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- Newsgroups: rec.radio.cb
- Path: sparky!uunet!haven.umd.edu!purdue!ames!sun-barr!cs.utexas.edu!sdd.hp.com!hp-cv!hp-pcd!hpcvaac!billn
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: Re: SWR Tuning and PLL
- Message-ID: <1992Dec22.182438.24017@hpcvaac.cv.hp.com>
- Organization: Hewlett-Packard Company, Corvallis, Oregon USA
- References: <103400061@hpfcso.FC.HP.COM>
- Date: Tue, 22 Dec 1992 18:24:38 GMT
- Lines: 19
-
- myers@hpfcso.FC.HP.COM (Bob Myers) writes:
- :
- : As a really trivial aside, note that there is also a current standing wave,
- : a quarter-wave out of phase with its voltage counterpart. As Gary said, VSWR
- : (or "CSWR", for that matter - same magnitude in either case) is NOT the
- : ratio of reflected to transmitted power, although you CAN figure the reflected
- : power, given the VSWR. SWR *is*, among other things, the ratio of line to
- : load impedance (or vice-versa, whichever gives a number >= 1).
-
- If you wish to be precise, this is all true. However, for run-of-the-mill
- CB purposes, it is the ratio of transmitted to reflected power. Why confuse
- people with all the possible types of standing wave, or methods of determining
- the SWR?
-
- The fine distinctions matter, if you are designing an antenna system or a
- matching network for a transmitter. They do not matter at all to Oscar
- Overmodulator - CB operator.
-
- Bill
-