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| Text File | 1985-03-12 | 61.1 KB | 1,025 lines |
- 12 BROADBAND 80 MTR INVERTED VEE 1 6608 45
- 20 CLASSIC BEVERAGE ANTENNA-REVISITED 1 6601 11
- 20 BEVERAGE ANTENNAS 1 6701 22
- 20 THE BEVERAGE ANTENNA 3 1710 106
- 20 SIX ANTENNAS FM THREE WIRES 4 277 10
- 27 2 MTR BEVERAGE ANTENNA 4 272 54
- 30 EFFECT OF REAL GROUND ON ANTENNAS PT 2 1 6804 34
- 30 EFFICIENT GROUND SYSTEMS FOR VERTICALS 1 6702 20
- 30 EFFECT OF REAL GROUND-PART 3 1 6806 30
- 30 EFFECT OF REAL GROUND ON ANTENNAS PT 1 1 6802 15
- 30 EFFECTS OF REAL GROUND PT 4 1 6808 31
- 30 INV "V" OVER REAL GROUND 1 6808 48
- 30 EFFECTIVE GROUNDS PRIMER 2 3808 34
- 30 VERTICALS OVER REAL GROUND 3 1701 35
- 30 INSTALLING EFFECTIVE GROUND SYSTEMS 3 1609 67
- 30 GROUND ROD RESISTANCE 3 1707 95
- 40 NBS YAGI CONSTRUCTION GUIDELINES 1 6608 34
- 40 EXTENDED-ELEMENT BEAM 1 6712 35
- 40 YAGI ELEMENT MOUNTING ADVICES 1 6703 43
- 40 TREE MOUNTED VERTICAL YAGI ARRAY 2 3808 30
- 40 HF YAGI PT 9 2 3802 72
- 40 6 BAND PARALLEL VERTICALS 2 3908 20
- 40 HF YAGI CONTSTUCTION TECH PT III 2 3804 108
- 40 HR52, 5 BAND 2 EL BEAM 2 3904 32
- 40 HF YAGI PT II 2 3803 73
- 40 APPLIED YAGI DESIGN PT 6 3 1710 89
- 40 KEY TO 3 ELEMENT YAGI DESIGN 3 1703 48
- 40 APPLIED YAGI DESIGN PT 4 3 1708 103
- 40 APPLIED YAGI DESIGN PT 5 3 1709 93
- 40 K2GNC ROTARY "GROUND PLANE" 3 1710 106
- 40 APPLIED YAGI ANTENNA DESIGN PT 3 3 1707 73
- 46 CHEAP, EASY 10 MTR BEAM 2 4006 32
- 47 2 MTR FIVE ELEMENT YAGI 2 4002 63
- 47 5 FOR 2 2 MTR YAGI 2 3812 34
- 47 BREAKDOWN BEAM 4 284 46
- 47 BIDIRECTIONAL YAGI 4 267 24
- 47 METAL BOOM QUAGI 5 9 3
- 48 432 YAGI FOR $9 1 6604 22
- 49 INEXPENSIVE 30 METER BEAM ANTENNA 1 6706 39
- 50 NOTES ON PATH LOSS ANALYSIS 1 6605 42
- 50 USING QST PROPAGATION CHARTS 1 6704 63
- 50 LOOKING DOWN ON THE AURORA 1 6711 15
- 50 HF PROPAGATION-THE BASICS 1 6712 11
- 50 SPORADIC-E OPENINGS ON VHF 1 6607 44
- 50 USING GREAT CIRCLE MAPS FOR DXING 1 6806 54
- 50 THEORY FOR LONG RANGE PROPAGATION 1 6605 42
- 50 TROPOSPHERIC SCATTER PROPAGATION 1 6711 43
- 50 RADIO ASTRONOMY 1 6706 47
- 50 FIELD ALIGNED IRREGULARITIES AT 144 MHZ 1 6601 30
- 50 WEATHER THAT BRINGS VHF DX 1 6705 11
- 50 DX AND THE BREWSTER ANGLE 1 6705 43
- 50 VHF PROPAGATION AND METEOROLOGY 1 6803 30
- 50 SPORADIC E ON 144MC 1 6802 23
- 50 ARTIFICIAL RADIO AURORA 1 6804 41
- 50 CHORDAL HOP PROPAGATION 1 6810 42
- 50 PRIMER ON HF PROPAGATION 2 4004 104
- 50 ALL NITE IONOSPHERIC ILLUM W/LARGE SATEL 2 3904 24
- 50 FINDING THE TERMINATOR 2 3804 114
- 50 IMPROVING METEOR SCATTER COMMUNICATIONS 3 1706 82
- 50 PROPAGATION OF RADIO WAVES 3 1508 26
- 50 THE RADIATION OF RADIO SIGNALS 3 1506 27
- 50 DIGITAL IONOSONDES 3 1612 14
- 50 NEW BAND PROPAGATION 3 1601 12
- 50 VHF METEOR SCATTER COMMUNICATIONS 3 1702 69
- 50 VHF/UHF PROPAGATION PRIMER 3 1707 14
- 50 GRAYLINE PROPAGATION 3 1708 77
- 50 160 MTR GRAYLINE PROPAGATION 4 289 66
- 50 PROPAGATION VS ANTENNA HEIGHT 4 289 38
- 50 220 MHZ PROPAGATION 4 275 90
- 50 METEOR SHOWER PROPAGATION 4 282 90
- 50 EQPT FOR CW METEOR SCATTER OPERATION 5 21 4
- 80 3 IDEAS FOR HT ANTENNA IMPROVEMENT 3 1605 42
- 90 HORIZONTAL X BEAMS FOR 15 AND 20 1 6703 33
- 90 DOUBLE D WIRE BEAM 1 6810 21
- 90 TWO BAND DELTA LOOP ANTENNA 1 6703 36
- 90 HALF DELTA LOOP ANALYSIS 1 6609 28
- 90 FULL WAVE DELTA LOOP AT LOW HEIGHT 1 6810 24
- 90 HALF TWIN DELTA LOOP ARRAY 1 6704 39
- 90 DUAL FULL WAVE LOOP ANTENNA 1 6603 27
- 90 USE OF BAMBOO POLES FOR QUADS 2 4004 98
- 90 PRIMER QUBICAL QUAD PT III 2 3804 54
- 90 GROUNDED HALF QUAD LOOP 2 4004 37
- 90 LOOP ANTENNAS EXPLAINED 2 4008 36
- 90 4 EL DOUBLE DRIVEN QUAD 2 3912 30
- 90 7 BAND BOOMLESS QUAD 2 3804 17
- 90 A QUAD OWNER SWITCHES 3 1505 12
- 90 4Z4RS TWO BAND QUAD LOOP 3 1704 77
- 90 THE HALF DELTA LOOP 3 1505 37
- 90 THE K7CW QUAD 3 1509 36
- 90 GROUNDPLANE LOOP ANTENNA 3 1702 63
- 90 AUSSIE PARASOL BEAM 4 289 20
- 90 PARASTAT LOOP 4 272 24
- 90 THE GERMAN QUAD 4 260 76
- 92 RECTANGULAR HALF DELTA LOOP 1 6807 26
- 93 40 MTR QUAD THE EASY WAY 1 6606 40
- 93 40 MTRS WITH A PHASED DELTA LOOP 1 6805 20
- 93 40 MTR LAZY LOOP 4 272 56
- 97 QUADRAQUAD-CIRCULAR POLAR 2 MTS 1 6804 16
- 97 CHEAP TWO MTR PVC QUAD 4 284 37
- 97 CORNERLESS QUAD FOR TWO METERS 4 272 30
- 100 SHUNT FED TOWERS 1 6610 21
- 100 TOWER FEED WITH GAMMA MATCH 1 6603 49
- 100 TRAP FOR SHUNT FED TOWERS 1 6806 40
- 120 BOBTAIL CURTAIN AND INVERTED GROUND PLAN 3 1602 82
- 120 BOBTAIL CURTAIN-PRACTICAL DX SIGNAL GAIN 3 1603 28
- 120 AMAZING BOBTAILS 4 257 30
- 140 NOTES ON HALF SLOPER ANTENNA 1 6606 51
- 140 UPDATE ON SLOPERS 1 6809 40
- 140 QUARTER WAVE SLOPER ANTENNA 2 3910 38
- 140 3/4 WAVELENGTH EXTENDED SLOPER 4 277 40
- 142 1/2 WAVE SLOPER W/REFLECTOR 3 1710 48
- 150 NOTES ON COAXIAL BALUNS 1 6706 41
- 150 SOME ASPECTS OF THE BALUN PROBLEM 1 6703 38
- 150 WHEN IS A BALUN A BALUN 1 6608 52
- 150 ANOTHER BALUN DESIGN 3 1505 54
- 150 TESTING BALUNS 3 1608 30
- 160 GOOD STATION LAYOUT 1 6807 16
- 160 STATION SET UP MADE SIMPLE 1 6611 42
- 170 WARC BANDS AND 160 MTRS FOR 75S1 1 6601 22
- 170 RIT FOR KWM2 3 1707 109
- 180 BALANCED ANTENNA MATCHING 1 6802 48
- 180 HALF FOLDED DIPOLE MATCH FOR YAGI ANTENN 1 6802 47
- 180 HAIRPIN MATCH FOR COLLINEAR ARRAY 1 6810 39
- 180 REMOTE ANTENNA MATCHING 1 6607 14
- 180 LIMITATIONS TO BROADBAND MATCHING 1 6807 45
- 180 EASY ANTENNA MATCHING 3 1705 67
- 180 MATCHING DIPOLE ANTENNAS 3 1705 129
- 190 MODIFYING CB SYNTHESIZER FOR HAM USE 1 6703 21
- 190 FREQ SYNTHSIZER FOR HT'S 1 6604 29
- 190 CALIBRATE 2 MTR SYNTHESIZER W/GEN COV RC 1 6605 30
- 190 DIGITAL FREQUENCY SYNTHESIZER 1 6804 24
- 190 RF SYNTHESIZERS FOR HF COMMUNICATIONS PA 3 1609 48
- 190 RF SYNTHESIZERS FORHF COMMUNICATIONS 3 1610 17
- 190 RF SYNTHESIZERS FOR HF COMMUNICATIONS PT 3 1608 12
- 190 DESIGN OF VHF AND UHF SYNTHESIZERS 3 1507 26
- 190 FREQ SYNTH BY VXO HARMONIC SELECTION 3 1702 12
- 200 DEVEL AND CONSTRUCTION OF VEE BEAM ANTEN 2 3908 28
- 207 2 MTR VEE ANTENNA 3 1701 86
- 210 ANTENNA GAIN MEASUREMENTS PT 1 1 6611 35
- 210 MEASURING AC CURRENT 1 6702 55
- 210 ANTENNA GAIN MEASURMENTS PT 2 1 6612 27
- 210 MEASURING Z W/REFLECTION COEFFIENT BRIDG 1 6703 30
- 210 FREQ STANDARD ACCURACY 1 6603 49
- 210 BEGINNER'S LOOK AT RF POWER MEASUREMENT 1 6708 35
- 210 HOW TO MEET NEW POWER RULES 2 3902 26
- 210 HOW TO CHECK MODULATION ON CONVERTED CB 2 3906 93
- 210 SSB MODUALTION MONITORING PT 1 2 3810 36
- 210 MEASURING IND AND CAP WITH DVM OR VTVM 2 3801 92
- 210 SSB MODULATION MONITORING PT II 2 3812 26
- 210 TIME AND FREQ STANDARDS PAT I 3 1611 36
- 210 MEASURING NOISE FIGURES 3 1701 26
- 210 MEASURING PEP OUTPUT POWER 3 1606 10
- 210 VHF/UHF FREQ CALIBRATION 3 1710 55
- 210 TIME AND FREQ STANDARDS PART II 3 1612 31
- 210 L&C MEASUREMENTS 3 1710 117
- 210 ELECTRICAL CALIBRATION STANDARDS 3 1610 10
- 210 MEASURING LARGE AC CURRENTS 4 267 108
- 210 FINDING COAX FAULTS 4 289 10
- 210 DB MEASURING METER 4 263 72
- 210 FREQUENCY COUNTING PT 1 4 287 40
- 210 EASY TO BUILD NOISE BRIDGE 4 289 28
- 210 SECONDARY TIME STANDARD CLOCK 5 8 3
- 211 COMPUTERIZED FREQUENCY COUNTER 1 6804 31
- 211 AMPLIFIER FOR HIGH Z VOLTMETERS 1 6712 40
- 211 BASICS OF EQUIPMENT SERVICING 1 6602 40
- 211 SIMPLE LC AUDIO OSCILLATOR 1 6606 24
- 211 VOLTAGE SENSITIVE BRIDGES 1 6708 48
- 211 BUILD A RESISTANCE DECADE BOX 1 6701 36
- 211 A SIMPLE FUNCTION GENERATOR 1 6805 38
- 211 BASICS OF EQUIPMENT SERVICING 1 6601 38
- 211 OHMMETER WITH A LINEAR SCALE 1 6611 38
- 211 HF ADAPTER FOR NARROW BANDWIDTH SCOPES 1 6602 49
- 211 WATTMETER TUTORIAL 1 6709 33
- 211 EXPANDED SCALE METERS 1 6807 43
- 211 IMPRVED METERING FOR LINEAR,SELF CAL OHM 1 6802 48
- 211 SEMICONDUCTOR TESTING 1 6612 24
- 211 BASICS OF EQUIPMENT SERVICING 1 6603 40
- 211 LINEAR SELF CALIBRATING OHMETER 1 6709 28
- 211 NEW IDEAS FOR THE VHF WATTMETER 1 6710 11
- 211 A SIMPLE L-C METER 1 6702 26
- 211 MICROPROCESSOR LC METER 1 6610 24
- 211 RESISTANCE BRIDGE 1 6706 21
- 211 CRYSTAL CONTROLLED Q METER 1 6805 11
- 211 MEASURE L AND C-REFLECTION COEFF BRIDGE 1 6605 28
- 211 MICROPROCESSOR LC METER PT 1 1 6609 14
- 211 SIMPLE CAPACITANCE METER 1 6701 34
- 211 BUILD A RESONANCE DETECTOR 2 3908 40
- 211 PRACTICAL FUNCTION GENERATOR 2 4005 36
- 211 SSB MODULATION MONITOR/MULTI FUNCTION TE 2 4002 48
- 211 CHEAP AND EASY NOISE BRIDGE 2 4005 56
- 211 ANTENNA NULL MTR FOR ANTENNA TUNERS 2 3908 58
- 211 BUILD YOUR OWN ANTENNA BRIDGE 2 4001 34
- 211 3 1/2 DIGIT DVM 2 3803 44
- 211 PEAK READING LED RF WATTMETER 2 3908 48
- 211 HANDHELD OPTICAL SPECTRUM ANALYZER 3 1704 23
- 211 HP-IB TEST INTRUMENT BUSS SIMPLIFIED 3 1703 65
- 211 INDUCTANCE METER 3 1504 76
- 211 A MODERN NOISE BRIDGE 3 1603 50
- 211 TIME DOMAIN REFLECTOMETER 3 1611 49
- 211 LOGIC MATE 3 1601 57
- 211 SIMPLE TESTS FOR TTL IC'S 3 1503 37
- 211 WIDE RANGE OHMMETER 3 1701 53
- 211 PANARAMIC ADAPTOR/SPECTRUM ANALYZER 3 1602 26
- 211 HIGH QUALITY 2 TONE OSCILLATOR 4 287 21
- 211 10 MHZ FREQ SOURCE 4 274 32
- 211 SIMPLE FM DEVIATION METER 4 281 36
- 211 Q METER FOR TESTING COILS 4 280 70
- 211 POOR MAN'S SPECTRUM ANALYZER 4 263 10
- 211 SHAWNEE LOGIC PROBE 4 277 66
- 211 BUILD ANTENNA ANALYZER 4 257 16
- 211 CHECKER FOR BARGAIN DIODS 4 256 30
- 211 TRANSISTOR TESTER 4 285 34
- 211 TIMER, COUNTER, LOGIC PROBE 4 266 10
- 211 AUDIO SIGNAL GENERATOR 4 267 116
- 211 SIMPLE DV METER 4 285 26
- 211 PULSE GENERATOR 4 268 100
- 211 MEASURING OHMS W/CALCULATOR 4 259 28
- 211 L METER BUFFER 4 279 94
- 211 NOISE BRIDGE CALIBRATION 4 272 64
- 211 OSCILLOSCOPE AND SIGNAL MONITOR 4 283 20
- 211 AN IMPROVED RX IMPEDANCE BRIDGE 5 24 5
- 212 DIRECTION FINDING 1 6803 34
- 212 HF DIRECTION FINDING 1 6806 42
- 212 UPDATE DOUBLE DUCKY DF 1 6605 15
- 212 BUZZ FINDING LOOP ANTENNAS 4 268 56
- 230 ANTENNAS FOR 14 THRU 30 MHZ 3 1708 96
- 230 BROADBAND 80/160 MTR ANTENNA 3 1703 53
- 230 VERY BROADBAND CAGE ANTENNA 3 1704 76
- 230 WIDEBAND DOUBLET 4 256 104
- 232 BROADBAND 80 MTR DIPOLE 1 6704 22
- 232 INCREDIBLE BROADBAND BOWTIE 4 289 26
- 240 VERTICAL ANTENNAS WORK! 1 6803 46
- 240 DECOUPLE VHF VERTICALS 1 6604 46
- 240 IMPROVING VERTICAL EFFICIENCY 2 4004 24
- 240 DESIGNING A 2 BAND LOADED VERTICAL 2 4004 46
- 240 HI EFFICIENCY TOP LOADED VERTICAL 3 1710 65
- 240 SHORT VERTICALS FOR LOW BANDS PT 1 3 1605 36
- 240 VERTICAL PHASED ARRAYS PART 4 3 1610 34
- 240 VERTICAL PHASED ARRAYS PT 2 3 1606 24
- 240 GROUNDED MONOPOLE W/ELEVATED FEED 3 1605 87
- 240 REMOTE CONTROLLED 40,80,160 MTR VERTICAL 3 1705 38
- 240 DESIGN OF SHORT VERTICAL ANTENNAS FOR TH 3 1606 17
- 240 FOLDED UMBRELLA TOP LOADED VERTICAL 3 1509 12
- 240 VERTICAL PHASED ARRAYS PT 3 3 1607 26
- 240 VERTICAL PHASED ARRAYS PT 5 3 1612 59
- 240 VERTICAL PHASED ARRAYS PT I 3 1605 18
- 240 VERTICAL PHASED ARRAYS PT 6 3 1705 45
- 240 MULTIBAND VERTICAL 4 265 54
- 240 VERTICAL W/TOPHAT 4 264 80
- 249 TREE MOUNTED 30 MTR VERTICAL 1 6809 16
- 250 QRP:MORE THAN A STATE OF MIND 1 6804 52
- 250 QRP VSWR INDICATOR 1 6608 45
- 250 QRP BACKPACK MOBILE 2 3806 58
- 250 80 MTR QRP XCVR 2 3906 13
- 250 THE QRP ARC 2 3905 52
- 250 QRP:RETURN OF OPERATION REPORTS 2 4001 58
- 250 QRP-THOSE WHO HAVE GONE BEFORE 2 3912 84
- 250 30 MTR QRP XCVR 2 3906 76
- 250 UNDER ONE WATT OPERATION,TR SWITCH PROJE 2 4003 56
- 250 PORTABLE QRP THE EASY WAY 2 4006 18
- 250 QRP-WHAT'S IT ALL ABOUT? 2 3806 44
- 250 TTL QRP IN CARD FILE BOX 2 3906 26
- 250 QRP ANTENNA TUNER 2 3806 20
- 250 SIMPLE QRP KEYER 3 1710 82
- 253 40 MTR CUBIC INCHER XMTR 1 6607 34
- 260 LOG YAGIS SIMPLIFIED 3 1605 78
- 270 TJ ANTENNA-COMPACT 160-15 1 6606 18
- 270 80/160 SMALL LOT ANTENNA 1 6609 26
- 270 ANTENNAS FOR THOSE WHO CANT HAVE ANTENNA 1 6702 15
- 270 LOWBANDER'S ONE ANTENNA FARM 1 6602 23
- 270 2 ELEMENT INDOOR ANTENNA 1 6601 48
- 270 BOARDING HOUSE SPECIALS 2 3805 47
- 270 HIDDEN APARTMENT ANTENNA 2 4004 100
- 270 EFFICIENCY OF SHORT ANTENNAS 3 1509 18
- 270 160/80 SHORT, EFFICIENT DIPOLE 3 1709 104
- 270 LIMITED SPACE INVERTED L 3 1706 63
- 270 SIX FOOT STICK ANTENNA 4 272 26
- 270 ANTENNAS FOR CONDOS 4 272 44
- 270 BROADSIDE DIPOLE 4 289 44
- 272 75 MTR CITY LOT SPECIAL 2 3810 40
- 272 80 MTR VERTICAL 4 289 62
- 274 W7EL FD 2 ELEMENT PORTABLE 1 6806 21
- 276 CHEAP 10 MTR APARTMENT ANTENNA 2 3904 44
- 280 BUILDING HELIXS 4 284 64
- 280 HELICOIDS -RUBBER DUCK WHIPS 4 284 40
- 287 END FED DOUBLE ZEPP FOR 2 MTRS 1 6606 34
- 289 HANGING HELIX 30 MTR 4 277 46
- 300 THERMAL DESIGN PRIMER 1 6806 11
- 300 MOSFET KW POWER AMP PT I 1 6612 13
- 300 MOSFET POWER AMPS PART II 1 6701 30
- 300 LINEAR AMP ANTENNA RELAY PROBLEMS 1 6802 47
- 300 AMPLIFIER OUTPUT CAPACITANCE AND GAIN 1 6702 52
- 300 CLASS B OR C POWER MOSFETS CKTS 1 6703 25
- 300 BROADBAND AND NARROW BAND AMPS 1 6805 26
- 300 LOW COST LINEAR DESIGN AND CONSTRUCTION 3 1512 12
- 300 3CX800A7 1500 WATT OUT LINEAR AMP 3 1708 17
- 300 AUDIO TO MICROWAVE AMPLIFIER 3 1703 12
- 300 IMPROVING AMPLIFIER ABC CIRCUITS 3 1709 52
- 300 IMPROVING AMPLIFIER ALC CKTS 3 1708 40
- 300 BIASING CLASS A TRANSISTOR AMPS 3 1508 32
- 300 20 WATT FUN AMP 4 260 32
- 300 NINE TUBE LINEAR 4 256 12
- 300 WIDE BAND INSTRUMENT AMPLIFIER 5 26 4
- 301 160 MTR KW AMP 4 287 70
- 306 10 METER 75W FM AMPLIFIER 1 6701 45
- 306 6 MTR TUBE LINEAR 1 6604 24
- 306 10 MTR EX CB RIG LINEAR AMP 4 279 36
- 307 CATHODE DRIVEN TETRODE FOR 6 MTRS 1 6809 11
- 307 SOLID STATE 6 MTR AMP 1 6605 11
- 307 6 MTR AMPLIFIER 3 1604 72
- 307 ONE WEEKEND TWO MTR AMP 3 1610 50
- 307 POWER FETS FOR VHF AMPLIFIERS 3 1701 12
- 307 TAMING THE TWO MTR LINEAR 4 267 28
- 307 12/70 WATT CLASS C AMP FOR 146 MHZ 5 20 3
- 307 50 MHZ 100 WATT OUT LINEAR 5 5 3
- 308 HIGH POWER AMP FOR 900 MHZ 1 6611 14
- 308 70CM PHASE III TETRODE AMPLIFIER 1 6608 41
- 310 MINIATURE COAXIAL CABLE 1 6709 37
- 310 COAXIAL LINE PRIMER 1 6712 20
- 310 COAXIAL CABLE FOR MICROWAVE USE 1 6804 73
- 310 BELDEN LOW ATTENUATION COAX CABLES 1 6802 29
- 310 UNDERGROUND CABLES 2 3804 48
- 310 THE COAX JUNGLE 3 1701 66
- 310 ELECTRICAL LENGTH OF COAX 4 267 90
- 320 REMOTE CONTROL HF OPERATION 3 1604 32
- 320 REMOTE-SITE RCVRS AND REPEATER OPERATION 3 1601 36
- 320 REMOTE CONTROL W/TELEPHONE 4 267 44
- 320 SECRETS OF REMOTE CONTROL 4 281 18
- 320 TWISTED REMOTE CONTROL 4 270 64
- 330 RCVR PREAMPS-HOW TO USE THEM 1 6804 19
- 330 LOW NOISE PREAMPS 3 1511 36
- 337 BUILD 2 MTR PREAMP AND GATED NOISE SOURC 2 4007 52
- 337 2 MTR PREAMP 4 283 84
- 337 2 MTR PREAMP IN A PIPE 5 10 11
- 338 LOW NOISE PREAMPS FOR 1296 MHZ 1 6606 36
- 338 LOW NOISE PREAMP FOR 2304 MHZ 3 1602 12
- 340 REFINING THE SB104 1 6603 20
- 340 MODS TO HEATH SB614 MONITOR SCOPE 1 6601 36
- 340 160 MTRS FOR SB201 AND SB200 2 4006 51
- 340 RIT FOR SB104 4 265 70
- 340 SB221 TO 10 AND 160 MTRS 4 286 48
- 340 RTTY MOD 6 3205 4
- 340 SB303 RTTY MODS 6 3110 4
- 341 30 MTR CONVERSION FOR HW8 1 6805 44
- 341 SOLID STATE RIGS AND HEATH HD1410 KEYER 1 6704 38
- 341 HIGHER POWER FM HEATH HA-201A 2 MTR AMP 1 6607 37
- 341 HEATH SA-5010 KEYER SHORT 1 6806 41
- 341 VARIABLE BANDWIDTH HW8 1 6604 53
- 341 SECONDS FOR HEATH GC1107 DIGITAL CLOCK 1 6601 49
- 341 HEATH SA 5010 KEYER MODS 1 6607 39
- 341 HR1680 MODS 1 6611 22
- 341 PROGRAMMABLE POWER UP FREQ FOR VF7401 HT 2 3907 40
- 341 HW8 RIT PC BOARD DILEMMA 2 3805 98
- 341 BANDSWITCH LIGHTS FOR HW8 2 3806 46
- 341 FACELIFT FOR HW100 AND HW101 2 4003 13
- 341 MODS TO HEATH MODEL IO-4530 SCOPE 3 1508 20
- 341 HEATH HW8 TO 30 MTRS 4 279 52
- 341 HW101 REMOTE VFO 4 287 46
- 341 F1 FOR HEATH 101 4 264 20
- 342 IMPROVED BYPASS SWR FOR MFJ-984 VERSA TU 1 6802 47
- 343 KENWOOD TS-830S MODS 1 6803 45
- 343 WARC BANDS FOR TS820(S) 1 6702 36
- 343 TS-820 WARC CONVERSION 1 6802 49
- 343 TS820S TO MARS FREQS 1 6706 40
- 343 TS820 SIDETONE MODIFICATIONS 1 6702 54
- 343 DONT FRY YOUR TR2400 2 3801 34
- 343 TS430S AUTOMATIC ANT SELECTOR 2 4008 18
- 343 CONVERTING TS820 TO USE AFSK IN FSK MODE 2 3802 38
- 343 TS-930 KEYING LINEAR AMP 3 1710 111
- 343 R1000 IMPROVING SELECTIVITY 4 269 92
- 343 POLICE FREQS FOR TR2400 4 257 26
- 343 TR7800 SLOW SCAN MOD 4 275 54
- 343 MODS TO KENWOOD R1000 4 258 34
- 343 TS830S ON RTTY 6 3109 N/A
- 343 RTTY MODS FOR TS-930S 6 3208 12
- 343 RTTY W/TS180S 6 3204 N/A
- 344 USING 2 MTR RIGS FOR F2 OPERATION 1 6711 55
- 344 DETUNING SLEEVE FOR RINGO RANGER 1 6705 40
- 344 RETUNE 20 MTR HUSTLER TO 30 MTRS 1 6807 44
- 344 VIC 20 CW INTERFACE 1 6809 39
- 344 FLESHER TU300 MODS 1 6712 38
- 344 DRAKE TR7 DRIFTING 1 6605 36
- 344 AZDEN PCS200O MEMORY MODS 1 6603 53
- 344 UPPER/LOWER CASE RTTY W/VIC20 1 6809 39
- 344 DRAKE TR7 MODS FOR WARC BANDS 1 6607 20
- 344 NEW MIXER FOR ASTRO 103 RCVR 1 6710 41
- 344 AZDEN PCS 2000 IMPROVE BATTERY LIFE 2 3807 88
- 344 MOD TO MINIQUAD INTO 3 EL HQ-1 2 3808 62
- 344 FREQ CONTROL FOR BLIND 2 4010 42
- 344 CUSTOMIZING MACROTRONICS INTERFACE 2 3902 48
- 344 MODS TO HYGAIN T2X ROTATOR 2 4006 96
- 344 SWAN 350C TO 30 MTRS 2 3902 23
- 344 MODE SWITCHING FOR ETO ALPHA 78 2 4001 18
- 344 MODS TO AEA CONTEST KEYER 2 3810 16
- 344 8 CHANNEL MEMORY SCANNER FOR SONY ICF-20 3 1508 54
- 344 BETTER POWER SUPPLY FOR DRAKE R4C 3 1502 28
- 344 AZDEN 2000 MODS 4 275 50
- 344 TEMPO S1 TO MARS CHANNELS 4 266 76
- 344 SPLITS W/KDK FM2015R 4 261 40
- 344 NICADS FOR AZDEN PCS2000 5 11 9
- 344 MODS TO HEATH ET-3400A TRAINER 5 28 3
- 345 KEYING MODS TO ICOM IC-730 1 6607 23
- 345 KEYING IC-701 WITH A FET 1 6711 56
- 345 IC720 COMPUTER CONTROL 1 6807 34
- 345 ICOM IC730 CW FILTERS 1 6606 47
- 345 DUAL PURPOSE ICOM HT BATTERY PACK 2 4007 33
- 345 ADD RESUME SCAN TO IC255A 2 3807 48
- 345 2 WAY POWER FOR IC2AT HT 3 1502 57
- 345 ODD SPLITS FOR IC-2AT 3 1507 64
- 345 MODS TO ICOM R-70 4 285 54
- 345 FINE TUNE IC 280 4 265 68
- 345 ICOM 720A AUTO ANTENNA SWITCHER 4 272 46
- 345 MARS FOR IC-2A 4 257 46
- 345 REMOTE CONTROL IC701 4 266 14
- 345 ICOM IC25A DUAL SPEED VFO AND REMOTE CON 4 279 48
- 345 SCANNING W/IC280 4 259 36
- 345 FSK FOR IC IC730 4 288 48
- 345 CHEAP SCANNING FOR IC701 4 275 64
- 345 DIGITAL CONTROL FOR ICOM 720A 5 26 5
- 346 FASTER AGC RELEASE TIME FOR ARGOSY 1 6711 57
- 346 REDUCING AGC ATTACK TIME IN TEN-TEC OMNI 1 6705 41
- 346 QRP WITH TENTEC TRITON 2 3806 70
- 346 ARGONAUT 509 30 MTR MOD 3 1710 49
- 346 TENTEC OMNI MODS 5 16 3
- 349 COMMODORE KEYBOARDS 1 6809 41
- 350 TELEPHONE RFI CURES 1 6803 44
- 350 TELEPHONE RFI CURE 1 6804 43
- 350 SECRETS OF CORDLESS PHONES 4 286 20
- 360 BLANKING THE WOODPECKER-PT 3 3 1503 22
- 360 EMI/RFI SHIELDING PART 2 3 1702 85
- 360 BLANKING WOODPECKER PT 1 3 1501 20
- 360 NOISE CANCELLATION CIRCUI 3 1703 75
- 360 EMI/RFI SHIELDING PART 1 3 1701 72
- 360 BLANKING WOODPECKER PT 2 3 1502 18
- 370 AUTOMATIC CONTROL ALLIANCE HD73 1 6701 17
- 370 BRAKE PROTECTION FOR HAM IV ROTATOR 1 6604 52
- 370 IMPROVING THE TORQUE OF HAM M ROTATORS 2 3904 88
- 370 ARMSTRONG BEAM ROTATOR 3 1502 68
- 370 PRESET ROTATOR HEADINGS 4 285 60
- 370 LOCAL CONTROL OF ROTATORS 4 277 62
- 370 AUTOMATIC BEAM AIMER 4 266 22
- 380 BIG ANTENNAS ON FIXED TOWERS 1 6603 28
- 380 RAISING BEAM ANTENNAS 1 6706 40
- 380 NOTES ON TOWER ERECTION PHYSICS 1 6604 47
- 380 BUILD A PLYWOOD TOWER 2 4008 25
- 380 ERECTION PRIMER 2 3804 70
- 380 NOTES ON TOWERS AND QUADS 2 3808 22
- 380 ANTENNA CARRAIGE AND TRACK POLE MOUNT 3 1608 46
- 380 TOWER INSTALLATION STURDY AND SAFE 3 1706 22
- 380 MATCH ANTENNA TO TOWER 3 1706 14
- 380 TOWER MAINTENACE KEEPING TOWERS UP 3 1706 26
- 380 HOMEBREW TOWER 4 284 10
- 380 PLEASURES AND PERILS OF CRANK UP TOWERS 4 265 40
- 380 GIN POLE 4 272 58
- 380 ANTENNA RAISING 4 260 42
- 388 LOWCOST UHF TOWER 3 1710 30
- 400 PC BOARD PATTERNS THE EASY WAY 1 6604 53
- 400 DRILLING IC PIN HOLES IN PC BOARDS 1 6810 39
- 400 COPPER FOIL TAPE CIRCUITS 1 6810 39
- 400 PC BOARD PRIMER 2 3810 44
- 400 COPING W/PC BOARDS 4 261 48
- 400 NO ETCH CIRCUIT BOARD 4 288 34
- 400 PC BOARDS FOR PENNY PINCHERS 4 275 30
- 410 PI NETWORK EQUATION 1 6802 48
- 410 TRANSMATCH WITH JUMPERS 1 6607 31
- 410 PI NETWORKS FOR TRANSMATCHES 1 6603 50
- 410 NEW AND BETTER FORMULAS FOR PI AND PI-L 1 6708 23
- 410 STUB MATCHING TABLES 1 6612 53
- 410 BUILD AN L MATCH 1 6603 30
- 410 TRANSMATCH PT II 2 3808 50
- 410 CHEAP AND EASY ANTENNA TUNER 2 3804 52
- 410 MINI KW ANTENNA TUNER 2 3912 26
- 410 TRANSMATCH PT 1 2 3807 70
- 410 TRANSMATCH PT III 2 3809 58
- 410 FULL FEATURE MINI ANTENNA TUNER 2 3806 26
- 410 EASY MATCHING SECTIONS 3 1503 68
- 410 PI,PI-L AND TANDEM 1/4 WAVE MATCHING NET 3 1502 12
- 410 MATCHING 75OHM HARDLINE TO 50 OHM SYSTEM 3 1510 43
- 410 TANDEM PI NETWORKS 3 1507 32
- 410 INDUCTANCE TUNED LOWPASS MATCHING UNIT 3 1505 24
- 410 KC2NT ANTENNA MATCHER 4 287 8
- 410 COAX MATCHER 4 265 84
- 410 TUNER FOR ANTENNA FANATICS 4 266 42
- 410 SERIES LINE MATCHING SECTIONS 5 23 4
- 412 ANTENNA FEED LINES FOR PORTABLE USE 1 6602 51
- 412 OPEN WIRE FEED LINES 2 3808 40
- 412 USING SWR METER TO CHECK FEEDLINE LOSS 4 277 42
- 412 TUNED FEEDERS FOR MULTIBAND CAPABILITY 4 272 38
- 413 RG8/U AND PL259 1 6609 43
- 413 INEXPENSIVE HARDLINE CONNECTORS 3 1605 62
- 413 COAX CONNECTOR WORKSHOP 4 272 60
- 420 VARIABLE AC VOLTAGE SOURCE 1 6808 29
- 430 TUNABLE IF FOR RCVING CONVERTERS 1 6605 32
- 430 WIRELESS 220/2 CONVERTER 3 1501 36
- 430 2 METER WEATHER CONVERTER 3 1612 87
- 430 A FIXED TUNED LF CONVERTER 3 1601 19
- 437 6 MTR RCVING CONVERTER 1 6606 42
- 437 EASY TO BUILD VHF CONVERTER 4 259 68
- 450 YAESU FTV-901R VHF/UHF TRANSVERTER 1 6702 48
- 450 HEATH EE 3404 6809 MICRO COURSE 1 6807 39
- 450 MAGGIORE MK1 220 MHZ REPEATER 1 6602 47
- 450 HEATH IT-2250 CAPACITANCE MTR 1 6602 45
- 450 HEATH HFT-9 ANTENNA TUNER 1 6807 41
- 450 SHERWOOD SE-1 MICROPHONE EQUALIZER 1 6701 42
- 450 FOX TANGO YF-90H1.8 CRYSTAL FILTER 1 6604 50
- 450 MAGGIORE HI PRO MK 1 2M RPTR 1 6808 43
- 450 MFJ-496 SUPER KEYBOARD 1 6607 41
- 450 CES 510SA SMART PATCH 1 6804 47
- 450 HEATH GU-1820 AC POWER SYSTEM 1 6612 46
- 450 RC-850 REPEATER CONTROLLER 1 6802 43
- 450 HEATH SA 2060 TRANSMATCH 1 6607 40
- 450 SPECTRUM COMM SCR 1000 2 MTS FM RPTR 1 6707 42
- 450 TOKYO HY-POWER LABS HC-200 TRANSMATCH 1 6705 38
- 450 DAIWA AF-606K ACTIVE AUDIO FILTER 1 6701 42
- 450 VIBROPLEX BRASS RACER AND EK-1 PADDLES 1 6707 44
- 450 BENCHER XZ-2 ACTIVE FILTER 1 6602 48
- 450 BIRD 4410 THRULINE WATTMETER 1 6710 46
- 450 HEATH HD-8999 ULTRAPRO CW KEYBOARD 1 6804 46
- 450 LANCE JOHNSON D-LAY-5 ROTOR DELAY 1 6704 42
- 450 HAMTRONICS XV-4 TRANSMITTING CONVERTER 1 6601 43
- 450 HEATH ACTIVE AUDIO FILTER HD-1418 1 6803 42
- 450 DATONG PC1 GENERAL COVERAGE ADAPTER 1 6704 43
- 450 HEATH ETS 3401 MICRCOMPUTER TRAINING SYS 1 6609 38
- 450 CUBIC MMBX MATCHBOX 1 6601 44
- 450 VIEWSTAR VS 1500A TRANSMATCH 1 6710 45
- 450 TWIN OAKS MORSE CODE TRAINING PROGRAMS 1 6708 46
- 450 MCKAY DYMEK DA100D ACTIVE ANTENNA 1 6603 46
- 450 N9CR CONTEST RADIO OPERATING SYSTEM 1 6708 47
- 450 MFJ 308 SHORTWAVE CONVERTER 2 3804 206
- 450 TENTEC 229 2 KW ANTENNA TUNER 2 3905 64
- 450 MIRAGE WATTMETERS/SWR UNITS 2 4003 52
- 450 MINI JINE RECORD KEEPER 2 4001 38
- 450 POLAR RESEARCH ROTATING ANTENNA MOUNTS 2 4004 60
- 450 ETO ALPHA 78 LINEAR 2 3812 30
- 450 COAX SEAL ANTENNA PROTECTION 2 3903 42
- 450 VIBROPLEX BRASS RACER AND EK1 2 3902 64
- 450 AEA MOSCOW MUFFLER 2 3902 46
- 450 HEIL EQ200 MICROPHONE EQUALIZER 2 3807 56
- 450 PALOMAR ENGRS M-827 AUTO SWR AND POWER M 2 3905 42
- 450 MFJ STATION CLOCKS 2 3912 62
- 450 RADIOKIT UHF CONVERTER KIT 2 4010 48
- 450 DAIWA POWER/SWR METERS AND TUNERS 2 3804 30
- 450 HAMEG HM203 HM204 DUAL TRACE OSCILLOSCOP 2 3906 32
- 450 HEATH IO-4235 DUAL TRACE 35 MHZ OSCILLOS 2 3905 28
- 450 OAK HILL BREADBOARDS 2 4003 61
- 450 MFJ 989 VERSA TUNER V ANTENNA TUNER 2 3903 36
- 450 MFJ312 DUAL BAND VHF CONVERTER 2 3807 64
- 450 HEATH SB201 AND SB221 LINEAR AMPS 2 3902 36
- 450 RTTY DEMODULATORS 2 3911 20
- 450 HEIL HC-3 MICROPHONE CARTRIDGE 2 3905 86
- 450 HEATHKIT ID4101 ELEC SW & IG4505 SCOPE C 2 3809 52
- 450 SONY ICF2001 2 3803 66
- 450 BIRD 4381 RF POWER ANALYST 2 3907 42
- 450 HALTRONIX 5312 CLOCK KIT 2 3809 34
- 450 ALDEN WEATHER CHART RECORDER KIT 3 1608 82
- 450 PROSEARCH PSE-2N COMPT ANTENNA CONTROL 3 1706 115
- 450 PALOMAR ENGRS P-308 PREAMP 3 1707 114
- 450 AEA DOCTOR DX 3 1710 139
- 450 HAMMEG HM203 OSCILLOSCOPE 4 263 132
- 450 GORDON WEST CODE TAPES 4 274 120
- 450 ASTRON RS7A POWER SUPPLY 4 263 131
- 450 PALOMAR ENGRS PT407 ANTENNA TUNER 4 269 105
- 450 FACSIMILE WEATHER CHART RECORDER-ALDEN 4 269 102
- 450 AUTEK QFA-1 AUDIO FILTER 4 272 116
- 450 HEIL EQ200 MIKE EQUALIZER 4 263 130
- 450 TELTONE M929 TONE DECODER 4 256 121
- 450 N2NY HAM MASTERTAPES 4 284 117
- 450 CES MICRODIALER 4 260 138
- 450 PALOMAR SWR AND POWER MTR 4 265 111
- 450 ICOM IC-RP3010 REPEATER 4 286 82
- 450 TALKMAN C900 PORTABLE XCVR 4 259 123
- 450 TEN TEC 4229 ANTENNA TUNER 4 289 81
- 450 KENWOOD PANADAPTER 4 272 116
- 450 MFJ ECONO TUNER 4 277 110
- 450 SILICON SYSTEMS DTMF DECODER 4 263 131
- 450 MFJ-312 VHF CONVERTER 4 259 121
- 450 NOVICE GUIDE FROM BASH 4 283 129
- 450 ADVANCED COMPUTER CONTROLS REPEATER CONT 4 268 126
- 450 AEA MOSCOW MUFFLER 4 272 120
- 450 BENCHER KEYER PADDLE 4 281 92
- 450 HEATH SA2060 TUNER 4 260 139
- 450 PRIVATE PATCH 4 278 99
- 450 HEIL HC3 MICROPHONE CARTRIDGE 4 272 118
- 451 KENWOOD TR-7730 2 MTR XCVR 1 6605 38
- 451 ICOM IC-290H 2 MTR XCVR 1 6705 36
- 451 ICOM IC720A HF XCVR 1 6608 48
- 451 YAESU FT-ONE HF XCVR 1 6708 42
- 451 YAESU FT-230R 2 MTR FM XCVR 1 6706 43
- 451 ICOM IC-45A 450 MHZ FM XCVR 1 6711 51
- 451 YAESU FT-726R 1 6805 40
- 451 FT-102 HF XCVR 1 6710 43
- 451 ICOM IC25A 2 MTR XCVR 1 6607 41
- 451 YEASU FT-77 HF XCVR 1 6711 49
- 451 YAESU FT-730R 440 MHZ FM XCVR 1 6709 41
- 451 ICOM IC3AT 220 MHZ FM XCVR 1 6702 49
- 451 KENWOOD TS-930S HF XCVR 1 6802 40
- 451 KENWOOD TS-530S HF XCVR 1 6603 45
- 451 ICOM IC-740 HF XCVR 1 6709 39
- 451 AZDEN PCS300 2 MTR HT 1 6609 39
- 451 COLLINS KWM380 XCVR 1 6610 36
- 451 KENWOOD TR8400 UHF FM XCVR 1 6601 45
- 451 TS-430S HF XCVR 1 6803 39
- 451 HEATH HW 5400 HF XCVR 1 6810 34
- 451 KENWOOD TW-4000A 2/70 FM XCVR 1 6808 42
- 451 YAESU FT-708R 450 MHZ FM XCVR 1 6704 41
- 451 YAESU FT-127 220 MHZ FM XCVR 1 6601 42
- 451 HEATH SS-9000 HF XCVR 1 6802 41
- 451 ICOM IC-730 XCVR 1 6612 44
- 451 YAESU FT-680R 6 MTR XCVR 1 6608 50
- 451 ICOM IC 730 2 3901 20
- 451 ICOM IC-271A 2 MTR 2 4007 49
- 451 ICOM IC-751 HF XCVR 2 4009 40
- 451 YAESU FT708R 440 MHZ HT 2 3907 104
- 451 YAESU FT707 HF XCVR 2 3901 92
- 451 YAESU FT-ONE, CONCLUSION 2 3910 42
- 451 SANTEC ST-142 2 MTR HT 2 4005 42
- 451 YAESU FT208R 2 MTR HT 2 3807 40
- 451 YAESU FT-102 2 4006 24
- 451 ICOM IC25A XCVR 2 3809 102
- 451 HEATH SS9000 HF XCVR 2 4002 18
- 451 TENTEC 2 MTR HT 2 4002 46
- 451 TENTEC ARGONAUT 515 2 3803 36
- 451 HEATH HW5400 XCVR 2 3912 18
- 451 ICOM IC02A/T 2 MTR HT 2 4006 40
- 451 YAESU FT107M 2 3805 36
- 451 YAESU FT-ONE, PT I 2 3909 36
- 451 KENWOOD TR7730 2 3802 50
- 451 TENTEC CORSAIR XCVR 2 4001 22
- 451 YAESU FT230R 2 MTR FM XCVR 2 3907 22
- 451 TENTEC ARGOSY 2 3812 46
- 451 HEATH SS9000 3 1511 12
- 451 OWNERS SURVEY-2 MTR HT'S 3 1507 34
- 451 HEATH HW5400 XCVR 3 1702 96
- 451 ICOM 730 XCVR 4 265 101
- 451 ICOM IC290 2 MTR XCVR 4 267 149
- 451 AZDEN PCS 4000 4 270 104
- 451 NCG 10/160 XCVR 4 267 148
- 451 KENWOOD TR9500 4 278 97
- 451 SANTEC HT'S 4 277 109
- 451 ICOM IC490A 430 MHZ XCVR 4 275 120
- 451 YAESU FT-680R XCVR 4 258 142
- 451 HEATHKIT SS9000 4 280 107
- 451 YAESU FT980 XCVR 4 281 90
- 451 KENWOOD TW4000A 4 285 92
- 451 ICOM 751 4 279 109
- 451 ICOM R70 4 269 103
- 451 KENWOOD TS 430S 4 273 102
- 451 ICOM 720A XCVR 4 260 136
- 451 YAESU FT-290 2 MTR MULTIMODE XCVR 4 256 120
- 451 TEN TEC 560 CORSAIR XCVR 4 270 105
- 451 NCG 15 MTR SSB QRP XCVR 4 261 116
- 451 ICOM IC2A 2M FM XCVR 4 262 135
- 451 SANTEC ST142,222,442 4 286 82
- 451 IC271A 2 MTR XCVR 4 288 82
- 451 KENWOOD TR2500 HT 4 261 115
- 451 KDK FM 2025A 2 MTR XCVR 4 257 118
- 451 YAESU FT 102 4 272 116
- 451 KENWOOD TR8400 4 277 108
- 451 ICOM IC4A 440MHZ HT 4 262 133
- 452 ICOM IC-R70 RCVR 1 6706 45
- 452 ICOM R71A GEN COV RCVR 2 4008 38
- 453 JAPAN RADIO NSD-515 HF XMTR 1 6611 45
- 454 KLM 7.2-2 40 MTR YAGI 1 6807 39
- 454 WILSON SYSTEM 40 TRIBANDER 1 6604 49
- 454 CUSHCRAFT A4 TRIBAND YAGI 1 6701 41
- 454 CUSHCRAFT 40-2CD 40 METER SKYWALKER YAGI 1 6707 43
- 454 AEA HOT ROD 2 MTR HAND HELD ANTENNA 1 6711 53
- 454 HYGAIN V-2 2 MTR ANTENNA 1 6605 40
- 454 TET HB-35T TRIBAND ANTENNA 1 6612 47
- 454 KLM 21.021.5-6A BIG STICKER 1 6712 46
- 454 WESTERN ELECTRONICS 998BUA TRAP DIPOLE 1 6611 46
- 454 AUSTIN OMNI 2-M ANTENNA 1 6712 47
- 454 RF PRODUCTS 5/8 220MHZ AND 450 MHZ ANTEN 1 6708 46
- 454 B&W ANTENNAS BNR 2 MTF QUAD ANTENNA 1 6603 48
- 454 TELEX HYGAIN TH7DX BROADBAND 1 6702 51
- 454 WEST JERSEY 80 MTR CAGE 1 6709 43
- 454 AEA ISOPOLE 220MHZ VERTICAL ANTENNA 1 6606 49
- 454 CUSHCRAFT R3 3 BAND VERTICAL ANTENNA 1 6703 45
- 454 CUSHCRAFT 220B 220MHZ BOOMER 1 6708 45
- 454 KLM AP-144DIII BASE STATION VHF ANTENNA 1 6709 43
- 454 CUSHCRAFT 617-6B BOOMER 6 MTR YAGI 1 6609 41
- 454 CENTURION TUF DUCK 2 MTR ANTENNA 1 6602 48
- 454 CUSHCRAFT A743 40/30 MTR ADD ON KIT 1 6603 48
- 454 CUSHCRAFT R3 VERTICAL 2 3904 40
- 454 MULTIBAND ANTENNAS LIMITED SPACE ANTENNA 2 3803 24
- 454 AUSTIN SUPERLITE 2 METER BEAM 2 4001 84
- 454 KLM JV-2 J 2 MTR VERTICAL 2 3904 52
- 454 TET HB43S YAGI ANTENNA 2 3901 38
- 454 LANCE JOHNSON VERT ANNENNA MOUNT 2 4008 84
- 454 BUTTERNUT 2MCV-5 SUPER TROMBONE 2 3910 105
- 454 AEA HR1 HALF WAVE 2 MTR HT ANTENNA 2 3907 58
- 454 BUTTERNUT 2MCV 2 MTR COLLINEAR 2 3904 28
- 454 CUSHCRAFT A4 TRIBANDER 2 4008 28
- 454 KT34, KT34XA KLM BEAMS 2 4009 69
- 454 SNYDER 80 MTR BROADBAND DIPOLE 2 3806 48
- 454 CUSHCRAFT 32-19:19 EL 2 MTR BOOMER 3 1610 90
- 454 THMK-2 BROADBAND THUNDERBIRD 3 1609 88
- 454 HYGAIN EXPLORER 14 3 1701 102
- 454 SNYDER FB 75/80 80 MTR BROADBAND WIRE AN 3 1610 90
- 454 CUSHCRAFT R3 HALF WAVE VERTICAL 4 265 107
- 454 BILAL-ISOTRON 40 4 289 83
- 454 B&W AC 1.8-30 CONTINUOS COVERAGE ANTENNA 4 282 102
- 454 COM-RAD "MOBILE EAR" ANTENNAS 4 266 139
- 454 COMRAD CR2A DDRR MOBILE 4 265 109
- 454 TET DISCONE ANTENNA 4 280 109
- 454 SPIDER MULTIBAND ANTENNA 4 265 106
- 454 B&W AP-10 PORTABLE 4 289 84
- 454 DX HIDDEN ASSETT LOOP ANTENNA 4 281 92
- 454 CUSHCRAFT A3/A73 TRIBANDER 4 274 122
- 454 HYGAIN TH7DX TRIBANDER 4 273 104
- 454 LARSEN MOBILE MOUNT 4 271 102
- 455 MACROTRONICS RM1000 RADIO MODEM 1 6806 36
- 455 KANTRONICS INTERFACE II TU 1 6809 35
- 455 HAL CWR-6850 TELEREADER RTTY/CW TU 1 6705 37
- 455 ROBOT 800 TU 1 6604 48
- 455 KANTRONICS INTERFACE AND SOFTWARE 1 6802 45
- 455 FLESHER TU300 AND 470 TU'S 1 6706 44
- 455 AEA AMT-1 AMTOR TU 1 6711 51
- 455 DGM SRT 3000 SEND/RCV TERMINAL 1 6712 44
- 455 AEA CP-1 COMPUTER PATCH INTERFACE 1 6804 45
- 455 AEA MBA-RC 1 6708 44
- 455 HAL SYSTEM II 2 3811 24
- 455 TIMEKIT BLINKY SSTV/RTTY TUNER 2 3911 52
- 455 AEA MBA READER 2 3907 28
- 455 AEA CP-1 AND AEASOFT 2 3911 86
- 455 CROWN ROM,116 2 3911 62
- 455 FLESHER TU-170A TU 2 3908 24
- 455 DGM ELECTRONICS SRT 3000 TU 4 275 118
- 455 DFD SYSTEMS RT-89 RTTY SYSTEM 4 257 119
- 455 RTTY AND MORSE KANTRONICS AND COMMODORE 4 271 102
- 455 FLESHER TU170 TU 4 264 106
- 455 AMTORSOFT-KANTRONICS 4 287 100
- 455 DRAKE 9000E TU 4 276 90
- 455 AEA CP1 COMPUTER PATCH 4 288 84
- 455 MICROLOG ACT-1 RTTY/CW TU 4 259 120
- 455 AEA MBA READER 4 273 103
- 455 AEA MBA READER 4 256 119
- 455 INFOTECH M500ASR 4 264 99
- 455 MBATEXT-AEA 4 287 100
- 455 AEA AMTOR TU 4 278 98
- 455 HAL CT-2100 INTERFACE 6 3106 8
- 456 CURTIS LIL' BUGGER 1 6603 47
- 456 MBA-RO CODE READER 1 6708 45
- 456 HEATH MEMORY KEYER SA 5010 1 6605 40
- 456 AEA BT-1P CODE TRAINER 1 6702 50
- 456 LOGISTICS FIRE-FIST 1000 CW SYSTEM 1 6704 43
- 456 AEA KT-2 KEYER TRAINER 1 6712 45
- 456 MICROCRAFT CODE*STAR READER KIT 1 6707 44
- 456 KANTRONICS SIGNAL ENFORCER 1 6602 46
- 456 MICROWAVE MODULES MMS1,MMS2 CW TRAINERS 1 6806 38
- 456 MICROWAVE MODULES MORSE TALKER 4 256 125
- 456 AEA CODE TRAINER 4 270 104
- 456 AEA KT2 KEYER TRAINER 4 274 120
- 456 AEA CK2 MEMORY KEYER 4 269 105
- 456 DAIWA DK210 ELECTRONIC KEYER 4 264 109
- 456 MFJ CW COMPUTER INTERFACE 4 264 103
- 456 CURTIS K5 KEYER 4 258 143
- 456 HEATH ULTRAPRO CW KEYBOARD 4 276 94
- 456 HEATH SA5010 KEYER 4 261 117
- 456 THOMPSON SOFTWARE MORSE TRANSLATOR 4 285 92
- 457 HEATH VL2280 2 MTR BASE STN AMP 1 6606 48
- 457 MIRAGE A1015 6M AMP 1 6808 45
- 457 HEATH HL-2200 AMP KIT 1 6711 53
- 457 HEATH VL-1180 2 MTR AMP 1 6605 39
- 457 VIEWSTAR PT-2000A HF LINEAR AMPLIFIER 1 6802 43
- 457 HEATH VL1180 VHF AMP 4 262 136
- 460 DTMF EASY-CEIVER 1 6601 25
- 460 SELECTIVE CALLING ENCODER/DECODER 1 6606 20
- 460 MFJ-202B RF NOISE BRIDGE 2 4008 50
- 460 BUILD A MICROPHONE EQUALIZER 2 4007 24
- 460 BUILD AUTODIALER FOR VHF MOBILE 2 3907 18
- 460 SIMPLE ID TIMER 2 3805 24
- 460 UNIVERSAL TUNING REMINDER 2 3903 46
- 460 PORTABLE TOUCHTONE AUTODIALER 3 1508 12
- 460 ZERO BEAT INDICATOR FOR XCVRS 3 1603 88
- 460 IMPROVED TOUCHTONE DECODER 3 1512 24
- 460 THE ULTIMATE TONE DECODER 3 1509 33
- 460 STATE OF THE ART AUTO DIALER 3 1612 21
- 460 STATE OF ART TOUCHTONE DECODER 3 1604 27
- 460 THE SIMPLEX AUTOPATCH 3 1601 42
- 460 BUILD A REFLECTED POWER LIMITER 3 1707 63
- 460 2 MTR TRANSVERTER 3 1501 24
- 460 LINEAR TRANSLATORS 3 1609 14
- 460 MINUTEMAN ID TIMER 4 281 14
- 460 AUDIO ACCESSORIES EXPLORED 4 257 64
- 460 ID TIMER 4 279 78
- 460 CROSSLINKING ADAPATER BOX 4 280 10
- 460 SIMPLEX AUTOPATCH 4 256 26
- 460 IDER 4 267 51
- 460 SOLAR CODE PRACTICE OSCILLATOR 4 279 10
- 460 BUILD VHF/UHF WATTMETER 4 288 14
- 460 CW CODE REGENERATOR AND SPEEDOMETER 4 280 46
- 460 TIMER, BEEPER 4 281 54
- 460 TWO MTR TO HF TRANSVERTER 4 269 10
- 460 PROGRAMMABLE AUTODIALER 4 268 40
- 460 1750 MTR TRANSVERTER 5 7 3
- 460 ID TIMER W/TONE AND DISPLAY 5 29 7
- 467 220MHZ TRANSVERTER PT 1 1 6608 14
- 467 220 TRANSVERTER PT 2 1 6609 33
- 470 AMATEUR RADIO AND NWS 1 6604 11
- 470 AFSK SYSTEM FOR FAX 1 6612 49
- 470 CHEAP SURPLUS FAX SYSTEM 4 288 28
- 470 FAX FOR WEATHER WATCHING 4 259 10
- 480 SPEECH DECOMPRESSOR 1 6712 24
- 480 A SPEECH PROCESSOR 3 1503 76
- 480 SIMPLE AUTOMATIC GAIN CONTROL 4 269 86
- 480 SIMPLE SPEECH EXPANDER 4 280 86
- 480 AUDIO COMPRESSOR, ETC 4 258 76
- 490 KIT BUILDING TOOLS AND SUPPLIES 1 6802 19
- 490 DRILL PRESS FOR PRINTED CIRCUIT BOARDS 1 6802 46
- 490 SALVAGED PARTS-A GOLD MINE 1 6707 24
- 490 STRUCTURED ENGR APPROACH TO CONSTRUCTION 1 6708 18
- 490 WIREWRAPPING 1 6706 28
- 490 STRETCHING LIFE SPAN OF SOLDERING TIPS 2 3805 22
- 490 COLLING SEMICONDUCTORS PT 2 3 1708 52
- 490 BUILD A SIMPLE WIRE PLOW 3 1705 107
- 490 COOLING SEMICONDUCTORS PT 1 3 1707 33
- 490 RF TIGHT ENCLOSURES 3 1708 45
- 490 HT MECHANICAL PROTECTION MODS 4 271 92
- 490 PERFBOARD CONSTRUCTION 4 286 42
- 490 HOW TO GET WIRES THROUGH WINDOWS 4 280 22
- 490 SIMPLE BREADBOARDING 4 268 52
- 490 HOMEBREW CORDLESS SOLDERING IRON 4 267 101
- 490 USING HEAT SINKS 4 268 84
- 490 BUILDING FOR BEGINNERS 4 261 42
- 490 TIPS FOR USING RIBBON CABLE 5 31 12
- 500 MULTIPEDANCE BROADBAND TRANSFORMER 1 6608 39
- 500 CHOOSING WIRE SIZE FOR TOROIDAL INDUCTOR 1 6704 39
- 500 LEANING TO WORK WITH TOROIDS 1 6803 27
- 500 INTRO TO COILS AND TRANSFORMERS 1 6805 15
- 501 WORLD OF SWITCHES AND RELAYS 1 6806 25
- 501 RF SWITCHES 1 6702 18
- 501 TR CIRCUITS FOR HOMEMADE RIGS 1 6810 17
- 501 UNIVERSAL TR CONTROLLER 1 6612 39
- 501 SOLID STATE CW TR SYSTEM 3 1603 62
- 501 TRANSMIT RECEIVE SWITCH 4 276 52
- 501 2 MTR NON MECH AUTO AMPLIFIER RELAY 4 271 83
- 510 BEACONS 1 6703 73
- 510 220 MHZ EME REQUIREMENTS 3 1709 45
- 510 COHERENT CW FOR VHF 4 262 48
- 511 FLEXIBLE TAPE ANTENNA FOR 2 MTRS 2 4007 36
- 511 ALL METAL 2 MTR J POLE 3 1707 42
- 511 ACHIEVING THE PERFECT VHF ANTENNA NULL 3 1605 48
- 511 VHF/UHF ANTENNAS 3 1702 46
- 511 ANTENNA POWER DIVIDERS 3 1710 73
- 511 2 METER EGGBEATER OMNI 4 289 48
- 511 PVC PIPE ANTENNAS 4 277 44
- 512 BASICS OF VHF DESIGN AND LAYOUT 1 6808 18
- 513 VHF/UHV RCVRS 3 1703 42
- 514 VHF UHF EXCITERS 3 1704 84
- 516 HIGH POWER 2 MTR AMP W/3CX800A7 1 6804 11
- 516 STRIPLINE KW AMP FOR 220 MHZ 3 1504 12
- 520 TRACKING TVI 1 6702 33
- 520 THE TWO FACES OF CATV 1 6602 11
- 520 STRANGE TVI INVESTIGATION 1 6603 16
- 520 ELIMINATE TVI W/COMMON MODE CURRENT CONT 1 6805 23
- 520 CATVI 1 6612 56
- 520 NOTES ON CATVI 1 6609 37
- 520 CATV LEAKAGE 1 6701 28
- 520 CATVI-COMMITTEE FOR HELP W/PLBMS 1 6804 55
- 520 TVI AND VHF RIGS 1 6804 51
- 520 TVI-HR WE GO AGN! 2 3810 60
- 520 CATVI, CONCLUSION 2 4004 72
- 520 SOLVING PROBLEMS OF RFI 3 1709 124
- 520 DIGITAL EM INTERFERENCE 3 1709 114
- 520 EMI/RFI TEST RECEIVERS 3 1611 70
- 520 VTR RFI 3 1710 111
- 520 BUILD THE HARMONIC ZAPPER 4 277 56
- 520 DEFUSE RFI 4 277 88
- 520 WHY YOU NEED A TUNER 4 260 68
- 530 RETUNING TRAPS FOR WARC BANDS 1 6712 43
- 530 COAXIAL ANTENNA TRAP DESIGN 1 6803 46
- 530 LIGHTWEIGHT TRAP ANTENNAS 1 6706 15
- 530 REACTANCE AND Q OF TRAPS VS BEAMWIDTH AN 1 6805 46
- 530 DUAL FREQUENCY ANTENNA TRAPS 1 6711 27
- 530 HARMONICS AND TRAP ANTENNAS 1 6806 40
- 530 TRAP ANTENNAS EXPLAINED 2 4008 32
- 530 DESIGN YOUR OWN TRAP ANTENNA 3 1710 37
- 540 US FREQ AND MODE ALLOCATIONS 1 6802 51
- 540 POWER REGULATIONS 1 6710 61
- 540 MARITIME MOBILE MYTHOLOGY 1 6802 67
- 540 WHERE DO FCC RULES COME FROM? 1 6603 66
- 540 TOWARD A 23CM BAND PLAN 1 6806 51
- 540 LESSER KNOWN FCC RULES 1 6704 60
- 540 W1AW SCHEDULE 1 6712 85
- 540 23CM BAND PLAN 1 6709 78
- 540 AUXILIARY STATIONS 1 6607 59
- 540 BROADCASTING 1 6702 67
- 540 MISC FCC QUESTIONS 1 6709 65
- 540 OPERATING OVERSEAS 1 6806 61
- 540 BAND EDGES 1 6707 55
- 540 BUSINESS COMMUNICATIONS 1 6711 72
- 540 FCC RULE MAKING PROCESS 1 6604 63
- 540 OPERATING FM AN AIRPLANE 1 6612 59
- 540 STATION ID RULES 1 6601 61
- 540 BAND PLANS 1 6708 63
- 540 THIRD PARTY REGULATIONS 1 6608 60
- 540 SPREAD SPECTRUM STA 5 29 2
- 541 COMPUTERIZING THE NOVICE TEST 1 6806 47
- 541 VOLUNTEER EXAMINER PROGRAM UPDATE 1 6803 48
- 541 TESTING UNDER ARRL VEP 1 6809 42
- 541 AUXILIARY FOR AMATEUR MONITORING 1 6808 11
- 541 HF PHONE BANDS EXPANDED 1 6809 47
- 541 VOLUNTEER LICENSING PROGRAM 1 6712 52
- 541 NEW FCC STUDY GUIDE FOR EXAMS 1 6804 59
- 541 NEW NOVICE TEST PROCEDURES 1 6709 57
- 541 EXAMS FOR DISABLED 1 6810 58
- 541 TICKET TALK-NEW NOVICE COLUMN 2 4006 98
- 541 CQ NOVICE ARTICLE BIBLIOGRAPHY 2 4007 66
- 541 HISTORY OF NOVICE LICENSE, CONCLUSION 2 3912 92
- 541 OPERATING PRIVILEGES VS CLASS 2 4010 69
- 541 NEW SOVIET CALLSIGNS 2 4010 50
- 541 HEATH GENERAL LICENSE COURSE 2 3807 27
- 541 HOW TO PASS FCC EXAMS 4 286 30
- 541 LICENSING FOR AMERICANS OVERSEAS 4 258 68
- 541 HOW TO RUN A NOVICE CLASS 4 286 26
- 550 USE OF TV SWEEP TUBES 1 6603 50
- 550 LONG LIFE FOR TRANSMITTING TUBES 1 6704 11
- 550 EXTENDING XMT TUBE LIFE 2 3812 87
- 550 VACUUM TUBE SUBSTITUTION 3 1610 58
- 560 INTERMODULATION REVIEWED 1 6705 17
- 560 DICHOTIC DETECTOR FOR CW 1 6704 32
- 560 DIGITAL READOUT FOR VISUALLY IMPAIRED 1 6603 11
- 560 GOOD AND BAD W/MODERN RCVRS AND XCVRS 1 6701 11
- 560 NOTES ON NOISE FIGURE 1 6710 47
- 560 INTERMODULATION DISTORTION 1 6802 26
- 560 RCVR FEATURES THAT HELP W/INTERFERENCE 1 6702 43
- 560 1 TRANSISTOR RF AMP 1 6808 46
- 560 2 FREQ FM RCVR 1 6603 35
- 560 BUILD YOUR OWN DIRECT CONV RCVR 2 3906 40
- 560 GEN COVERAGE RCVR PRESELECTOR 2 3906 56
- 560 CONTRUCT AN OPTICAL FM RCVR 3 1611 53
- 560 BETTER SOUNDING SSB 3 1702 58
- 560 HIGH FREQ RCVR PERFORMANCE 3 1702 33
- 560 COMPACT SSB RECEIVER 3 1611 10
- 560 VERSATILE COMMUNICATIONS RECIEVER 3 1507 12
- 560 PORTABLE SHORTWAVE RECEIVER 3 1704 67
- 560 PERFORMANCE OF ACTIVE MIXERS PT 1 3 1503 30
- 560 HARMONIC PRODUCT DETECTOR FOR QRP XCVRS 3 1606 44
- 560 INTERMODULATION DISTORTION 3 1612 81
- 560 THE BRAGG CELL RCVR 3 1602 42
- 560 RECEIVER DYNAMIC RANGE 3 1512 77
- 560 ROTARY DIAL AND ENCODER FOR DIGITAL TUNI 3 1512 30
- 560 SIMPLE SHORTWAVE B'CAST RCVR 3 1611 84
- 560 PERFORMANCE OF ACTIVE MIXERS PT 2 3 1504 38
- 560 DESIGNING A MODERN RCVR 3 1611 23
- 560 MODULAR TWO BAND RCVR 3 1607 53
- 560 CHEAP TUBE RCVR 4 267 64
- 560 DUAL GATE MIXER FOR SONY ICF 2002 5 27 6
- 560 PTO SUBSTITUTE FOR COLLINS R390A 5 3 6
- 564 TRAVELER'S RCVR FOR 20 MTRS 1 6709 31
- 564 BAREBONES 20 MTR CW SUPERHET 1 6606 29
- 567 SINGLE FREQ AM/FM RCVR FOR 2 MTRS 2 3905 98
- 567 USING RADIO SHACK WEATHER RADIO FOR 2 MT 4 270 46
- 570 1750 METER OPERATING 2 4007 88
- 570 RF AMP 4 277 34
- 571 VMOS ON 1750 METERS 3 1610 71
- 580 HISTORY OF AMATEUR SSB 3 1709 12
- 602 EXTERNAL MIKE FOR HT 1 6605 35
- 602 JEIL SOUND HM-5 MICROPHONE 1 6804 49
- 602 EQUALIZE YOUR MICROPHONE 1 6607 11
- 602 PORTABLE OR MOBILE REMOTE MIKE 1 6605 35
- 602 MICROPHONE CALIBRATION 3 1706 73
- 604 HAMCATION BACKUP RIG 1 6611 17
- 610 SIMPLE WAYS TO TEST YOUR TRANSMITTER 1 6711 39
- 610 ONE TUNE 10 WATT CW TRANSMITTER 2 3906 46
- 610 POLARIZATION MODULATION 2 3804 60
- 610 TRANSMITTER TUNING AID 3 1702 52
- 610 ONE TUBE TRANSMITTER 4 270 32
- 610 $10 SSB EXCITER 4 268 92
- 610 CHEAP ONE TUBE TRANSMITTER 4 272 14
- 610 HYGAIN CB TO CW 4 262 18
- 610 OTHER BAND VERSIONS OF FUNMITTER, ETC 4 268 48
- 610 DIGITAL VOICE MODULATION 5 12 5
- 613 40 MTR XCVR 3 1512 43
- 614 20 MTR SSB XCVR 4 268 12
- 615 15 MTR SIDEBAND XCVR 3 1603 12
- 616 PUTTING HAMCATION RIG ON 10 MTRS 1 6704 19
- 616 CB TO 10 FM 3 1602 16
- 617 6 MTR TRANSMITTER YOU CAN BUILD 1 6604 37
- 617 2 MTR BILATERAL XCVR 2 3803 13
- 617 50 MHZ DSB XMTR 4 264 58
- 619 VXO CW RIG FOR 30 METERS 1 6711 31
- 619 2 TRANSISTOR XMTR FOR 30 MTRS 1 6802 46
- 620 BIOLOGICAL EFFECTS OF RF-PT 1 1 6611 67
- 620 BIOLOGICAL EFFECTS OF RF ENERGY-PT 2 1 6612 72
- 620 HI VOLTAGE POWER SUPPLY SAFETY 1 6810 40
- 620 SAVE AC POWER WIRING PRACTICIES 1 6804 42
- 620 LOW COST ALARM SYSTEM 2 4001 20
- 620 ELECTRIC SHOCK 2 3904 112
- 620 LIGHTNING PROTECTION-A NEW ERA 2 3804 22
- 620 EFFECTS AND TREATMENT OF ELECTRIC SHOCK 3 1703 85
- 620 PCB'S IN HAM SHACK 3 1612 42
- 620 IS IT STOLEN? 3 1512 84
- 620 SIDESTEPPING GROUND FAULTS 4 265 64
- 620 BURLAR CIRCUITS 4 280 32
- 620 THUNDERSTORMS 4 259 94
- 620 BAD WEATHER ALARM 4 259 102
- 620 EMERGENCY LIGHTING SYSTER16 4 285 16
- 620 CAR BURGLAR ALARM 4 269 72
- 630 FRANKLIN BROADSIDE 1 6802 48
- 630 GAIN OF VERTICAL COLLINEAR ANTENNAS 1 6610 40
- 630 QUAD J COLLINEAR ANTENNA 1 6709 45
- 634 2O MTR COLLINEAR ARRAY 3 1605 57
- 637 2 MTR COLLINEAR 4 267 10
- 640 POWER SPLITTERS 1 6702 82
- 640 HIGH QUALITY UHF SOURCE 1 6702 28
- 640 SIMPLE WAY TO LOCATE AND TRACK MOON 1 6601 33
- 640 NOISE TEMP, ANTENNA TEMP, SUN NOISE 1 6807 69
- 640 PERISCOPE ANTENNA SYSTEMS 1 6802 70
- 640 CARE OF GUNNPLEXERS 1 6704 14
- 640 RECOMMENDATIONS FOR 70 CM EME 3 1506 12
- 640 10 GHZ WEATHERPROOF BOXES 3 1508 75
- 640 10 GHZ WEATHER RADAR 3 1609 61
- 640 EXPANDABLE MICROWAVE COMMUNICATIONS NETW 3 1508 36
- 640 ARE YOU READY FOR 900MHZ? 4 261 74
- 640 10 GHZ SIGNAL SOURCES 5 3 16
- 640 MICROWAVE ALIGNMENT PROBE 5 12 7
- 641 PARABOLIC DISH FEEDS 1 6701 79
- 641 SUPER STUBBY ANT FOR 450 MHZ 2 3812 80
- 641 432 MHZ HELIX FOR OSCAR 10 2 4007 40
- 641 HOMEBREW MICROWAVE ANTENNA 3 1509 68
- 641 FRESNAL ZONE PLATE FOR 10.4 GHZ 3 1505 44
- 641 CYLINDRICAL FEEDHORNS 3 1505 31
- 641 COLLINEAR FOR 70 AND 23 CM 4 260 64
