United States citizen
- C. Anyone who holds a valid Amateur Radio license issued
- by a foreign government with which the United States has a
- reciprocal operating agreement
- D. Anyone other than a United States citizen who holds
- a valid Amateur Radio or shortwave listener's license issued by a
- foreign government
- 18. Under what circumstances, if any, is a US citizen holding a
- foreign Amateur Radio license eligible to obtain an FCC Reciprocal
- Operating Permit?
- A. A US Citizen is not eligible to obtain a Reciprocal
- Operating Permit for use in the United States
- B. Only if the applicant brings his or her equipment
- from the foreign country
- C. Only if that person is unable to qualify for a United
- States amateur license
- D. If the applicant does not hold an FCC license as of
- the date of application, but had held a US amateur license other
- than Novice class less than 10 years before the date of
- application
- 19. What are the operator frequency privileges authorized by an
- FCC Reciprocal Operating Permit?
- A. Those authorized to a holder of the equivalent United
- States amateur license, unless the FCC specifies otherwise by
- endorsement on the permit
- B. Those that the holder of the Reciprocal Operating
- Permit would have if he were in his own country
- C. Only those frequencies permitted to United States
- amateurs that the holder of the Reciprocal Operating Permit would
- have in his own country, unless the FCC specifies otherwise
- D. Only those frequencies approved by the International
- Amateur Radio Union, unless the FCC specifies otherwise
- 20. How does an alien operator identify an Amateur Radio station
- when operating under an FCC Reciprocal Operating Permit?
- A. By using only his or her own call
- B. By using his or her own call, followed by the city
- and state in the United States or possessions closest to his or her
- present location
- C. By using his or her own call, followed by the
- letter(s) and number indicating the United States call-letter
- district of his or her location at the time of the contact, with
- the city and state nearest the location specified once during each
- contact
- D. By using his or her own call sign, followed by the
- serial number of the Reciprocal Operating Permit and the call-
- letter district number of his or her present location
- 21. What is RACES?
- A. An Amateur Radio network for providing emergency
- communications during long-distance athletic contests
- B. The Radio Amateur Civil Emergency Service
- C. The Radio Amateur Corps for Engineering Services
- D. An Amateur Radio network providing emergency
- communications for transoceanic boat or aircraft races
- 22. What is the purpose of RACES?
- A. To provide civil-defense communications during
- emergencies
- B. To provide emergency communications for transoceanic
- boat or aircraft races
- C. To provide routine and emergency communications for
- long-distance athletic events
- D. To provide routine and emergency communications for
- large-scale international events, such as the Olympic games
- 23. With what other organization must an Amateur Radio station
- be registered before RACES registration is permitted?
- A. The Amateur Radio Emergency Service
- B. The US Department of Defense
- C. A Civil Defense organization
- D. The Amateur Auxiliary to the FCC Field Operations
- Bureau
- 24. Who may be the control operator of a RACES station?
- A. Anyone who holds a valid FCC amateur operator's
- license other than Novice
- B. Only an Amateur Extra Class licensee
- C. Anyone who holds an FCC Amateur Radio license other
- than Novice and is certified by a Civil Defense organization
- D. Anyone who holds an FCC Amateur Radio license and is
- certified by a Civil Defense organization
- 25. What additional operator privileges are granted to an
- Amateur Extra Class operator registered with RACES?
- A. None
- B. Permission to operate CW on 5167.5 kHz
- C. Permission to operate an unattended HF packet radio
- station
- D. Permission to operate on the 237-MHz Civil Defense
- band
- 26. What frequencies are normally available for RACES operation?
- A. Only those frequencies authorized by the ARRL Section
- Emergency Coordinator
- B. Only those frequencies listed in Section 97.8
- C. Only transmitting frequencies in the top 25 kHz of
- each Amateur band
- D. All frequencies available to the Amateur Radio
- Service
- 27. What type of emergency can cause a limitation on the
- frequencies available for RACES operation?
- A. An emergency in which the President invokes the War
- Emergency Powers under the provisions of the Communications Act of
- 1934
- B. RACES operations must be confined to a single
- frequency band if the emergency is contained within a single state
- C. RACES operations must be conducted on a VHF band if
- the emergency is confined to an area 25 miles or less in radius
- D. The Red Cross may limit available frequencies if the
- emergency involves no immediate danger of loss of life
- 28. Which amateur stations may be operated in RACES?
- A. Only Extra Class Amateur Radio stations
- B. Any licensed Amateur Radio station except a station
- licensed to a Novice
- C. Any licensed Amateur Radio station certified by the
- responsible Civil Defense organization
- D. Any licensed Amateur Radio station other than a
- station licensed to a Novice, providing the station is certified by
- the responsible Civil Defense organization
- 29. What are the points of communications for amateur stations
- operated in RACES and certified by the responsible Civil Defense
- organization as registered with that organization?
- A. Any RACES, Civil Defense, or Disaster Communications
- Service station
- B. Any RACES stations and any FCC licensed amateur
- stations except stations licensed to Novices
- C. Any FCC licensed amateur station or a station in the
- Disaster Communications Service
- D. Any FCC licensed amateur station except stations
- licensed to Novices
- 30. What are permissible communications in RACES?
- A. Any communications concerning local traffic nets
- B. Any communications concerning the Amateur Radio
- Emergency Service
- C. Any communications concerning national defense and
- security or immediate safety of people and property that are
- authorized by the area Civil Defense organization
- D. Any communications concerning national defense or
- security or immediate safety of people or property but only when a
- state of emergency has been declared by the President, the
- governor, or other authorized official, and then only so long as
- the state of emergency endures
- 31. What are the purposes of the Amateur Satellite Service?
- A. It is a radionavigation service using stations on
- earth satellites for the same purposes as those of the Amateur
- Radio Service
- B. It is a radiocommunication service using stations on
- earth satellites for weather information
- C. It is a radiocommunication service using stations on
- earth satellites for the same purpose as those of the Amateur Radio
- Service
- D. It is a radiolocation service using stations on earth
- satellites for Amateur Radio operators engaged in satellite radar
- experimentation
- 32. What are some frequencies available for space operation?
- A. 7.0-7.1, 14.00-14.25, 21.00-21.45, 24.890-24.990,
- 28.00-29.70, 144-146, 435-438 and 24,000-24,050 MHz
- B. 7.0-7.3, 21.00-21.45, 28.00-29.70, 144-146, 432-438
- and 24,000-24,050 MHz
- C. All frequencies available to the Amateur Radio
- Service, providing license-class, power and emission-type
- restrictions are observed
- D. Only frequencies available to Amateur Extra Class
- licensees
- 33. What is the term used to describe an earth-to-space Amateur
- Radio communication that controls the functions of an amateur
- satellite?
- A. Space operation
- B. Telecommand operation
- C. Earth operation
- D. Control operation
- 34. Which amateur stations are eligible for telecommand
- operation?
- A. Any Amateur Radio licensee except Novice
- B. Amateur Extra Class licensees only
- C. Telecommand operation is not permitted in the amateur
- satellite service
- D. Any Amateur Radio station designated by the space
- station licensee
- 35. What term is used to describe space-to-earth transmissions
- that communicate the results of measurements made by a station in
- space operation?
- A. Data transmission
- B. Frame check sequence
- C. Telemetry
- D. Telecommand operation
- 36. What is the term used to describe Amateur Radio
- communication from a station that is beyond the major portion of
- the earth's atmosphere?
- A. EME
- B. Exospheric operation
- C. Downlink
- D. Space operation
- 37. Which amateur stations are eligible for space operation?
- A. Any licensee except Novice
- B. General, Advanced and Extra Class licensees only
- C. Advanced and Extra Class licensees only
- D. Amateur Extra Class licensees only
- 38. When must the licensee of a station scheduled for space
- operation give the FCC written pre-space notification?
- A. 3 months to 72 hours prior to initiating space
- operation
- B. 6 months to 3 months prior to initiating space
- operation
- C. 12 months to 3 months prior to initiating space
- operation
- D. 27 months to 3 months prior to initiating space
- operation
- 39. When must the licensee of a station in space operation give
- the FCC written in-space notification?
- A. No later than 24 hours following initiation of space
- operation
- B. No later than 72 hours following initiation of space
- operation
- C. No later than 7 days following initiation of space
- operation
- D. No later than 30 days following initiation of space
- operation
- 40. When must the licensee of a station in space operation give
- the FCC written post-space notification?
- A. No later than 48 hours after termination is complete,
- under normal circumstances
- B. No later than 72 hours after termination is complete,
- under normal circumstances
- C. No later than 7 days after termination is complete,
- under normal circumstances
- D. No later than 3 months after termination is complete,
- under normal circumstances
- 41. What term describes earth-to-space-to-earth Amateur Radio
- communication by means of radio signals automatically retransmitted
- by a station in space operation?
- A. Earth operation
- B. ESE
- C. Repeater operation
- D. Auxiliary operation
- 42. Which amateur stations are eligible for earth operation?
- A. Any Amateur Radio station
- B. Amateur Extra Class licensees only
- C. Any licensee except Novice
- D. A special license issued by the FCC is required
- before any Amateur Radio station is placed in earth operation
- 43. What is a Volunteer-Examiner Coordinator?
- A. An organization that is authorized to administer FCC
- Amateur Radio license examinations to candidates for the Novice
- license
- B. An organization that is authorized to administer FCC
- Amateur Radio examinations for any class of license other than
- Novice
- C. An organization that has entered into an agreement
- with the FCC to coordinate the efforts of Volunteer Examiners in
- preparing and administering examinations for Amateur Radio operator
- licenses
- D. An organization that has entered into an agreement
- with the FCC to coordinate efforts of Volunteer Examiners in
- preparing and administering examinations for Amateur Radio operator
- licenses other than Novice
- 44. What are the requirements to be a VEC
- A. Be engaged in the manufacture and/or sale of amateur
- equipment or in the coordination of amateur activities throughout
- at least one call-letter district; and agree to abide by FCC Rules
- concerning administration of Amateur Radio examinations
- B. Be organized at least partially for the purpose of
- furthering Amateur Radio; be at least regional in scope; and agree
- to abide by FCC Rules concerning coordination of Amateur Radio
- examinations
- C. Be organized at least partially for the purpose of
- furthering Amateur Radio; be, at the most, county-wide in scope;
- and agree to abide by FCC Rules concerning administration of
- Amateur Radio examinations
- D. Be engaged in a business related to Amateur Radio;
- and agree to administer Amateur Radio examinations in accordance
- with FCC Rules throughout at least one call-letter district
- 45. What are the functions of a VEC?
- A. Accredit Volunteer Examiners; collect candidates'
- application forms, answer sheets and test results and forward the
- applications to the FCC; maintain pools of questions for Amateur
- Radio examinations; and perform other clerical tasks in accordance
- with FCC Rules
- B. Assemble, print and sell FCC-approved examination
- forms; accredit Volunteer Examiners; collect candidates' answer
- sheets and forward them to the FCC; screen applications for
- completeness and authenticity; and perform other clerical tasks in
- accordance with FCC Rules
- C. Accredit Volunteer Examiners; certify that examiners'
- equipment is type-accepted by the FCC; assemble, print and
- distribute FCC-approved examination forms; and perform other
- clerical tasks in accordance with FCC Rules
- D. Maintain pools of questions for Amateur Radio
- examinations; administer code and theory examinations; score and
- forward the test papers to the FCC so that the appropriate license
- may be issued to each successful candidate
- 46. Where are the questions listed that must be used in written
- examinations?
- A. In the appropriate VEC question pool
- B. In PR Bulletin 1035C
- C. In PL 97-259
- D. In the appropriate FCC Report and Order
- 47. How is an Element 3(A) examination prepared?
- A. By Advanced or Extra Class Volunteer Examiners or
- Volunteer-Examiner Coordinators selecting questions from the
- appropriate VEC question pool
- B. By Volunteer-Examiner Coordinators selecting
- questions from the appropriate FCC bulletin
- C. By Extra Class Volunteer Examiners selecting
- questions from the appropriate FCC bulletin
- D. By the FCC selecting questions from the appropriate
- VEC question pool
- 48. How is an Element 3(B) examination prepared?
- A. By Extra Class Volunteer Examiners or Volunteer-
- Examiner Coordinators selecting questions from the appropriate VEC
- question pool
- B. By Volunteer-Examiner Coordinators selecting
- questions from the appropriate FCC bulletin
- C. By Extra Class Volunteer Examiners selecting
- questions from the appropriate FCC bulletin
- D. By the FCC selecting questions from the appropriate
- VEC question pool
- 49. How is an Element 4(A) examination prepared?
- A. By Extra Class Volunteer Examiners or Volunteer-
- Examiner Coordinators selecting questions from the appropriate VEC
- question pool
- B. By Volunteer-Examiner Coordinators selecting
- questions from the appropriate FCC bulletin
- C. By Extra Class Volunteer Examiners selecting
- questions from the appropriate FCC bulletin
- D. By the FCC selecting questions from the appropriate
- VEC question pool
- 50. How is an Element 4(B) examination prepared?
- A. By Extra Class Volunteer Examiners or Volunteer-
- Examiner Coordinators selecting questions from the appropriate VEC
- question pool
- B. By Volunteer-Examiner Coordinators selecting
- questions from the appropriate FCC bulletin
- C. By Extra Class Volunteer Examiners selecting
- questions from the appropriate FCC bulletin
- D. By the FCC selecting questions from the appropriate
- VEC question pool
- 51. What organization coordinates the dates and times for
- scheduling Amateur Radio examinations?
- A. The FCC
- B. A VEC
- C. The IARU
- D. Local radio clubs
- 52. Under what circumstances, if any, may a VEC refuse to
- accredit a person as a VE on the basis of membership in an Amateur
- Radio organization?
- A. Under no circumstances
- B. Only when the prospective VE is an ARRL member
- C. Only when the prospective VE is not a member of the
- local Amateur Radio club
- D. Only when the club is at least regional in scope
- 53. Under what circumstances, if any, may a VEC refuse to
- accredit a person as a VE on the basis of lack of membership in an
- Amateur Radio organization?
- A. Under no circumstances
- B. Only when the prospective VE is not an ARRL member
- C. Only when the club is at least regional in scope
- D. Only when the prospective VE is a not a member of the
- local Amateur Radio club giving the examinations
- 54. Under what circumstance, if any, may an organization engaged
- in the manufacture of equipment used in connection with Amateur
- Radio transmissions be a VEC?
- A. Under no circumstances
- B. If the organization's amateur-related sales are very
- small
- C. If the organization is manufacturing very specialized
- amateur equipment
- D. Only upon FCC approval that preventive measures have
- been taken to preclude any possible conflict of interest
- 55. Under what circumstances, if any, may a person who is an
- employee of a company that is engaged in the distribution of
- equipment used in connection with Amateur Radio transmissions be a
- VE?
- A. Under no circumstances
- B. Only if the employee's work is not directly related
- to that part of the company involved in the manufacture or
- distribution of amateur equipment
- C. Only if the employee has no financial interest in the
- company
- D. Only if the employee is an Extra Class licensee
- 56. Under what circumstances, if any, may a person who owns a
- significant interest in a company that is engaged in the
- preparation of publications used in preparation for obtaining an
- amateur operator license be a VE?
- A. Under no circumstances
- B. Only if the organization's amateur-related sales are
- very small
- C. Only if the organization is publishing very
- specialized material
- D. Only if the person is an Extra Class licensee
- 57. Under what circumstances, if any, may an organization
- engaged in the distribution of publications used in preparation for
- obtaining an amateur operator license be a VEC?
- A. Under no circumstances
- B. Only if the organization's amateur publishing
- business is very small
- C. Only if the organization is selling the publication
- at cost to examinees
- D. Only upon FCC approval that preventive measures have
- been taken to preclude any possible conflict of interest
- 58. Who may reimburse VEs and VECs for out-of-pocket expenses
- incurred in preparing, processing or administering examinations?
- A. Examinees
- B. FCC
- C. ARRL
- D. FCC and Examiners
- 59. What action must a VEC take against a VE who accepts
- reimbursement and fails to provide the annual expense
- certification?
- A. Suspend the VE's accreditation for 1 year
- B. Disaccredit the VE
- C. Suspend the VE's accreditation and report the
- information to the FCC
- D. Suspend the VE's accreditation for 6 months
- 60. What type of expense records must be maintained by a VE who
- accepts reimbursement?
- A. All out-of-pocket expenses and reimbursements from
- the examinees
- B. All out-of-pocket expenses only
- C. Reimbursements from examiners only
- D. FCC reimbursements only
- 61. For what period of time must a VE maintain records of out-
- of-pocket expenses and reimbursements for each examination session
- for which reimbursement is accepted?
- A. 1 year
- B. 2 years
- C. 3 years
- D. 4 years
- 62. By what date each year must a VE forward to the VEC a
- certification concerning expenses for which reimbursement was
- accepted?
- A. December 15 following the year for which the
- reimbursement was accepted
- B. January 15 following the year for which the
- reimbursement was accepted
- C. April 15 following the year for which the
- reimbursement was accepted
- D. October 15 following the year for which the
- reimbursement was accepted
- 63. For what type of services may a VE be reimbursed for out-of-
- pocket expenses?
- A. Preparing, processing or administering examinations
- above the Novice class
- B. Preparing, processing or administering examinations
- including the Novice class
- C. A VE cannot be reimbursed for out-of-pocket expenses
- D. Only for preparation of examination elements
- 64. What is an accredited Volunteer Examiner?
- A. A General class radio amateur who is accredited by a
- VEC to administer examinations to applicants for Amateur Radio
- licenses
- B. An Amateur Radio operator who is accredited by a VEC
- to administer examinations to applicants for Amateur Radio licenses
- C. An Amateur Radio operator who administers
- examinations to applicants for Amateur Radio licenses for a fee
- D. An FCC staff member who tests volunteers who want to
- administer Amateur Radio examinations
- 65. What is an accredited VE?
- A. A General class radio amateur who is accredited by a
- VEC to administer examinations to applicants for Amateur Radio
- licenses
- B. An Amateur Radio operator who is accredited by a VEC
- to administer examinations to applicants for Amateur Radio licenses
- C. An Amateur Radio operator who administers
- examinations to applicants for Amateur Radio licenses for a fee
- D. An FCC staff member who tests volunteers who want to
- administer Amateur Radio examinations
- 66. What are the requirements for a Volunteer Examiner
- administering an examination for a Technician class operator
- license?
- A. The Volunteer Examiner must be a Novice class
- licensee accredited by a Volunteer-Examiner Coordinator
- B. The Volunteer Examiner must be an Advanced or Extra
- Class licensee accredited by a Volunteer-Examiner Coordinator
- C. The Volunteer Examiner must be an Extra Class
- licensee accredited by a Volunteer-Examiner Coordinator
- D. The Volunteer Examiner must be a General class
- licensee accredited by a Volunteer-Examiner Coordinator
- 67. What are the requirements for a Volunteer Examiner
- administering an examination for a General class operator license?
- A. The examiner must hold an Advanced class license and
- be accredited by a VEC
- B. The examiner must hold an Extra Class license and be
- accredited by a VEC
- C. The examiner must hold a General class license and be
- accredited by a VEC
- D. The examiner must hold an Extra Class license to
- administer the written test element, but an Advanced class examiner
- may administer the CW test element
- 68. What are the requirements for a Volunteer Examiner
- administering an examination for an Advanced class operator
- license?
- A. The examiner must hold an Advanced class license and
- be accredited by a VEC
- B. The examiner must hold an Extra Class license and be
- accredited by a VEC
- C. The examiner must hold a General class license and be
- accredited by a VEC
- D. The examiner must hold an Extra Class license to
- administer the written test element, but an Advanced class examiner
- may administer the CW test element
- 69. What are the requirements for a Volunteer Examiner
- administering an examination for an Amateur Extra Class operator
- license?
- A. The examiner must hold an Advanced class license and
- be accredited by a VEC
- B. The examiner must hold an Extra Class license and be
- accredited by a VEC
- C. The examiner must hold a General class license and be
- accredited by a VEC
- D. The examiner must hold an Extra Class license to
- administer the written test element, but an Advanced class examiner
- may administer the CW test element
- 70. When is VE accreditation necessary?
- A. Always in order to administer a Technician or higher
- class license examination
- B. Always in order to administer a Novice or higher
- class license examination
- C. Sometimes in order to administer an Advanced or
- higher class license examination
- D. VE accreditation is not necessary in order to
- administer a General or higher class license examination
- 71. What is VE accreditation?
- A. The process by which all Advanced and Extra Class
- licensees are automatically given permission to conduct Amateur
- Radio examinations
- B. The process by which the FCC tests volunteers who
- wish to coordinate Amateur Radio license examinations
- C. The process by which the prospective VE requests his
- or her requirements for accreditation
- D. The process by which each VEC makes sure its VEs meet
- FCC requirements to serve as Volunteer Examiners
- 72. What are the requirements for VE accreditation?
- A. Hold an Advanced class license or higher; be at least
- 18 years old; not have any conflict of interest; and never had his
- or her amateur license suspended or revoked
- B. Hold an Advanced class license or higher; be at least
- 16 years old; and not have any conflict of interest
- C. Hold an Extra Class license or higher; be at least 18
- years old; and be a member of ARRL
- D. There are no requirements for accreditation, other
- than holding a General or higher class license
- 73. The services of which persons seeking to be VEs will not be
- accepted by the FCC?
- A. Persons with Advanced class licenses
- B. Persons being between 18 and 21 years of age
- C. Persons who have ever had their amateur licenses
- suspended or revoked
- D. Persons who are employees of the Federal Government
- 74. Under what circumstances, if any, may a person be
- compensated for services as a VE?
- A. When the VE spends more than 4 hours at the test
- session
- B. When the VE loses a day's pay to administer the exam
- C. When the VE spends many hours preparing for the test
- session
- D. Under no circumstances
- 75. How much money, if any, may a person accept for services as
- a VE?
- A. None
- B. Up to a half day's pay if the VE spends more than 4
- hours at the test session
- C. Up to a full day's pay if the VE spends more than 4
- hours preparing for the test session
- D. Up to $50 if the VE spends more than 4 hours at the
- test session
- 76. What is an Element 1(A) examination intended to prove?
- A. The applicant's ability to send and receive Morse
- code at 5 WPM
- B. The applicant's ability to send and receive Morse
- code at 13 WPM
- C. The applicant's knowledge of Novice class theory and
- regulations
- D. The applicant's ability to send and receive Morse
- code at 20 WPM
- 77. What is an Element 1(B) examination intended to prove?
- A. The applicant's knowledge of Novice class theory and
- regulations
- B. The applicant's knowledge of General class theory and
- regulations
- C. The applicant's ability to send and receive Morse
- code at 5 WPM
- D. The applicant's ability to send and receive Morse
- code at 13 WPM
- 78. What is an Element 1(C) examination intended to prove?
- A. The applicant's ability to send and receive Morse
- code at 20 WPM
- B. The applicant's knowledge of Amateur Extra Class
- theory and regulations
- C. The applicant's ability to send and receive Morse
- code at 13 WPM
- D. The applicant's ability to send and receive Morse
- code at 5 WPM
- 79. What is Examination Element 2?
- A. The 5-WPM amateur Morse code examination
- B. The 13-WPM amateur Morse code examination
- C. The written examination for the Novice class operator
- license
- D. The written examination for the Technician class
- operator license
- 80. What is Examination Element 3(A)?
- A. The 5-WPM amateur Morse code examination
- B. The 13-WPM amateur Morse code examination
- C. The written examination for the Technician class
- operator license
- D. The written examination for the General class
- operator license
- 81. What is Examination Element 3(B)?
- A. The 5-WPM amateur Morse code examination
- B. The 13-WPM amateur Morse code examination
- C. The written examination for the Technician class
- operator license
- D. The written examination for the General class
- operator license
- 82. What is Examination Element 4(A)?
- A. The written examination for the Technician class
- operator license
- B. The 20-WPM amateur Morse code examination
- C. The written examination for the Advanced class
- operator license
- D. The written examination for the Amateur Extra Class
- operator license
- 83. What is Examination Element 4(B)?
- A. The written examination for the Technician class
- operator license
- B. The 20-WPM amateur Morse code examination
- C. The written examination for the Advanced class
- operator license
- D. The written examination for the Amateur Extra Class
- operator license
- 84. Who must prepare Examination Element 1(B)?
- A. Extra Class licensees serving as Volunteer Examiners,
- or Volunteer-Examiner Coordinators
- B. Advanced class licensees serving as Volunteer
- Examiners, or Volunteer-Examiner Coordinators
- C. The FCC
- D. The Field Operations Bureau
- 85. Who must prepare Examination Element 1(C)?
- A. The FCC
- B. The Field Operations Bureau
- C. Advanced class licensees serving as Volunteer
- Examiners, or Volunteer-Examiner Coordinators
- D. Extra Class licensees serving as Volunteer Examiners,
- or Volunteer-Examiner Coordinators
- 86. Who must prepare Examination Element 3(A)?
- A. Advanced or Extra Class licensees serving as
- Volunteer Examiners, or Volunteer-Examiner Coordinators
- B. The FCC
- C. The Field Operations Bureau
- D. Advanced or General class licensees serving as
- Volunteer Examiners, or Volunteer-Examiner Coordinators
- 87. Who must prepare Examination Element 3(B)?
- A. Extra Class licensees serving as Volunteer Examiners,
- or Volunteer-Examiner Coordinators
- B. The FCC
- C. The Field Operations Bureau
- D. Advanced or General class licensees serving as
- Volunteer Examiners, or Volunteer-Examiner Coordinators
- 88. Who must prepare Examination Element 4(A)?
- A. Advanced or Extra Class licensees serving as
- Volunteer Examiners, or Volunteer-Examiner Coordinators
- B. The FCC
- C. The Field Operations Bureau
- D. Extra Class licensees serving as Volunteer Examiners,
- or Volunteer-Examiner Coordinators
- 89. Who must prepare Examination Element 4(B)?
- A. Advanced or Extra Class licensees serving as
- Volunteer Examiners, or Volunteer-Examiner Coordinators
- B. The FCC
- C. The Field Operations Bureau
- D. Extra Class licensees serving as Volunteer Examiners,
- or Volunteer-Examiner Coordinators
- 90. What examination elements are required for an Amateur Extra
- Class operator license?
- A. 1(C) and 4(B)
- B. 3(B), 4(A) and 4(B)
- C. 1(B), 2, 3(A), 4(A) and 4(B)
- D. 1(C), 2, 3(A), 3(B), 4(A) and 4(B)
- 91. What examination elements are required for an Advanced class
- operator license?
- A. 1(A), 2, 3(A), 3(B) and 4(A)
- B. 1(B), 3(A) and 3(B)
- C. 1(B) and 4(A)
- D. 1(B), 2, 3(A), 3(B) and 4(A)
- 92. What examination elements are required for a General class
- operator license?
- A. 1(B), 2, 3(A) and 3(B)
- B. 1(A), 2, 3(A) and 3(B)
- C. 1(A), 3(A) and 3(B)
- D. 1(B), 3(A) and 3(B)
- 93. What examination elements are required for a Technician
- class operator license?
- A. 1(A) and 2
- B. 1(A) and 3(A)
- C. 1(A), 2 and 3(A)
- D. 2 and 3(A)
- 94. What examination credit must be given to an applicant who
- holds a valid Novice class operator license?
- A. Credit for successful completion of Elements 1(A) and
- 2
- B. Credit for successful completion of Elements 1(B) and
- 3(A)
- C. Credit for successful completion of Elements 1(B) and
- 2
- D. Credit for successful completion of Elements 1(A) and
- 3(A)
- 95. What examination credit must be given to an applicant who
- holds a valid Technician class operator license issued after March
- 20, 1987?
- A. Credit for successful completion of Elements 1(A) and
- 2
- B. Credit for successful completion of Elements 1(A), 2
- and 3(A)
- C. Credit for successful completion of Elements 1(B), 2
- and 3(A)
- D. Credit for successful completion of Elements 1(B),
- 3(A) and 3(B)
- 96. What examination credit must be given to an applicant who
- holds a valid Technician class operator license issued before March
- 21, 1987?
- A. Credit for successful completion of Elements 1(A), 2
- and 3(B)
- B. Credit for successful completion of Elements 1(A), 2,
- 3(A) and 3(B)
- C. Credit for successful completion of Elements 1(B), 2,
- 3(A) and 4(A)
- D. Credit for successful completion of Elements 1(B),
- 3(A) and 3(B)
- 97. What examination credit must be given to an applicant who
- holds a valid General class operator license?
- A. Credit for successful completion of Elements 1(B), 2,
- 3(A), 3(B) and 4(A)
- B. Credit for successful completion of Elements 1(A),
- 3(A), 3(B) and 4(A)
- C. Credit for successful completion of Elements 1(A), 2,
- 3(A), 3(B) and 4(B)
- D. Credit for successful completion of Elements 1(B), 2,
- 3(A) and 3(B)
- 98. What examination credit must be given to an applicant who
- holds a valid Advanced class operator license?
- A. Credit for successful completion of Element 4(A)
- B. Credit for successful completion of Elements 1(B) and
- 4(A)
- C. Credit for successful completion of Elements 1(B), 2,
- 3(A), 3(B) and 4(A)
- D. Credit for successful completion of Elements 1(C),
- 3(A), 3(B), 4(A) and 4(B)
- 99. What examination credit, if any, may be given to an
- applicant who holds a valid amateur operator license issued by
- another country?
- A. Credit for successful completion of any elements that
- may be identical to those required for U.S. licensees
- B. No credit
- C. Credit for successful completion of Elements 1(A),
- 1(B) and 1(C)
- D. Credit for successful completion of Elements 2, 3(A),
- 3(B), 4(A) and 4(B)
- 100. What examination credit, if any, may be given to an
- applicant who holds a valid amateur operator license issued by any
- other United States government agency than the FCC?
- A. No credit
- B. Credit for successful completion of Elements 1(A),
- 1(B) or 1(C)
- C. Credit for successful completion of Elements 4(A) and
- 4(B)
- D. Credit for successful completion of Element 1(C)
- 101. What examination credit must be given to an applicant who
- holds a valid FCC commercial radiotelegraph license?
- A. No credit
- B. Credit for successful completion of element 1(B) only
- C. Credit for successful completion of elements 1(A),
- 1(B) or 1(C)
- D. Credit for successful completion of element 1(A) only
- 102. What examination credit must be given to the holder of a
- valid Certificate of Successful Completion of Examination?
- A. Credit for previously completed written examination
- elements only
- B. Credit for the code speed associated with the
- previously completed telegraphy examination elements only
- C. Credit for previously completed written and
- telegraphy examination elements only
- D. Credit for previously completed commercial
- examination elements only
- 103. Who determines where and when examinations for amateur
- operator licenses are to be administered?
- A. The FCC
- B. The Section Manager
- C. The applicants
- D. The administering Volunteer Examiner Team
- 104. Where must the examiners be and what must they be doing
- during an examination?
- A. The examiners must be present and observing the
- candidate(s) throughout the entire examination
- B. The examiners must be absent to allow the
- candidate(s) to complete the entire examination in accordance with
- the traditional honor system
- C. The examiners must be present to observe the
- candidate(s) throughout the administration of telegraphy
- examination elements only
- D. The examiners must be present to observe the
- candidate(s) throughout the administration of written examination
- elements only
- 105. Who is responsible for the proper conduct and necessary
- supervision during an examination?
- A. The VEC
- B. The FCC
- C. The administering Volunteer Examiners
- D. The candidates and the administering Volunteer
- Examiners
- 106. What should an examiner do when a candidate fails to comply
- with the examiner's instructions?
- A. Warn the candidate that continued failure to comply
- with the examiner's instructions will result in termination of the
- examination
- B. Immediately terminate the examination
- C. Allow the candidate to complete the examination, but
- refuse to issue a Certificate of Successful Completion of
- Examination for any elements passed by fraudulent means
- D. Immediately terminate the examination and report the
- violation to federal law enforcement officials
- 107. What must the candidate do at the completion of the
- examination?
- A. Complete a brief written evaluation of the
- examination session
- B. Return all test papers to the examiners
- C. Return all test papers to the examiners and wait for
- them to be graded before leaving the examination site
- D. Pay the registration fee
- 108. When must the test papers be graded?
- A. Within 5 days of completion of an examination element
- B. Within 30 days of completion of an examination
- element
- C. Immediately upon completion of an examination element
- D. Within 10 days of completion of an examination
- element
- 109. Who must grade the test papers?
- A. The ARRL
- B. The administering Volunteer Examiners
- C. The Volunteer-Examiner Coordinator
- D. The FCC
- 110. How do the examiners inform a candidate who does not score
- a passing grade?
- A. Give the percentage of the questions answered
- correctly and return the application to the candidate
- B. Give the percentage of the questions answered
- incorrectly and return the application to the candidate
- C. Tell the candidate that he or she failed and return
- the application to the candidate
- D. Show how the incorrect answers should have been
- answered and give a copy of the corrected answer sheet to the
- candidate
- 111. What must the examiners do when the candidate scores a
- passing grade?
- A. Give the percentage of the questions answered
- correctly and return the application to the candidate
- B. Tell the candidate that he or she passed
- C. Issue the candidate an operator license
- D. Issue the candidate a Certificate of Successful
- Completion of Examination for the appropriate exam element(s)
- 112. Within what time limit after administering an exam must the
- examiners submit the applications and test papers from successful
- candidates to the VEC?
- A. Within 10 days
- B. Within 15 days
- C. Within 30 days
- D. Within 90 days
- 113. To whom do the examiners submit successful candidates'
- applications and test papers?
- A. To the candidate
- B. To the coordinating VEC
- C. To the local radio club
- D. To the regional Section Manager
- 114. When an applicant passes an examination to upgrade his or
- her operator license, under what authority may he or she be the
- control operator of an amateur station with the privileges of the
- higher operator class?
- A. That of the Certificate of Successful Completion of
- Examination issued by the VE Team that administered the examination
- B. That of the ARRL
- C. Applicants already licensed in the Amateur Radio
- Service may not use their newly earned privileges until they
- receive their permanent amateur station and operator licenses
- D. Applicants may only use their newly earned privileges
- during emergencies pending issuance of their permanent amateur
- station and operator licenses
- 115. What is a Certificate of Successful Completion of
- Examination?
- A. A document printed by the FCC
- B. A document required for already licensed applicants
- operating with privileges of an amateur operator class higher than
- that of their permanent amateur operator licenses
- C. A document a candidate may use for an indefinite
- period of time to receive credit for successful completion of any
- written element
- D. A permanent Amateur Radio station and operator
- license certificate issued to a newly-upgraded licensee by the FCC
- within 90 days of the completion of the examination
- 116. How long may a successful applicant operate a station under
- Section 97.35 with the rights and privileges of the higher operator
- class for which the applicant has passed the appropriate
- examinations?
- A. 30 days or until issuance of a permanent operator and
- station license, whichever comes first
- B. 3 months or until issuance of the permanent operator
- and station license, whichever comes first
- C. 6 months or until issuance of the permanent operator
- and station license, whichever comes first
- D. 1 year or until issuance of the permanent operator
- and station license, whichever comes first
- 117. How must the station call sign be amended when operating
- under the temporary authority authorized by Section 97.35?
- A. The applicant must use an identifier code as a prefix
- to his or her present call sign, e.g., when using voice; "interim
- AE KA1MJP"
- B. The applicant must use an identifier code as a suffix
- to his or her present call sign, e.g., when using voice; "KA1MJP
- temporary AE"
- C. By adding after the call sign, when using voice, the
- phrase "operating temporary Technician, General, Advanced or Extra"
- D. By adding to the call sign, when using CW, the slant
- bar followed by the letters T, G, A or E
- 118. What is an ascending pass for an amateur satellite?
- A. A pass from west to east
- B. A pass from east to west
- C. A pass from south to north
- D. A pass from north to south
- 119. What is a descending pass for an amateur satellite?
- A. A pass from north to south
- B. A pass from west to east
- C. A pass from east to west
- D. A pass from south to north
- 120. What is the period of an amateur satellite?
- A. An orbital arc that extends from 60 degrees west
- longitude to 145 degrees west longitude
- B. The point on an orbit where satellite height is
- minimum
- C. The amount of time it takes for a satellite to
- complete one orbit
- D. The time it takes a satellite to travel from perigee
- to apogee
- 121. What is Mode A in an amateur satellite?
- A. Operation through a 10-meter receiver on a satellite
- that retransmits on 2 meters
- B. The lowest frequency used in Phase 3 transponders
- C. The highest frequency used in Phase 3 translators
- D. Operation through a 2-meter receiver on a satellite
- that retransmits on 10 meters
- 122. What is Mode B in an amateur satellite?
- A. Operation through a 10-meter receiver on a satellite
- that retransmits on 2 meters
- B. Operation through a 70-centimeter receiver on a
- satellite that retransmits on 2 meters
- C. The beacon output
- D. A codestore device used to record messages
- 123. What is Mode J in an amateur satellite?
- A. Operation through a 70-centimeter receiver on a
- satellite that retransmits on 2 meters
- B. Operation through a 2-meter receiver on a satellite
- that retransmits on 70 centimeters
- C. Operation through a 2-meter receiver on a satellite
- that retransmits on 10 meters
- D. Operation through a 70-centimeter receiver on a
- satellite that retransmits on 10 meters
- 124. What is Mode L in an amateur satellite?
- A. Operation through a 70-centimeter receiver on a
- satellite that retransmits on 10 meters
- B. Operation through a 23-centimeter receiver on a
- satellite that retransmits on 70 centimeters
- C. Operation through a 70-centimeter receiver on a
- satellite that retransmits on 23 centimeters
- D. Operation through a 10-meter receiver on a satellite
- that retransmits on 70 centimeters
- 125. What is a linear transponder?
- A. A repeater that passes only linear or CW signals
- B. A device that receives and retransmits signals of any
- mode in a certain passband
- C. An amplifier for SSB transmissions
- D. A device used to change FM to SSB
- 126. What are the two basic types of linear transponders used in
- amateur satellites?
- A. Inverting and non-inverting
- B. Geostationary and elliptical
- C. Phase 2 and Phase 3
- D. Amplitude modulated and frequency modulated
- 127. Why does the downlink frequency appear to vary by several
- kHz during a low-earth-orbit amateur satellite pass?
- A. The distance between the satellite and ground station
- is changing, causing the Kepler effect
- B. The distance between the satellite and ground station
- is changing, causing the Bernoulli effect
- C. The distance between the satellite and ground station
- is changing, causing the Boyles' law effect
- D. The distance between the satellite and ground station
- is changing, causing the Doppler effect
- 128. Why does the received signal from a Phase III amateur
- satellite exhibit a fairly rapid pulsed fading effect?
- A. Because the satellite is rotating
- B. Because of ionospheric absorption
- C. Because of the satellite's low orbital altitude
- D. Because of the Doppler effect
- 129. What type of antenna can be used to minimize the effects of
- spin modulation and Faraday rotation?
- A. A nonpolarized antenna
- B. A circularly polarized antenna
- C. An isotropic antenna
- D. A log-periodic dipole array
- 130. How often is a new frame transmitted in a fast-scan
- television system?
- A. 30 times per second
- B. 60 times per second
- C. 90 times per second
- D. 120 times per second
- 131. How many horizontal lines make up a fast-scan television
- frame?
- A. 30
- B. 60
- C. 525
- D. 1050
- 132. How is the interlace scanning pattern generated in a fast-
- scan television system?
- A. By scanning the field from top to bottom
- B. By scanning the field from bottom to top
- C. By scanning even numbered lines in one field and odd
- numbered ones in the next
- D. By scanning from left to right in one field and right
- to left in the next
- 133. What is blanking in a video signal?
- A. Synchronization of the horizontal and vertical sync-
- pulses
- B. Turning off the scanning beam while it is traveling
- from right to left and from bottom to top
- C. Turning off the scanning beam at the conclusion of a
- transmission
- D. Transmitting a black and white test pattern
- 134. What is the standard video voltage level between the sync
- tip and the whitest white at TV camera outputs and modulator
- inputs?
- A. 1 volt peak-to-peak
- B. 120 IEEE units
- C. 12 volts DC
- D. 5 volts RMS
- 135. What is the bandwidth of a fast-scan television
- transmission?
- A. 3 kHz
- B. 10 kHz
- C. 25 kHz
- D. 6 MHz
- 136. What is the standard video level, in percent PEV, for black?
- A. 0%
- B. 12.5%
- C. 70%
- D. 100%
- 137. What is the standard video level, in percent PEV, for white?
- A. 0%
- B. 12.5%
- C. 70%
- D. 100%
- 138. What is the standard video level, in percent PEV, for
- blanking?
- A. 0%
- B. 12.5%
- C. 75%
- D. 100%
- 139. What is the maximum separation between two stations
- communicating by moonbounce?
- A. 500 miles maximum, if the moon is at perigee
- B. 2,000 miles maximum, if the moon is at apogee
- C. 5,000 miles maximum, if the moon is at perigee
- D. Any distance as long as the stations have a mutual
- lunar window
- 140. What characterizes libration fading of an EME signal?
- A. A slow change in the pitch of the CW signal
- B. A fluttery, rapid irregular fading
- C. A gradual loss of signal as the sun rises
- D. The returning echo is several Hertz lower in
- frequency than the transmitted signal
- 141. What are the best days to schedule EME contacts?
- A. When the moon is at perigee
- B. When the moon is full
- C. When the moon is at apogee
- D. When the weather at both stations is clear
- 142. What type of receiving system is required for EME
- communications?
- A. Equipment capable of reception on 14 MHz
- B. Equipment with very low dynamic range
- C. Equipment with very low gain
- D. Equipment with very low noise figures
- 143. What type of transmitting system is required for EME
- communications?
- A. A transmitting system capable of operation on the 21
- MHz band
- B. A transmitting system capable of producing a very
- high ERP
- C. A transmitting system using an unmodulated carrier
- D. A transmitting system with a high second harmonic
- output
- 144. When the earth's atmosphere is struck by a meteor, a
- cylindrical region of free electrons is formed at what layer of the
- ionosphere?
- A. The F1 layer
- B. The E layer
- C. The F2 layer
- D. The D layer
- 145. Which range of frequencies is well suited for meteor-scatter
- communications?
- A. 1.8 - 1.9 MHz
- B. 10 - 14 MHz
- C. 28 - 148 MHz
- D. 220 - 450 MHz
- 146. What is transequatorial propagation?
- A. Propagation between two points at approximately the
- same distance north and south of the magnetic equator
- B. Propagation between two points on the magnetic
- equator
- C. Propagation between two continents by way of ducts
- along the magnetic equator
- D. Propagation between any two stations at the same
- latitude
- 147. What is the maximum range for signals using transequatorial
- propagation?
- A. About 1,000 miles
- B. About 2,500 miles
- C. About 5,000 miles
- D. About 7,500 miles
- 148. What is the best time of day for transequatorial
- propagation?
- A. Morning
- B. Noon
- C. Afternoon or early evening
- D. Trans-equatorial propagation only works at night
- 149. If a beam antenna must be pointed in a direction 180 degrees
- away from a station to receive the strongest signals, what type of
- propagation is probably occurring?
- A. Transequatorial propagation
- B. Sporadic-E propagation
- C. Long-path propagation
- D. Auroral propagation
- 150. What is the name for a type of propagation in which radio
- signals travel along the terminator, which separates daylight from
- darkness?
- A. Transequatorial propagation
- B. Sporadic-E propagation
- C. Long-path propagation
- D. Gray-line propagation
- 151. How does a spectrum analyzer differ from a conventional
- time-domain oscilloscope?
- A. The oscilloscope is used to display electrical
- signals while the spectrum analyzer is used to measure ionospheric
- reflection
- B. The oscilloscope is used to display electrical
- signals in the frequency domain while the spectrum analyzer is used
- to display electrical signals in the time domain
- C. The oscilloscope is used to display electrical
- signals in the time domain while the spectrum analyzer is used to
- display electrical signals in the frequency domain
- D. The oscilloscope is used for displaying audio
- frequencies and the spectrum analyzer is used for displaying radio
- frequencies
- 152. What does the horizontal axis of a spectrum analyzer
- display?
- A. Amplitude
- B. Voltage
- C. Resonance
- D. Frequency
- 153. What does the vertical axis of a spectrum analyzer display?
- A. Amplitude
- B. Duration
- C. Frequency
- D. Time
- 154. What test instrument can be used to display spurious signals
- in the output of a radio transmitter?
- A. A spectrum analyzer
- B. A wattmeter
- C. A logic analyzer
- D. A time-domain reflectometer
- 155. What test instrument is used to display intermodulation
- distortion products from an SSB transmitter?
- A. A wattmeter
- B. A spectrum analyzer
- C. A logic analyzer
- D. A time-domain reflectometer
- 156. What advantage does a logic probe have over a voltmeter for
- monitoring logic states in a circuit?
- A. A logic probe has fewer leads to connect to a circuit
- than a voltmeter
- B. A logic probe can be used to test analog and digital
- circuits
- C. A logic probe can be powered by commercial AC lines
- D. A logic probe is smaller and shows a simplified
- readout
- 157. What piece of test equipment can be used to directly
- indicate high and low logic states?
- A. A galvanometer
- B. An electroscope
- C. A logic probe
- D. A Wheatstone bridge
- 158. What is a logic probe used to indicate?
- A. A short-circuit fault in a digital-logic circuit
- B. An open-circuit failure in a digital-logic circuit
- C. A high-impedance ground loop
- D. High and low logic states in a digital-logic circuit
- 159. What piece of test equipment besides an oscilloscope can be
- used to indicate pulse conditions in a digital-logic circuit?
- A. A logic probe
- B. A galvanometer
- C. An electroscope
- D. A Wheatstone bridge
- 160. What is one of the most significant problems you might
- encounter when you try to receive signals with a mobile station?
- A. Ignition noise
- B. Doppler shift
- C. Radar interference
- D. Mechanical vibrations
- 161. What is the proper procedure for suppressing electrical
- noise in a mobile station?
- A. Apply shielding and filtering where necessary
- B. Insulate all plane sheet metal surfaces from each
- other
- C. Apply antistatic spray liberally to all non-metallic
- surfaces
- D. Install filter capacitors in series with all DC
- wiring
- 162. How can ferrite beads be used to suppress ignition noise?
- A. Install them in the resistive high voltage cable
- every 2 years
- B. Install them between the starter solenoid and the
- starter motor
- C. Install them in the primary and secondary ignition
- leads
- D. Install them in the antenna lead to the radio
- 163. How can ensuring good electrical contact between connecting
- metal surfaces in a vehicle reduce spark plug noise?
- A. It reduces the spark gap distance, causing a lower
- frequency spark
- B. It helps radiate the spark plug noise away from the
- vehicle
- C. It reduces static buildup on the vehicle body
- D. It encourages lower frequency electrical resonances
- in the vehicle
- 164. How can alternator whine be minimized?
- A. By connecting the radio's power leads to the battery
- by the longest possible path
- B. By connecting the radio's power leads to the battery
- by the shortest possible path
- C. By installing a high pass filter in series with the
- radio's DC power lead to the vehicle's electrical system
- D. By installing filter capacitors in series with the DC
- power lead
- 165. How can conducted and radiated noise caused by an automobile
- alternator be suppressed?
- A. By installing filter capacitors in series with the DC
- power lead and by installing a blocking capacitor in the field lead
- B. By connecting the radio's power leads to the battery
- by the longest possible path and by installing a blocking capacitor
- in series with the positive lead
- C. By installing a high pass filter in series with the
- radio's power lead to the vehicle's electrical system and by
- installing a low-pass filter in parallel with the field lead
- D. By connecting the radio power leads directly to the
- battery and by installing coaxial capacitors in the alternator
- leads
- 166. What is a major cause of atmospheric static?
- A. Sunspots
- B. Thunderstorms
- C. Airplanes
- D. Meteor showers
- 167. How can you determine if a line-noise interference problem
- is being generated within your home?
- A. Check the power-line voltage with a time-domain
- reflectometer
- B. Observe the AC waveform on an oscilloscope
- C. Turn off the main circuit breaker and listen on a
- battery-operated radio
- D. Observe the power-line voltage on a spectrum analyzer
- 168. What is the main drawback of a wire-loop antenna for
- direction finding?
- A. It has a bidirectional pattern broadside to the loop
- B. It is non-rotatable
- C. It receives equally well in all directions
- D. It is practical for use only on VHF bands
- 169. What directional pattern is desirable for a direction-
- finding antenna?
- A. A non-cardioid pattern
- B. Good front-to-back and front-to-side ratios
- C. Good top-to-bottom and front-to-side ratios
- D. Shallow nulls
- 170. What is the triangulation method of direction finding?
- A. Using the geometric angle of ground waves and sky
- waves emanating from the same source to locate the signal source
- B. A fixed receiving station uses three beam headings to
- plot the signal source on a map
- C. Beam headings from several receiving locations are
- used to plot the signal source on a map
- D. The use of three vertical antennas to indicate the
- location of the signal source
- 171. Why is an RF attenuator desirable in a receiver used for
- direction finding?
- A. It narrows the bandwidth of the received signal
- B. It eliminates the effects of isotropic radiation
- C. It reduces loss of received signals caused by antenna
- pattern nulls
- D. It prevents receiver overload from extremely strong
- signals
- 172. What is a sense antenna?
- A. A vertical antenna added to a loop antenna to produce
- a cardioid reception pattern
- B. A horizontal antenna added to a loop antenna to
- produce a cardioid reception pattern
- C. A vertical antenna added to an Adcock antenna to
- produce an omnidirectional reception pattern
- D. A horizontal antenna added to an Adcock antenna to
- produce a cardioid reception pattern
- 173. What type of antenna is most useful for sky-wave reception
- in radio direction finding?
- A. A log-periodic dipole array
- B. An isotropic antenna
- C. A circularly polarized antenna
- D. An Adcock antenna
- 174. What is a loop antenna?
- A. A circularly polarized antenna
- B. A coil of wire used as an antenna in FM broadcast
- receivers
- C. A wire loop used in radio direction finding
- D. An antenna coupled to the feed line through an
- inductive loop of wire
- 175. How can the output voltage of a loop antenna be increased?
- A. By reducing the permeability of the loop shield
- B. By increasing the number of wire turns in the loop
- while reducing the area of the loop structure
- C. By reducing either the number of wire turns in the
- loop, or the area of the loop structure
- D. By increasing either the number of wire turns in the
- loop, or the area of the loop structure
- 176. Why is an antenna system with a cardioid pattern desirable
- for a direction-finding system?
- A. The broad side responses of the cardioid pattern can
- be aimed at the desired station
- B. The deep null of the cardioid pattern can pinpoint
- the direction of the desired station
- C. The sharp peak response of the cardioid pattern can
- pinpoint the direction of the desired station
- D. The high radiation angle of the cardioid pattern is
- useful for short-distance direction finding
- 177. What type of terrain can cause errors in direction finding?
- A. Homogeneous terrain
- B. Smooth grassy terrain
- C. Varied terrain
- D. Terrain with no buildings or mountains
- 178. What is the photoconductive effect?
- A. The conversion of photon energy to electromotive
- energy
- B. The increased conductivity of an illuminated
- semiconductor junction
- C. The conversion of electromotive energy to photon
- energy
- D. The decreased conductivity of an illuminated
- semiconductor junction
- 179. What happens to photoconductive material when light shines
- on it?
- A. The conductivity of the material increases
- B. The conductivity of the material decreases
- C. The conductivity of the material stays the same
- D. The conductivity of the material becomes temperature
- dependent
- 180. What happens to the resistance of a photoconductive material
- when light shines on it?
- A. It increases
- B. It becomes temperature dependent
- C. It stays the same
- D. It decreases
- 181. What happens to the conductivity of a semiconductor junction
- when it is illuminated?
- A. It stays the same
- B. It becomes temperature dependent
- C. It increases
- D. It decreases
- 182. What is an optocoupler?
- A. A resistor and a capacitor
- B. A frequency modulated helium-neon laser
- C. An amplitude modulated helium-neon laser
- D. An LED and a phototransistor
- 183. What is an optoisolator?
- A. An LED and a phototransistor
- B. A P-N junction that develops an excess positive
- charge when exposed to light
- C. An LED and a capacitor
- D. An LED and a solar cell
- 184. What is an optical shaft encoder?
- A. An array of optocouplers chopped by a stationary
- wheel
- B. An array of optocouplers whose light transmission
- path is controlled by a rotating wheel
- C. An array of optocouplers whose propagation velocity
- is controlled by a stationary wheel
- D. An array of optocouplers whose propagation velocity
- is controlled by a rotating wheel
- 185. What does the photoconductive effect in crystalline solids
- produce a noticeable change in?
- A. The capacitance of the solid
- B. The inductance of the solid
- C. The specific gravity of the solid
- D. The resistance of the solid
- 186. What is the meaning of the term time constant of an RC
- circuit?
- A. The time required to charge the capacitor in the
- circuit to 36.8% of the supply voltage
- B. The time required to charge the capacitor in the
- circuit to 36.8% of the supply current
- C. The time required to charge the capacitor in the
- circuit to 63.2% of the supply current
- D. The time required to charge the capacitor in the
- circuit to 63.2% of the supply voltage
- 187. What is the meaning of the term time constant of an RL
- circuit?
- A. The time required for the current in the circuit to
- build up to 36.8% of the maximum value
- B. The time required for the voltage in the circuit to
- build up to 63.2% of the maximum value
- C. The time required for the current in the circuit to
- build up to 63.2% of the maximum value
- D. The time required for the voltage in the circuit to
- build up to 36.8% of the maximum value
- 188. What is the term for the time required for the capacitor in
- an RC circuit to be charged to 63.2% of the supply voltage?
- A. An exponential rate of one
- B. One time constant
- C. One exponential period
- D. A time factor of one
- 189. What is the term for the time required for the current in an
- RL circuit to build up to 63.2% of the maximum value?
- A. One time constant
- B. An exponential period of one
- C. A time factor of one
- D. One exponential rate
- 190. What is the term for the time it takes for a charged
- capacitor in an RC circuit to discharge to 36.8% of its initial
- value of stored charge?
- A. One discharge period
- B. An exponential discharge rate of one
- C. A discharge factor of one
- D. One time constant
- 191. What is meant by back EMF?
- A. A current equal to the applied EMF
- B. An opposing EMF equal to R times C (RC) percent of
- the applied EMF
- C. A current that opposes the applied EMF
- D. A voltage that opposes the applied EMF
- 192. After two time constants, the capacitor in an RC circuit is
- charged to what percentage of the supply voltage?
- A. 36.8%
- B. 63.2%
- C. 86.5%
- D. 95%
- 193. After two time constants, the capacitor in an RC circuit is
- discharged to what percentage of the starting voltage?
- A. 86.5%
- B. 63.2%
- C. 36.8%
- D. 13.5%
- 194. What is the time constant of a circuit having a 100-
- microfarad capacitor in series with a 470-kilohm resistor?
- A. 4700 seconds
- B. 470 seconds
- C. 47 seconds
- D. 0.47 seconds
- 195. What is the time constant of a circuit having a 220-
- microfarad capacitor in parallel with a 1-megohm resistor?
- A. 220 seconds
- B. 22 seconds
- C. 2.2 seconds
- D. 0.22 seconds
- 196. What is the time constant of a circuit having two 100-
- microfarad capacitors and two 470-kilohm resistors all in series?
- A. 470 seconds
- B. 47 seconds
- C. 4.7 seconds
- D. 0.47 seconds
- 197. What is the time constant of a circuit having two 100-
- microfarad capacitors and two 470-kilohm resistors all in parallel?
- A. 470 seconds
- B. 47 seconds
- C. 4.7 seconds
- D. 0.47 seconds
- 198. What is the time constant of a circuit having two 220-
- microfarad capacitors and two 1-megohm resistors all in series?
- A. 55 seconds
- B. 110 seconds
- C. 220 seconds
- D. 440 seconds
- 199. What is the time constant of a circuit having two 220-
- microfarad capacitors and two 1-megohm resistors all in parallel?
- A. 22 seconds
- B. 44 seconds
- C. 220 seconds
- D. 440 seconds
- 200. What is the time constant of a circuit having one 100-
- microfarad capacitor, one 220-microfarad capacitor, one 470- kilohm
- resistor and one 1-megohm resistor all in series?
- A. 68.8 seconds
- B. 101.1 seconds
- C. 220.0 seconds
- D. 470.0 seconds
- 201. What is the time constant of a circuit having a 470-
- microfarad capacitor and a 1-megohm resistor in parallel?
- A. 0.47 seconds
- B. 47 seconds
- C. 220 seconds
- D. 470 seconds
- 202. What is the time constant of a circuit having a 470-
- microfarad capacitor in series with a 470-kilohm resistor?
- A. 221 seconds
- B. 221000 seconds
- C. 470 seconds
- D. 470000 seconds
- 203. What is the time constant of a circuit having a 220-
- microfarad capacitor in series with a 470-kilohm resistor?
- A. 103 seconds
- B. 220 seconds
- C. 470 seconds
- D. 470000 seconds
- 204. How long does it take for an initial charge of 20 V DC to
- decrease to 7.36 V DC in a 0.01-microfarad capacitor when a 2-
- megohm resistor is connected across it?
- A. 12.64 seconds
- B. 0.02 seconds
- C. 1 second
- D. 7.98 seconds
- 205. How long does it take for an initial charge of 20 V DC to
- decrease to 2.71 V DC in a 0.01-microfarad capacitor when a 2-
- megohm resistor is connected across it?
- A. 0.04 seconds
- B. 0.02 seconds
- C. 7.36 seconds
- D. 12.64 seconds
- 206. How long does it take for an initial charge of 20 V DC to
- decrease to 1 V DC in a 0.01-microfarad capacitor when a 2-megohm
- resistor is connected across it?
- A. 0.01 seconds
- B. 0.02 seconds
- C. 0.04 seconds
- D. 0.06 seconds
- 207. How long does it take for an initial charge of 20 V DC to
- decrease to 0.37 V DC in a 0.01-microfarad capacitor when a 2-
- megohm resistor is connected across it?
- A. 0.08 seconds
- B. 0.6 seconds
- C. 0.4 seconds
- D. 0.2 seconds
- 208. How long does it take for an initial charge of 20 V DC to
- decrease to 0.13 V DC in a 0.01-microfarad capacitor when a 2-
- megohm resistor is connected across it?
- A. 0.06 seconds
- B. 0.08 seconds
- C. 0.1 seconds
- D. 1.2 seconds
- 209. How long does it take for an initial charge of 800 V DC to
- decrease to 294 V DC in a 450-microfarad capacitor when a 1-megohm
- resistor is connected across it?
- A. 80 seconds
- B. 294 seconds
- C. 368 seconds
- D. 450 seconds
- 210. How long does it take for an initial charge of 800 V DC to
- decrease to 108 V DC in a 450-microfarad capacitor when a 1-megohm
- resistor is connected across it?
- A. 225 seconds
- B. 294 seconds
- C. 450 seconds
- D. 900 seconds
- 211. How long does it take for an initial charge of 800 V DC to
- decrease to 39.9 V DC in a 450-microfarad capacitor when a 1-megohm
- resistor is connected across it?
- A. 1350 seconds
- B. 900 seconds
- C. 450 seconds
- D. 225 seconds
- 212. How long does it take for an initial charge of 800 V DC to
- decrease to 40.2 V DC in a 450-microfarad capacitor when a 1-megohm
- resistor is connected across it?
- A. Approximately 225 seconds
- B. Approximately 450 seconds
- C. Approximately 900 seconds
- D. Approximately 1350 seconds
- 213. How long does it take for an initial charge of 800 V DC to
- decrease to 14.8 V DC in a 450-microfarad capacitor when a 1-megohm
- resistor is connected across it?
- A. Approximately 900 seconds
- B. Approximately 1350 seconds
- C. Approximately 1804 seconds
- D. Approximately 2000 seconds
- 214. What is a Smith Chart?
- A. A graph for calculating impedance along transmission
- lines
- B. A graph for calculating great circle bearings
- C. A graph for calculating antenna height
- D. A graph for calculating radiation patterns
- 215. What type of coordinate system is used in a Smith Chart?
- A. Voltage and current circles
- B. Resistance and reactance circles
- C. Voltage and current lines
- D. Resistance and reactance lines
- 216. What type of calculations can be performed using a Smith
- Chart?
- A. Beam headings and radiation patterns
- B. Satellite azimuth and elevation bearings
- C. Impedance and SWR values in transmission lines
- D. Circuit gain calculations
- 217. What are the two families of circles that make up a Smith
- Chart?
- A. Resistance and voltage
- B. Reactance and voltage
- C. Resistance and reactance
- D. Voltage and impedance
- 218. What is the only straight line on a blank Smith Chart?
- A. The reactance axis
- B. The resistance axis
- C. The voltage axis
- D. The current axis
- 219. What is the process of normalizing with regard to a Smith
- Chart?
- A. Reassigning resistance values with regard to the
- reactance axis
- B. Reassigning reactance values with regard to the
- resistance axis
- C. Reassigning resistance values with regard to the
- prime center
- D. Reassigning prime center with regard to the reactance
- axis
- 220. What are the curved lines on a Smith Chart?
- A. Portions of current circles
- B. Portions of voltage circles
- C. Portions of resistance circles
- D. Portions of reactance circles
- 221. What is the third family of circles which are added to a
- Smith Chart during the process of solving problems?
- A. Coaxial length circles
- B. Antenna length circles
- C. Standing wave ratio circles
- D. Radiation pattern circles
- 222. How are the wavelength scales on a Smith Chart calibrated?
- A. In portions of transmission line electrical frequency
- B. In portions of transmission line electrical
- wavelength
- C. In portions of antenna electrical wavelength
- D. In portions of antenna electrical frequency
- 223. What is the impedance of a network comprised of a 0.1-
- microhenry inductor in series with a 20-ohm resistor, at 30 MHz?
- (Specify your answer in rectangular coordinates.)
- A. 20 + j19
- B. 20 - j19
- C. 19 + j20
- D. 19 - j20
- 224. What is the impedance of a network comprised of a 0.1-
- microhenry inductor in series with a 30-ohm resistor, at 5 MHz?
- (Specify your answer in rectangular coordinates.)
- A. 30 - j3
- B. 30 + j3
- C. 3 + j30
- D. 3 - j30
- 225. What is the impedance of a network comprised of a 10-
- microhenry inductor in series with a 40-ohm resistor, at 500 MHz?
- (Specify your answer in rectangular coordinates.)
- A. 40 + j31400
- B. 40 - j31400
- C. 31400 + j40
- D. 31400 - j40
- 226. What is the impedance of a network comprised of a 100-
- picofarad capacitor in parallel with a 4000-ohm resistor, at 500
- kHz? (Specify your answer in polar coordinates.)
- A. 2490 ohms, / 51.5 degrees
- B. 4000 ohms, / 38.5 degrees
- C. 5112 ohms, / -38.5 degrees
- D. 2490 ohms, / -51.5 degrees
- 227. What is the impedance of a network comprised of a 0.001-
- microfarad capacitor in series with a 400-ohm resistor, at 500 kHz?
- (Specify your answer in rectangular coordinates.)
- A. 400 - j318
- B. 318 - j400
- C. 400 + j318
- D. 318 + j400
- 228. What is the impedance of a network comprised of a 100-ohm-
- reactance inductor in series with a 100-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 121 ohms, / 35 degrees
- B. 141 ohms, / 45 degrees
- C. 161 ohms, / 55 degrees
- D. 181 ohms, / 65 degrees
- 229. What is the impedance of a network comprised of a 100-ohm-
- reactance inductor, a 100-ohm-reactance capacitor, and a 100-ohm
- resistor all connected in series? (Specify your answer in polar
- coordinates.)
- A. 100 ohms, / 90 degrees
- B. 10 ohms, / 0 degrees
- C. 100 ohms, / 0 degrees
- D. 10 ohms, / 100 degrees
- 230. What is the impedance of a network comprised of a 400-ohm-
- reactance capacitor in series with a 300-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 240 ohms, / 36.9 degrees
- B. 240 ohms, / -36.9 degrees
- C. 500 ohms, / 53.1 degrees
- D. 500 ohms, / -53.1 degrees
- 231. What is the impedance of a network comprised of a 300-ohm-
- reactance capacitor, a 600-ohm-reactance inductor, and a 400- ohm
- resistor, all connected in series? (Specify your answer in polar
- coordinates.)
- A. 500 ohms, / 37 degrees
- B. 400 ohms, / 27 degrees
- C. 300 ohms, / 17 degrees
- D. 200 ohms, / 10 degrees
- 232. What is the impedance of a network comprised of a 400-ohm-
- reactance inductor in parallel with a 300-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 240 ohms, / 36.9 degrees
- B. 240 ohms, / -36.9 degrees
- C. 500 ohms, / 53.1 degrees
- D. 500 ohms, / -53.1 degrees
- 233. What is the impedance of a network comprised of a 1.0-
- millihenry inductor in series with a 200-ohm resistor, at 30 kHz?
- (Specify your answer in rectangular coordinates.)
- A. 200 - j188
- B. 200 + j188
- C. 188 + j200
- D. 188 - j200
- 234. What is the impedance of a network comprised of a 10-
- millihenry inductor in series with a 600-ohm resistor, at 10 kHz?
- (Specify your answer in rectangular coordinates.)
- A. 628 + j600
- B. 628 - j600
- C. 600 + j628
- D. 600 - j628
- 235. What is the impedance of a network comprised of a 0.01-
- microfarad capacitor in parallel with a 300-ohm resistor, at 50
- kHz? (Specify your answer in rectangular coordinates.)
- A. 150 - j159
- B. 150 + j159
- C. 159 + j150
- D. 159 - j150
- 236. What is the impedance of a network comprised of a 0.1-
- microfarad capacitor in series with a 40-ohm resistor, at 50 kHz?
- (Specify your answer in rectangular coordinates.)
- A. 40 + j32
- B. 40 - j32
- C. 32 - j40
- D. 32 + j40
- 237. What is the impedance of a network comprised of a 1.0-
- microfarad capacitor in parallel with a 30-ohm resistor, at 5 MHz?
- (Specify your answer in rectangular coordinates.)
- A. 0.000034 + j.032
- B. 0.032 + j.000034
- C. 0.000034 - j.032
- D. 0.032 - j.000034
- 238. What is the impedance of a network comprised of a 100-ohm-
- reactance capacitor in series with a 100-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 121 ohms, / -25 degrees
- B. 141 ohms, / -45 degrees
- C. 161 ohms, / -65 degrees
- D. 191 ohms, / -85 degrees
- 239. What is the impedance of a network comprised of a 100-ohm-
- reactance capacitor in parallel with a 100-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 31 ohms, / -15 degrees
- B. 51 ohms, / -25 degrees
- C. 71 ohms, / -45 degrees
- D. 91 ohms, / -65 degrees
- 240. What is the impedance of a network comprised of a 300-ohm-
- reactance inductor in series with a 400-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 400 ohms, / 27 degrees
- B. 500 ohms, / 37 degrees
- C. 600 ohms, / 47 degrees
- D. 700 ohms, / 57 degrees
- 241. What is the impedance of a network comprised of a 100-ohm-
- reactance inductor in parallel with a 100-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 71 ohms, / 45 degrees
- B. 81 ohms, / 55 degrees
- C. 91 ohms, / 65 degrees
- D. 100 ohms, / 75 degrees
- 242. What is the impedance of a network comprised of a 300-ohm-
- reactance capacitor in series with a 400-ohm resistor? (Specify
- your answer in polar coordinates.)
- A. 200 ohms, / -10 degrees
- B. 300 ohms, / -17 degrees
- C. 400 ohms, / -27 degrees
- D. 500 ohms, / -37 degrees
- 243. What is an enhancement-mode FET?
- A. An FET with a channel that blocks voltage through the
- gate
- B. An FET with a channel that allows a current when the
- gate voltage is zero
- C. An FET without a channel to hinder current through
- the gate
- D. An FET without a channel; no current occurs with zero
- gate voltage
- 244. What is a depletion-mode FET?
- A. An FET that has a channel with no gate voltage
- applied; a current flows with zero gate voltage
- B. An FET that has a channel that blocks current when
- the gate voltage is zero
- C. An FET without a channel; no current flows with zero
- gate voltage
- D. An FET without a channel to hinder current through
- the gate
- 245. What is the schematic symbol for an N-channel MOSFET?
- A B C D
- 246. What is the schematic symbol for a P-channel MOSFET?
- A B C D
- 247. What is the schematic symbol for an N-channel dual-gate
- MOSFET?
- A B C D
- 248. What is the schematic symbol for a P-channel dual-gate
- MOSFET?
- A B C D
- 249. Why do many MOSFET devices have built-in gate-protective
- Zener diodes?
- A. The gate-protective Zener diode provides a voltage
- reference to provide the correct amount of reverse-bias gate
- voltage
- B. The gate-protective Zener diode protects the
- substrate from excessive voltages
- C. The gate-protective Zener diode keeps the gate
- voltage within specifications to prevent the device from
- overheating
- D. The gate-protective Zener diode prevents the gate
- insulation from being punctured by small static charges or
- excessive voltages
- 250. What do the initials CMOS stand for?
- A. Common mode oscillating system
- B. Complementary mica-oxide silicon
- C. Complementary metal-oxide semiconductor
- D. Complementary metal-oxide substrate
- 251. Why are special precautions necessary in handling FET and
- CMOS devices?
- A. They are susceptible to damage from static charges
- B. They have fragile leads that may break off
- C. They have micro-welded semiconductor junctions that
- are susceptible to breakage
- D. They are light sensitive
- 252. What is the schematic symbol for an N-channel junction FET?
- A B C D
- 253. How does the input impedance of a field-effect transistor
- compare with that of a bipolar transistor?
- A. One cannot compare input impedance without first
- knowing the supply voltage
- B. An FET has low input impedance; a bipolar transistor
- has high input impedance
- C. The input impedance of FETs and bipolar transistors
- is the same
- D. An FET has high input impedance; a bipolar transistor
- has low input impedance
- 254. What are the three terminals of a field-effect transistor?
- A. Gate 1, gate 2, drain
- B. Emitter, base, collector
- C. Emitter, base 1, base 2
- D. Gate, drain, source
- 255. What is the schematic symbol for a P-channel junction FET?
- A B C D
- 256. What are the two basic types of junction field-effect
- transistors?
- A. N-channel and P-channel
- B. High power and low power
- C. MOSFET and GaAsFET
- D. Silicon FET and germanium FET
- 257. What is an operational amplifier?
- A. A high-gain, direct-coupled differential amplifier
- whose characteristics are determined by components external to the
- amplifier unit
- B. A high-gain, direct-coupled audio amplifier whose
- characteristics are determined by components external to the
- amplifier unit
- C. An amplifier used to increase the average output of
- frequency modulated amateur signals to the legal limit
- D. A program subroutine that calculates the gain of an
- RF amplifier
- 258. What is the schematic symbol for an operational amplifier?
- A B C D
- 259. What would be the characteristics of the ideal op-amp?
- A. Zero input impedance, infinite output impedance,
- infinite gain, flat frequency response
- B. Infinite input impedance, zero output impedance,
- infinite gain, flat frequency response
- C. Zero input impedance, zero output impedance, infinite
- gain, flat frequency response
- D. Infinite input impedance, infinite output impedance,
- infinite gain, flat frequency response
- 260. What determines the gain of a closed-loop op-amp circuit?
- A. The external feedback network
- B. The collector-to-base capacitance of the PNP stage
- C. The power supply voltage
- D. The PNP collector load
- 261. What is meant by the term op-amp offset voltage?
- A. The output voltage of the op-amp minus its input
- voltage
- B. The difference between the output voltage of the op-
- amp and the input voltage required in the following stage
- C. The potential between the amplifier-input terminals
- of the op-amp in a closed-loop condition
- D. The potential between the amplifier-input terminals
- of the op-amp in an open-loop condition
- 262. What is the input impedance of a theoretically ideal op-amp?
- A. 100 ohms
- B. 1000 ohms
- C. Very low
- D. Very high
- 263. What is the output impedance of a theoretically ideal op-
- amp?
- A. Very low
- B. Very high
- C. 100 ohms
- D. 1000 ohms
- 264. What is a phase-locked loop circuit?
- A. An electronic servo loop consisting of a ratio
- detector, reactance modulator, and voltage-controlled oscillator
- B. An electronic circuit also known as a monostable
- multivibrator
- C. An electronic circuit consisting of a precision push-
- pull amplifier with a differential input
- D. An electronic servo loop consisting of a phase
- detector, a low-pass filter and voltage-controlled oscillator
- 265. What functions are performed by a phase-locked loop?
- A. Wideband AF and RF power amplification
- B. Comparison of two digital input signals, digital
- pulse counter
- C. Photovolatic conversion, optical coupling
- D. Frequency synthesis, FM demodulation
- 266. A circuit compares the output from a voltage-controlled
- oscillator and a frequency standard. The difference between the
- two frequencies produces an error voltage that changes the voltage-
- controlled oscillator frequency. What is the name of the circuit?
- A. A doubly balanced mixer
- B. A phase-locked loop
- C. A differential voltage amplifier
- D. A variable frequency oscillator
- 267. What do the initials TTL stand for?
- A. Resistor-transistor logic
- B. Transistor-transistor logic
- C. Diode-transistor logic
- D. Emitter-coupled logic
- 268. What is the recommended power supply voltage for TTL series
- integrated circuits?
- A. 12.00 volts
- B. 50.00 volts
- C. 5.00 volts
- D. 13.60 volts
- 269. What logic state do the inputs of a TTL device assume if
- they are left open?
- A. A high logic state
- B. A low logic state
- C. The device becomes randomized and will not provide
- consistent high or low logic states
- D. Open inputs on a TTL device are ignored
- 270. What level of input voltage is high in a TTL device
- operating with a 5-volt power supply?
- A. 2.0 to 5.5 volts
- B. 1.5 to 3.0 volts
- C. 1.0 to 1.5 volts
- D. -5.0 to -2.0 volts
- 271. What level of input voltage is low in a TTL device operating
- with a 5-volt power supply?
- A. -2.0 to -5.5 volts
- B. 2.0 to 5.5 volts
- C. -0.6 to 0.8 volts
- D. -0.8 to 0.4 volts
- 272. Why do circuits containing TTL devices have several bypass
- capacitors per printed circuit board?
- A. To prevent RFI to receivers
- B. To keep the switching noise within the circuit, thus
- eliminating RFI
- C. To filter out switching harmonics
- D. To prevent switching transients from appearing on the
- supply line
- 273. What is a CMOS IC?
- A. A chip with only P-channel transistors
- B. A chip with P-channel and N-channel transistors
- C. A chip with only N-channel transistors
- D. A chip with only bipolar transistors
- 274. What is one major advantage of CMOS over other devices?
- A. Small size
- B. Low current consumption
- C. Low cost
- D. Ease of circuit design
- 275. Why do CMOS digital integrated circuits have high immunity
- to noise on the input signal or power supply?
- A. Larger bypass capacitors are used in CMOS circuit
- design
- B. The input switching threshold is about two times the
- power supply voltage
- C. The input switching threshold is about one-half the
- power supply voltage
- D. Input signals are stronger
- 276. What is the name for a vacuum tube that is commonly found in
- television cameras used for amateur television?
- A. A traveling-wave tube
- B. A klystron tube
- C. A vidicon tube
- D. A cathode-ray tube
- 277. How is the electron beam deflected in a vidicon?
- A. By varying the beam voltage
- B. By varying the bias voltage on the beam forming grids
- inside the tube
- C. By varying the beam current
- D. By varying electromagnetic fields
- 278. What type of CRT deflection is better when high-frequency
- waves are to be displayed on the screen?
- A. Electromagnetic
- B. Tubular
- C. Radar
- D. Electrostatic
- 279. What is a flip-flop circuit?
- A. A binary sequential logic element with one stable
- state
- B. A binary sequential logic element with eight stable
- states
- C. A binary sequential logic element with four stable
- states
- D. A binary sequential logic element with two stable
- states
- 280. How many bits of information can be stored in a single flip-
- flop circuit?
- A. 1
- B. 2
- C. 3
- D. 4
- 281. What is a bistable multivibrator circuit?
- A. An "AND" gate
- B. An "OR" gate
- C. A flip-flop
- D. A clock
- 282. How many output changes are obtained for every two trigger
- pulses applied to the input of a bistable T flip-flop circuit?
- A. No output level changes
- B. One output level change
- C. Two output level changes
- D. Four output level changes
- 283. The frequency of an AC signal can be divided electronically
- by what type of digital circuit?
- A. A free-running multivibrator
- B. An OR gate
- C. A bistable multivibrator
- D. An astable multivibrator
- 284. What type of digital IC is also known as a latch?
- A. A decade counter
- B. An OR gate
- C. A flip-flop
- D. An op-amp
- 285. How many flip-flops are required to divide a signal
- frequency by 4?
- A. 1
- B. 2
- C. 4
- D. 8
- 286. What is an astable multivibrator?
- A. A circuit that alternates between two stable states
- B. A circuit that alternates between a stable state and
- an unstable state
- C. A circuit set to block either a 0 pulse or a 1 pulse
- and pass the other
- D. A circuit that alternates between two unstable states
- 287. What is a monostable multivibrator?
- A. A circuit that can be switched momentarily to the
- opposite binary state and then returns after a set time to its
- original state
- B. A "clock" circuit that produces a continuous square
- wave oscillating between 1 and 0
- C. A circuit designed to store one bit of data in either
- the 0 or the 1 configuration
- D. A circuit that maintains a constant output voltage,
- regardless of variations in the input voltage
- 288. What is an AND gate?
- A. A circuit that produces a logic "1" at its output
- only if all inputs are logic "1"
- B. A circuit that produces a logic "0" at its output
- only if all inputs are logic "1"
- C. A circuit that produces a logic "1" at its output if
- only one input is a logic "1"
- D. A circuit that produces a logic "1" at its output if
- all inputs are logic "0"
- 289. What is the schematic symbol for an AND gate?
- A B C D
- 290. What is a NAND gate?
- A. A circuit that produces a logic "0" at its output
- only when all inputs are logic "0"
- B. A circuit that produces a logic "1" at its output
- only when all inputs are logic "1"
- C. A circuit that produces a logic "0" at its output if
- some but not all of its inputs are logic "1"
- D. A circuit that produces a logic "0" at its output
- only when all inputs are logic "1"
- 291. What is the schematic symbol for a NAND gate?
- A B C D
- 292. What is an OR gate?
- A. A circuit that produces a logic "1" at its output if
- any input is logic "1"
- B. A circuit that produces a logic "0" at its output if
- any input is logic "1"
- C. A circuit that produces a logic "0" at its output if
- all inputs are logic "1"
- D. A circuit that produces a logic "1" at its output if
- all inputs are logic "0"
- 293. What is the schematic symbol for an OR gate?
- A B C D
- 294. What is a NOR gate?
- A. A circuit that produces a logic "0" at its output
- only if all inputs are logic "0"
- B. A circuit that produces a logic "1" at its output
- only if all inputs are logic "1"
- C. A circuit that produces a logic "0" at its output if
- any or all inputs are logic "1"
- D. A circuit that produces a logic "1" at its output if
- some but not all of its inputs are logic "1"
- 295. What is the schematic symbol for a NOR gate?
- A B C D
- 296. What is a NOT gate?
- A. A circuit that produces a logic "O" at its output
- when the input is logic "1" and vice versa
- B. A circuit that does not allow data transmission when
- its input is high
- C. A circuit that allows data transmission only when its
- input is high
- D. A circuit that produces a logic "1" at its output
- when the input is logic "1" and vice versa
- 297. What is the schematic symbol for a NOT gate?
- A B C D
- 298. What is a truth table?
- A. A table of logic symbols that indicate the high logic
- states of an op-amp
- B. A diagram showing logic states when the digital
- device's output is true
- C. A list of input combinations and their corresponding
- outputs that characterizes a digital device's function
- D. A table of logic symbols that indicates the low logic
- states of an op-amp
- 299. In a positive-logic circuit, what level is used to represent
- a logic 1?
- A. A low level
- B. A positive-transition level
- C. A negative-transition level
- D. A high level
- 300. In a positive-logic circuit, what level is used to represent
- a logic 0?
- A. A low level
- B. A positive-transition level
- C. A negative-transition level
- D. A high level
- 301. In a negative-logic circuit, what level is used to represent
- a logic 1?
- A. A low level
- B. A positive-transition level
- C. A negative-transition level
- D. A high level
- 302. In a negative-logic circuit, what level is used to represent
- a logic 0?
- A. A low level
- B. A positive-transition level
- C. A negative-transition level
- D. A high level
- 303. What is a crystal-controlled marker generator?
- A. A low-stability oscillator that "sweeps" through a
- band of frequencies
- B. An oscillator often used in aircraft to determine the
- craft's location relative to the inner and outer markers at
- airports
- C. A high-stability oscillator whose output frequency
- and amplitude can be varied over a wide range
- D. A high-stability oscillator that generates a series
- of reference signals at known frequency intervals
- 304. What additional circuitry is required in a 100-kHz crystal-
- controlled marker generator to provide markers at 50 and 25 kHz?
- A. An emitter-follower
- B. Two frequency multipliers
- C. Two flip-flops
- D. A voltage divider
- 305. What is the purpose of a prescaler circuit?
- A. It converts the output of a JK flip-flop to that of
- an RS flip-flop
- B. It multiplies an HF signal so a low-frequency counter
- can display the operating frequency
- C. It prevents oscillation in a low frequency counter
- circuit
- D. It divides an HF signal so a low-frequency counter
- can display the operating frequency
- 306. What does the accuracy of a frequency counter depend on?
- A. The internal crystal reference
- B. A voltage-regulated power supply with an unvarying
- output
- C. Accuracy of the AC input frequency to the power
- supply
- D. Proper balancing of the power-supply diodes
- 307. How many states does a decade counter digital IC have?
- A. 6
- B. 10
- C. 15
- D. 20
- 308. What is the function of a decade counter digital IC?
- A. Decode a decimal number for display on a seven-
- segment LED display
- B. Produce one output pulse for every ten input pulses
- C. Produce ten output pulses for every input pulse
- D. Add two decimal numbers
- 309. What are the advantages of using an op-amp instead of LC
- elements in an audio filter?
- A. Op-amps are more rugged and can withstand more abuse
- than can LC elements
- B. Op-amps are fixed at one frequency
- C. Op-amps are available in more styles and types than
- are LC elements
- D. Op-amps exhibit gain rather than insertion loss
- 310. What determines the gain and frequency characteristics of an
- op-amp RC active filter?
- A. Values of capacitances and resistances built into the
- op-amp
- B. Values of capacitances and resistances external to
- the op-amp
- C. Voltage and frequency of DC input to the op-amp power
- supply
- D. Regulated DC voltage output from the op-amp power
- supply
- 311. What are the principle uses of an op-amp RC active filter in
- amateur circuitry?
- A. Op-amp circuits are used as high-pass filters to
- block RFI at the input to receivers
- B. Op-amp circuits are used as low-pass filters between
- transmitters and transmission lines
- C. Op-amp circuits are used as filters for smoothing
- power-supply output
- D. Op-amp circuits are used as audio filters for
- receivers
- 312. What type of capacitors should be used in an op-amp RC
- active filter circuit? A. Electrolytic
- B. Disc ceramic
- C. Polystyrene
- D. Paper dielectric
- 313. How can unwanted ringing and audio instability be prevented
- in a multisection op-amp RC audio filter circuit?
- A. Restrict both gain and Q
- B. Restrict gain, but increase Q
- C. Restrict Q, but increase gain
- D. Increase both gain and Q
- 314. Where should an op-amp RC active audio filter be placed in
- an amateur receiver?
- A. In the IF strip, immediately before the detector
- B. In the audio circuitry immediately before the speaker
- or phone jack
- C. Between the balanced modulator and frequency
- multiplier
- D. In the low-level audio stages
- 315. What parameter must be selected when designing an audio
- filter using an op-amp?
- A. Bandpass characteristics
- B. Desired current gain
- C. Temperature coefficient
- D. Output-offset overshoot
- 316. What two factors determine the sensitivity of a receiver?
- A. Dynamic range and third-order intercept
- B. Cost and availability
- C. Intermodulation distortion and dynamic range
- D. Bandwidth and noise figure
- 317. What is the limiting condition for sensitivity in a
- communications receiver?
- A. The noise floor of the receiver
- B. The power-supply output ripple
- C. The two-tone intermodulation distortion
- D. The input impedance to the detector
- 318. What is the theoretical minimum noise floor of a receiver
- with a 400-Hertz bandwidth?
- A. -141 dBm
- B. -148 dBm
- C. -174 dBm
- D. -180 dBm
- 319. How can selectivity be achieved in the front-end circuitry
- of a communications receiver?
- A. By using an audio filter
- B. By using a preselector
- C. By using an additional RF amplifier stage
- D. By using an additional IF amplifier stage
- 320. A receiver selectivity of 2.4 kHz in the IF circuitry is
- optimum for what type of amateur signals?
- A. CW
- B. SSB voice
- C. Double-sideband AM voice
- D. FSK RTTY
- 321. What occurs during A1A reception if too narrow a filter
- bandwidth is used in the IF stage of a receiver?
- A. Undesired signals will reach the audio stage
- B. Output-offset overshoot
- C. Cross-modulation distortion
- D. Filter ringing
- 322. What degree of selectivity is desirable in the IF circuitry
- of an amateur emission F1B receiver?
- A. 100 Hz
- B. 300 Hz
- C. 6000 Hz
- D. 2400 Hz
- 323. A receiver selectivity of 10 kHz in the IF circuitry is
- optimum for what type of amateur signals?
- A. SSB voice
- B. Double-sideband AM
- C. CW
- D. FSK RTTY
- 324. What degree of selectivity is desirable in the IF circuitry
- of an emission J3E receiver?
- A. 1 kHz
- B. 2.4 kHz
- C. 4.2 kHz
- D. 4.8 kHz
- 325. What is an undesirable effect of using too wide a filter
- bandwidth in the IF section of a receiver?
- A. Output-offset overshoot
- B. Undesired signals will reach the audio stage
- C. Thermal-noise distortion
- D. Filter ringing
- 326. How should the filter bandwidth of a receiver IF section
- compare with the bandwidth of a received signal?
- A. Filter bandwidth should be slightly greater than the
- received-signal bandwidth
- B. Filter bandwidth should be approximately half the
- received- signal bandwidth
- C. Filter bandwidth should be approximately two times
- the received-signal bandwidth
- D. Filter bandwidth should be approximately four times
- the received-signal bandwidth
- 327. What degree of selectivity is desirable in the IF circuitry
- of an emission F3E receiver?
- A. 1 kHz
- B. 2.4 kHz
- C. 4.2 kHz
- D. 15 kHz
- 328. How can selectivity be achieved in the IF circuitry of a
- communications receiver?
- A. Incorporate a means of varying the supply voltage to
- the local oscillator circuitry
- B. Replace the standard JFET mixer with a bipolar
- transistor followed by a capacitor of the proper value
- C. Remove AGC action from the IF stage and confine it to
- the audio stage only
- D. Incorporate a high-Q filter
- 329. What is meant by the dynamic range of a communications
- receiver?
- A. The number of kHz between the lowest and the highest
- frequency to which the receiver can be tuned
- B. The maximum possible undistorted audio output of the
- receiver, referenced to one milliwatt
- C. The ratio between the minimum discernible signal and
- the largest tolerable signal without causing audible distortion
- products
- D. The difference between the lowest-frequency signal
- and the highest-frequency signal detectable without moving the
- tuning knob
- 330. What is the term for the ratio between the largest tolerable
- receiver input signal and the minimum discernible signal?
- A. Intermodulation distortion
- B. Noise floor
- C. Noise figure
- D. Dynamic range
- 331. What type of problems are caused by poor dynamic range in a
- communications receiver?
- A. Cross-modulation of the desired signal and
- desensitization from strong adjacent signals
- B. Oscillator instability requiring frequent retuning,
- and loss of ability to recover the opposite sideband, should it be
- transmitted
- C. Cross-modulation of the desired signal and
- insufficient audio power to operate the speaker
- D. Oscillator instability and severe audio distortion of
- all but the strongest received signals
- 332. The ability of a communications receiver to perform well in
- the presence of strong signals outside the amateur band of interest
- is indicated by what parameter?
- A. Noise figure
- B. Blocking dynamic range
- C. Signal-to-noise ratio
- D. Audio output
- 333. What is meant by the term noise figure of a communications
- receiver?
- A. The level of noise entering the receiver from the
- antenna
- B. The relative strength of a received signal 3 kHz
- removed from the carrier frequency
- C. The level of noise generated in the front end and
- succeeding stages of a receiver
- D. The ability of a receiver to reject unwanted signals
- at frequencies close to the desired one
- 334. Which stage of a receiver primarily establishes its noise
- figure?
- A. The audio stage
- B. The IF strip
- C. The RF stage
- D. The local oscillator
- 335. What is an inverting op-amp circuit?
- A. An operational amplifier circuit connected such that
- the input and output signals are 180 degrees out of phase
- B. An operational amplifier circuit connected such that
- the input and output signals are in phase
- C. An operational amplifier circuit connected such that
- the input and output signals are 90 degrees out of phase
- D. An operational amplifier circuit connected such that
- the input impedance is held at zero, while the output impedance is
- high
- 336. What is a noninverting op-amp circuit?
- A. An operational amplifier circuit connected such that
- the input and output signals are 180 degrees out of phase
- B. An operational amplifier circuit connected such that
- the input and output signals are in phase
- C. An operational amplifier circuit connected such that
- the input and output signals are 90 degrees out of phase
- D. An operational amplifier circuit connected such that
- the input impedance is held at zero while the output impedance is
- high
- 337. What voltage gain can be expected from the circuit in Figure
- 4BG-5 when R1 is 1000 ohms and Rf is 100 kilohms?
- A. 0.1
- B. 1
- C. 10
- D. 100
- 338. What voltage gain can be expected from the circuit in Figure
- 4BG-5 when R1 is 1800 ohms and Rf is 68 kilohms?
- A. 1
- B. 0.03
- C. 38
- D. 76
- 339. What voltage gain can be expected from the circuit in Figure
- 4BG-5 when R1 is 3300 ohms and Rf is 47 kilohms?
- A. 28
- B. 14
- C. 7
- D. 0.07
- 340. What voltage gain can be expected from the circuit in Figure
- 4BG-5 when R1 is 10 ohms and Rf is 47 kilohms?
- A. 0.00021
- B. 9400
- C. 4700
- D. 2350
- 341. How does the gain of a theoretically ideal operational
- amplifier vary with frequency?
- A. The gain increases linearly with increasing frequency
- B. The gain decreases linearly with increasing frequency
- C. The gain decreases logarithmically with increasing
- frequency
- D. The gain does not vary with frequency
- 342. What determines the input impedance in a FET common-source
- amplifier?
- A. The input impedance is essentially determined by the
- resistance between the drain and substrate
- B. The input impedance is essentially determined by the
- resistance between the source and drain
- C. The input impedance is essentially determined by the
- gate biasing network
- D. The input impedance is essentially determined by the
- resistance between the source and substrate
- 343. What determines the output impedance in a FET common-source
- amplifier?
- A. The output impedance is essentially determined by the
- drain resistor
- B. The output impedance is essentially determined by the
- input impedance of the FET
- C. The output impedance is essentially determined by the
- drain-supply voltage
- D. The output impedance is essentially determined by the
- gate supply voltage
- 344. What frequency range will be tuned by the circuit in Figure
- 4BG-7 when L is 10 microhenrys, Cf is 156 picofarads, and Cv is 50
- picofarads maximum and 2 picofarads minimum?
- A. 3508 through 4004 kHz
- B. 6998 through 7360 kHz
- C. 13.396 through 14.402 MHz
- D. 49.998 through 54.101 MHz
- 345. What frequency range will be tuned by the circuit in Figure
- 4BG-7 when L is 30 microhenrys, Cf is 200 picofarads, and Cv is 80
- picofarads maximum and 10 picofarads minimum?
- A. 1737 through 2005 kHz
- B. 3507 through 4004 kHz
- C. 7002 through 7354 kHz
- D. 14.990 through 15.020 MHz
- 346. What is the purpose of a bypass capacitor?
- A. It increases the resonant frequency of the circuit
- B. It removes direct current from the circuit by
- shunting DC to ground
- C. It removes alternating current by providing a low
- impedance path to ground
- D. It acts as a voltage divider
- 347. What is the purpose of a coupling capacitor?
- A. It blocks direct current and passes alternating
- current
- B. It blocks alternating current and passes direct
- current
- C. It increases the resonant frequency of the circuit
- D. It decreases the resonant frequency of the circuit
- 348. In a pulse-width modulation system, what parameter does the
- modulating signal vary?
- A. Pulse duration
- B. Pulse frequency
- C. Pulse amplitude
- D. Pulse intensity
- 349. What is the type of modulation in which the modulating
- signal varies the duration of the transmitted pulse?
- A. Amplitude modulation
- B. Frequency modulation
- C. Pulse-width modulation
- D. Pulse-height modulation
- 350. In a pulse-position modulation system, what parameter does
- the modulating signal vary?
- A. The number of pulses per second
- B. Both the frequency and amplitude of the pulses
- C. The duration of the pulses
- D. The time at which each pulse occurs
- 351. Why is the transmitter peak power in a pulse modulation
- system much greater than its average power?
- A. The signal duty cycle is less than 100%
- B. The signal reaches peak amplitude only when voice-
- modulated
- C. The signal reaches peak amplitude only when voltage
- spikes are generated within the modulator
- D. The signal reaches peak amplitude only when the
- pulses are also amplitude-modulated
- 352. What is one way that voice is transmitted in a pulse-width
- modulation system?
- A. A standard pulse is varied in amplitude by an amount
- depending on the voice waveform at that instant
- B. The position of a standard pulse is varied by an
- amount depending on the voice waveform at that instant
- C. A standard pulse is varied in duration by an amount
- depending on the voice waveform at that instant
- D. The number of standard pulses per second varies
- depending on the voice waveform at that instant
- 353. What digital code consists of elements having unequal
- length?
- A. ASCII
- B. AX.25
- C. Baudot
- D. Morse code
- 354. What digital communications system is well suited for
- meteor-scatter communications?
- A. ACSSB
- B. AMTOR
- C. Packet radio
- D. Spread spectrum
- 355. The International Organization for Standardization has
- developed a seven-level reference model for a packet-radio
- communications structure. What level is responsible for the actual
- transmission of data and handshaking signals?
- A. The physical layer
- B. The transport layer
- C. The communications layer
- D. The synchronization layer
- 356. The International Organization for Standardization has
- developed a seven-level reference model for a packet-radio
- communications structure. What level arranges the bits into frames
- and controls data flow?
- A. The transport layer
- B. The link layer
- C. The communications layer
- D. The synchronization layer
- 357. What is one advantage of using the ASCII code, with its
- larger character set, instead of the Baudot code?
- A. ASCII includes built-in error-correction features
- B. ASCII characters contain fewer information bits than
- Baudot characters
- C. It is possible to transmit upper and lower case text
- D. The larger character set allows store-and-forward
- control characters to be added to a message
- 358. What type of error control system does Mode A AMTOR use?
- A. Each character is sent twice
- B. The receiving station checks the calculated frame
- check sequence (FCS) against the transmitted FCS
- C. Mode A AMTOR does not include an error control system
- D. The receiving station automatically requests repeats
- when needed
- 359. What type of error control system does Mode B AMTOR use?
- A. Each character is sent twice
- B. The receiving station checks the calculated frame
- check sequence (FCS) against the transmitted FCS
- C. Mode B AMTOR does not include an error control system
- D. The receiving station automatically requests repeats
- when needed
- 360. What is the duration of a 45-baud Baudot RTTY data pulse?
- A. 11 milliseconds
- B. 40 milliseconds
- C. 31 milliseconds
- D. 22 milliseconds
- 361. What is the duration of a 45-baud Baudot RTTY start pulse?
- A. 11 milliseconds
- B. 22 milliseconds
- C. 31 milliseconds
- D. 40 milliseconds
- 362. What is the duration of a 45-baud Baudot RTTY stop pulse?
- A. 11 milliseconds
- B. 18 milliseconds
- C. 31 milliseconds
- D. 40 milliseconds
- 363. What is the primary advantage of AMTOR over Baudot RTTY?
- A. AMTOR characters contain fewer information bits than
- Baudot characters
- B. AMTOR includes an error detection system
- C. Surplus radioteletype machines that use the AMTOR
- code are readily available
- D. Photographs can be transmitted using AMTOR
- 364. What is the necessary bandwidth of a 170-Hertz shift, 45-
- baud Baudot emission F1B transmission?
- A. 45 Hz
- B. 250 Hz
- C. 442 Hz
- D. 600 Hz
- 365. What is the necessary bandwidth of a 170-Hertz shift, 45-
- baud Baudot emission J2B transmission?
- A. 45 Hz
- B. 249 Hz
- C. 442 Hz
- D. 600 Hz
- 366. What is the necessary bandwidth of a 170-Hertz shift, 74-
- baud Baudot emission F1B transmission?
- A. 250 Hz
- B. 278 Hz
- C. 442 Hz
- D. 600 Hz
- 367. What is the necessary bandwidth of a 170-Hertz shift, 74-
- baud Baudot emission J2B transmission?
- A. 250 Hz
- B. 278 Hz
- C. 442 Hz
- D. 600 Hz
- 368. What is the necessary bandwidth of a 13-WPM international
- Morse code emission A1A transmission?
- A. Approximately 13 Hz
- B. Approximately 26 Hz
- C. Approximately 52 Hz
- D. Approximately 104 Hz
- 369. What is the necessary bandwidth of a 13-WPM international
- Morse code emission J2A transmission?
- A. Approximately 13 Hz
- B. Approximately 26 Hz
- C. Approximately 52 Hz
- D. Approximately 104 Hz
- 370. What is the necessary bandwidth of a 1000-Hertz shift, 1200-
- baud ASCII emission F1D transmission?
- A. 1000 Hz
- B. 1200 Hz
- C. 440 Hz
- D. 2400 Hz
- 371. What is the necessary bandwidth of a 4800-Hertz frequency
- shift, 9600-baud ASCII emission F1D transmission?
- A. 15.36 kHz
- B. 9.6 kHz
- C. 4.8 kHz
- D. 5.76 kHz
- 372. What is the necessary bandwidth of a 4800-Hertz frequency
- shift, 9600-baud ASCII emission J2D transmission?
- A. 15.36 kHz
- B. 9.6 kHz
- C. 4.8 kHz
- D. 5.76 kHz
- 373. What is the necessary bandwidth of a 5-WPM international
- Morse code emission A1A transmission?
- A. Approximately 5 Hz
- B. Approximately 10 Hz
- C. Approximately 20 Hz
- D. Approximately 40 Hz
- 374. What is the necessary bandwidth of a 5-WPM international
- Morse code emission J2A transmission?
- A. Approximately 5 Hz
- B. Approximately 10 Hz
- C. Approximately 20 Hz
- D. Approximately 40 Hz
- 375. What is the necessary bandwidth of a 170-Hertz shift, 110-
- baud ASCII emission F1B transmission?
- A. 304 Hz
- B. 314 Hz
- C. 608 Hz
- D. 628 Hz
- 376. What is the necessary bandwidth of a 170-Hertz shift, 110-
- baud ASCII emission J2B transmission?
- A. 304 Hz
- B. 314 Hz
- C. 608 Hz
- D. 628 Hz
- 377. What is the necessary bandwidth of a 170-Hertz shift, 300-
- baud ASCII emission F1D transmission?
- A. 0 Hz
- B. 0.3 kHz
- C. 0.5 kHz
- D. 1.0 kHz
- 378. What is the necessary bandwidth for a 170-Hertz shift, 300-
- baud ASCII emission J2D transmission?
- A. 0 Hz
- B. 0.3 kHz
- C. 0.5 kHz
- D. 1.0 kHz
- 379. What is amplitude compandored single sideband?
- A. Reception of single sideband with a conventional CW
- receiver
- B. Reception of single sideband with a conventional FM
- receiver
- C. Single sideband incorporating speech compression at
- the transmitter and speech expansion at the receiver
- D. Single sideband incorporating speech expansion at the
- transmitter and speech compression at the receiver
- 380. What is meant by compandoring?
- A. Compressing speech at the transmitter and expanding
- it at the receiver
- B. Using an audio-frequency signal to produce pulse-
- length modulation
- C. Combining amplitude and frequency modulation to
- produce a single-sideband signal
- D. Detecting and demodulating a single-sideband signal
- by converting it to a pulse-modulated signal
- 381. What is the purpose of a pilot tone in an amplitude
- compandored single sideband system?
- A. It permits rapid tuning of a mobile receiver
- B. It replaces the suppressed carrier at the receiver
- C. It permits rapid change of frequency to escape high-
- powered interference
- D. It acts as a beacon to indicate the present
- propagation characteristic of the band
- 382. What is the approximate frequency of the pilot tone in an
- amplitude compandored single sideband system?
- A. 1 kHz
- B. 5 MHz
- C. 455 kHz
- D. 3 kHz
- 383. How many more voice transmissions can be packed into a given
- frequency band for amplitude compandored single sideband systems
- over conventional emission F3E systems?
- A. 2
- B. 4
- C. 8
- D. 16
- 384. What term describes a wide-bandwidth communications system
- in which the RF carrier varies according to some predetermined
- sequence?
- A. Amplitude compandored single sideband
- B. AMTOR
- C. Time-domain frequency modulation
- D. Spread spectrum communication
- 385. What is the term used to describe a spread spectrum
- communications system where the center frequency of a conventional
- carrier is altered many times per second in accordance with a
- pseudo-random list of channels?
- A. Frequency hopping
- B. Direct sequence
- C. Time-domain frequency modulation
- D. Frequency compandored spread spectrum
- 386. What term is used to describe a spread spectrum
- communications system in which a very fast binary bit stream is
- used to shift the phase of an RF carrier?
- A. Frequency hopping
- B. Direct sequence
- C. Binary phase-shift keying
- D. Phase compandored spread spectrum
- 387. What is the term for the amplitude of the maximum positive
- excursion of a signal as viewed on an oscilloscope?
- A. Peak-to-peak voltage
- B. Inverse peak negative voltage
- C. RMS voltage
- D. Peak positive voltage
- 388. What is the term for the amplitude of the maximum negative
- excursion of a signal as viewed on an oscilloscope?
- A. Peak-to-peak voltage
- B. Inverse peak positive voltage
- C. RMS voltage
- D. Peak negative voltage
- 389. What is the easiest voltage amplitude dimension to measure
- by viewing a pure sine wave signal on an oscilloscope?
- A. Peak-to-peak voltage
- B. RMS voltage
- C. Average voltage
- D. DC voltage
- 390. What is the relationship between the peak-to-peak voltage
- and the peak voltage amplitude in a symmetrical wave form?
- A. 1:1
- B. 2:1
- C. 3:1
- D. 4:1
- 391. What input-amplitude parameter is valuable in evaluating the
- signal-handling capability of a Class A amplifier?
- A. Peak voltage
- B. Average voltage
- C. RMS voltage
- D. Resting voltage
- 392. What is an isotropic radiator?
- A. A hypothetical, omnidirectional antenna
- B. In the northern hemisphere, an antenna whose
- directive pattern is constant in southern directions
- C. An antenna high enough in the air that its directive
- pattern is substantially unaffected by the ground beneath it
- D. An antenna whose directive pattern is substantially
- unaffected by the spacing of the elements
- 393. When is it useful to refer to an isotropic radiator?
- A. When comparing the gains of directional antennas
- B. When testing a transmission line for standing wave
- ratio
- C. When (in the northern hemisphere) directing the
- transmission in a southerly direction
- D. When using a dummy load to tune a transmitter
- 394. What theoretical reference antenna provides a comparison for
- antenna measurements?
- A. Quarter-wave vertical
- B. Yagi
- C. Bobtail curtain
- D. Isotropic radiator
- 395. What purpose does an isotropic radiator serve?
- A. It is used to compare signal strengths (at a distant
- point) of different transmitters
- B. It is used as a reference for antenna gain
- measurements
- C. It is used as a dummy load for tuning transmitters
- D. It is used to measure the standing-wave-ratio on a
- transmission line
- 396. How much gain does a 1/2-wavelength dipole have over an
- isotropic radiator?
- A. About 1.5 dB
- B. About 2.1 dB
- C. About 3.0 dB
- D. About 6.0 dB
- 397. How much gain does an antenna have over a 1/2-wavelength
- dipole when it has 6 dB gain over an isotropic radiator?
- A. About 3.9 dB
- B. About 6.0 dB
- C. About 8.1 dB
- D. About 10.0 dB
- 398. How much gain does an antenna have over a 1/2-wavelength
- dipole when it has 12 dB gain over an isotropic radiator?
- A. About 6.1 dB
- B. About 9.9 dB
- C. About 12.0 dB
- D. About 14.1 dB
- 399. What is the antenna pattern for an isotropic radiator?
- A. A figure-8
- B. A unidirectional cardioid
- C. A parabola
- D. A sphere
- 400. What type of directivity pattern does an isotropic radiator
- have?
- A. A figure-8
- B. A unidirectional cardioid
- C. A parabola
- D. A sphere
- 401. What is the radiation pattern of two 1/4-wavelength vertical
- antennas spaced 1/2 wavelength apart and fed 180 degrees out of
- phase?
- A. Unidirectional cardioid
- B. Omnidirectional
- C. Figure-8 broadside to the antennas
- D. Figure-8 end-fire in line with the antennas
- 402. What is the radiation pattern of two 1/4-wavelength vertical
- antennas spaced 1/4 wavelength apart and fed 90 degrees out of
- phase?
- A. Unidirectional cardioid
- B. Figure-8 end-fire
- C. Figure-8 broadside
- D. Omnidirectional
- 403. What is the radiation pattern of two 1/4-wavelength vertical
- antennas spaced 1/2 wavelength apart and fed in phase?
- A. Omnidirectional
- B. Cardioid unidirectional
- C. Figure-8 broadside to the antennas
- D. Figure-8 end-fire in line with the antennas
- 404. How far apart should two 1/4-wavelength vertical antennas be
- spaced in order to produce a figure-8 pattern that is broadside to
- the plane of the verticals when fed in phase?
- A. 1/8 wavelength
- B. 1/4 wavelength
- C. 1/2 wavelength
- D. 1 wavelength
- 405. How many 1/2 wavelengths apart should two 1/4-wavelength
- vertical antennas be spaced to produce a figure-8 pattern that is
- in line with the vertical antennas when they are fed 180 degrees
- out of phase?
- A. One half wavelength apart
- B. Two half wavelengths apart
- C. Three half wavelengths apart
- D. Four half wavelengths apart
- 406. What is the radiation pattern of two 1/4-wavelength vertical
- antennas spaced 1/4 wavelength apart and fed 180 degrees out of
- phase?
- A. Omnidirectional
- B. Cardioid unidirectional
- C. Figure-8 broadside to the antennas
- D. Figure-8 end-fire in line with the antennas
- 407. What is the radiation pattern for two 1/4-wavelength
- vertical antennas spaced 1/8 wavelength apart and fed 180 degrees
- out of phase?
- A. Omnidirectional
- B. Cardioid unidirectional
- C. Figure-8 broadside to the antennas
- D. Figure-8 end-fire in line with the antennas
- 408. What is the radiation pattern for two 1/4-wavelength
- vertical antennas spaced 1/8 wavelength apart and fed in phase?
- A. Omnidirectional
- B. Cardioid unidirectional
- C. Figure-8 broadside to the antennas
- D. Figure-8 end-fire in line with the antennas
- 409. What is the radiation pattern for two 1/4-wavelength
- vertical antennas spaced 1/4 wavelength apart and fed in phase?
- A. Substantially unidirectional
- B. Elliptical
- C. Cardioid unidirectional
- D. Figure-8 end-fire in line with the antennas
- 410. What is a resonant rhombic antenna?
- A. A unidirectional antenna, each of whose sides is
- equal to half a wavelength and which is terminated in a resistance
- equal to its characteristic impedance
- B. A bidirectional antenna open at the end opposite that
- to which the transmission line is connected and with each side
- approximately equal to one wavelength
- C. An antenna with an LC network at each vertex (other
- than that to which the transmission line is connected) tuned to
- resonate at the operating frequency
- D. A high-frequency antenna, each of whose sides
- contains traps for changing the resonance to match the band in use
- 411. What is a nonresonant rhombic antenna?
- A. A unidirectional antenna terminated in a resistance
- equal to its characteristic impedance
- B. An open-ended bidirectional antenna
- C. An antenna resonant at approximately double the
- frequency of the intended band of operation
- D. A horizontal triangular antenna consisting of two
- adjacent sides and the long diagonal of a resonant rhombic antenna
- 412. What are the advantages of a nonresonant rhombic antenna?
- A. Wide frequency range, high gain and high front-to-
- back ratio
- B. High front-to-back ratio, compact size and high gain
- C. Unidirectional radiation pattern, high gain and
- compact size
- D. Bidirectional radiation pattern, high gain and wide
- frequency range
- 413. What are the disadvantages of a nonresonant rhombic antenna?
- A. It requires a large area for proper installation and
- has a narrow bandwidth
- B. It requires a large area for proper installation and
- has a low front-to-back ratio
- C. It requires a large amount of aluminum tubing and has
- a low front-to-back ratio
- D. It requires a large area and four sturdy supports for
- proper installation
- 414. What is the characteristic impedance at the input of a
- nonresonant rhombic antenna?
- A. 50 to 55 ohms
- B. 70 to 75 ohms
- C. 300 to 350 ohms
- D. 700 to 800 ohms
- 415. What is the effect of a terminating resistor on a rhombic
- antenna?
- A. It reflects the standing waves on the antenna
- elements back to the transmitter
- B. It changes the radiation pattern from essentially
- bidirectional to essentially unidirectional
- C. It changes the radiation pattern from horizontal to
- vertical polarization
- D. It decreases the ground loss
- 416. What should be the value of the terminating resistor on a
- rhombic antenna?
- A. About 50 ohms
- B. About 75 ohms
- C. About 800 ohms
- D. About 1800 ohms
- 417. What factors determine the receiving antenna gain required
- at an amateur station in earth operation?
- A. Height, transmitter power and antennas of satellite
- B. Length of transmission line and impedance match
- between receiver and transmission line
- C. Preamplifier location on transmission line and
- presence or absence of RF amplifier stages
- D. Height of earth antenna and satellite orbit
- 418. What factors determine the EIRP required by an amateur
- station in earth operation?
- A. Satellite antennas and height, satellite receiver
- sensitivity
- B. Path loss, earth antenna gain, signal-to-noise ratio
- C. Satellite transmitter power and orientation of ground
- receiving antenna
- D. Elevation of satellite above horizon, signal-to-noise
- ratio, satellite transmitter power
- 419. What factors determine the EIRP required by an amateur
- station in telecommand operation?
- A. Path loss, earth antenna gain, signal-to-noise ratio
- B. Satellite antennas and height, satellite receiver
- sensitivity
- C. Satellite transmitter power and orientation of ground
- receiving antenna
- D. Elevation of satellite above horizon, signal-to-noise
- ratio, satellite transmitter power
- 420. How does the gain of a parabolic dish type antenna change
- when the operating frequency is doubled?
- A. Gain does not change
- B. Gain is multiplied by 0.707
- C. Gain increases 6 dB
- D. Gain increases 3 dB
- 421. What happens to the beamwidth of an antenna as the gain is
- increased?
- A. The beamwidth increases geometrically as the gain is
- increased
- B. The beamwidth increases arithmetically as the gain is
- increased
- C. The beamwidth is essentially unaffected by the gain
- of the antenna
- D. The beamwidth decreases as the gain is increased
- 422. What is the beamwidth of a symmetrical pattern antenna with
- a gain of 20 dB as compared to an isotropic radiator?
- A. 10.1 degrees
- B. 20.3 degrees
- C. 45.0 degrees
- D. 60.9 degrees
- 423. What is the beamwidth of a symmetrical pattern antenna with
- a gain of 30 dB as compared to an isotropic radiator?
- A. 3.2 degrees
- B. 6.4 degrees
- C. 37 degrees
- D. 60.4 degrees
- 424. What is the beamwidth of a symmetrical pattern antenna with
- a gain of 15 dB as compared to an isotropic radiator?
- A. 72 degrees
- B. 52 degrees
- C. 36.1 degrees
- D. 3.61 degrees
- 425. What is the beamwidth of a symmetrical pattern antenna with
- a gain of 12 dB as compared to an isotropic radiator?
- A. 34.8 degrees
- B. 45.0 degrees
- C. 58.0 degrees
- D. 51.0 degrees
- 426. How is circular polarization produced using linearly-
- polarized antennas?
- A. Stack two Yagis, fed 90 degrees out of phase, to form
- an array with the respective elements in parallel planes
- B. Stack two Yagis, fed in phase, to form an array with
- the respective elements in parallel planes
- C. Arrange two Yagis perpendicular to each other, with
- the driven elements in the same plane, and fed 90 degrees out of
- phase
- D. Arrange two Yagis perpendicular to each other, with
- the driven elements in the same plane, and fed in phase
- 427. Why does an antenna system for earth operation (for
- communications through a satellite) need to have rotators for both
- azimuth and elevation control?
- A. In order to point the antenna above the horizon to
- avoid terrestrial interference
- B. Satellite antennas require two rotators because they
- are so large and heavy
- C. In order to track the satellite as it orbits the
- earth
- D. The elevation rotator points the antenna at the
- satellite and the azimuth rotator changes the antenna polarization
- 428. What term describes a method used to match a high-impedance
- transmission line to a lower impedance antenna by connecting the
- line to the driven element in two places, spaced a fraction of a
- wavelength on each side of the driven element center?
- A. The gamma matching system
- B. The delta matching system
- C. The omega matching system
- D. The stub matching system
- 429. What term describes an unbalanced feed system in which the
- driven element is fed both at the center of that element and a
- fraction of a wavelength to one side of center?
- A. The gamma matching system
- B. The delta matching system
- C. The omega matching system
- D. The stub matching system
- 430. What term describes a method of antenna impedance matching
- that uses a short section of transmission line connected to the
- antenna feed line near the antenna and perpendicular to the feed
- line?
- A. The gamma matching system
- B. The delta matching system
- C. The omega matching system
- D. The stub matching system
- 431. What should be the approximate capacitance of the resonating
- capacitor in a gamma matching circuit on a 1/2-wavelength dipole
- antenna for the 20-meter band?
- A. 70 pF
- B. 140 pF
- C. 200 pF
- D. 0.2 pF
- 432. What should be the approximate capacitance of the resonating
- capacitor in a gamma matching circuit on a 1/2-wavelength dipole
- antenna for the 10-meter band?
- A. 70 pF
- B. 140 pF
- C. 200 pF
- D. 0.2 pF
- 433. What kind of impedance does a 1/8-wavelength transmission
- line present to a generator when the line is shorted at the far
- end?
- A. A capacitive reactance
- B. The same as the characteristic impedance of the line
- C. An inductive reactance
- D. The same as the input impedance to the final
- generator stage
- 434. What kind of impedance does a 1/8-wavelength transmission
- line present to a generator when the line is open at the far end?
- A. The same as the characteristic impedance of the line
- B. An inductive reactance
- C. A capacitive reactance
- D. The same as the input impedance of the final
- generator stage
- 435. What kind of impedance does a 1/4-wavelength transmission
- line present to a generator when the line is shorted at the far
- end?
- A. A very high impedance
- B. A very low impedance
- C. The same as the characteristic impedance of the
- transmission line
- D. The same as the generator output impedance
- 436. What kind of impedance does a 1/4-wavelength transmission
- line present to a generator when the line is open at the far end?
- A. A very high impedance
- B. A very low impedance
- C. The same as the characteristic impedance of the line
- D. The same as the input impedance to the final
- generator stage
- 437. What kind of impedance does a 3/8-wavelength transmission
- line present to a generator when the line is shorted at the far
- end?
- A. The same as the characteristic impedance of the line
- B. An inductive reactance
- C. A capacitive reactance
- D. The same as the input impedance to the final
- generator stage
- 438. What kind of impedance does a 3/8-wavelength transmission
- line present to a generator when the line is open at the far end?
- A. A capacitive reactance
- B. The same as the characteristic impedance of the line
- C. An inductive reactance
- D. The same as the input impedance to the final
- generator stage
- 439. What kind of impedance does a 1/2-wavelength transmission
- line present to a generator when the line is shorted at the far
- end?
- A. A very high impedance
- B. A very low impedance
- C. The same as the characteristic impedance of the line
- D. The same as the output impedance of the generator
- 440. What kind of impedance does a 1/2-wavelength transmission
- line present to a generator when the line is open at the far end?
- A. A very high impedance
- B. A very low impedance
- C. The same as the characteristic impedance of the line
- D. The same as the output impedance of the generator