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Old August 16th 05, 06:35 PM
Cecil Moore
 
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Reg Edwards wrote:
Is there anybody about who still imagines that an SWR meter, located
in the transmitter, or even on the other side of the tuner, indicates
SWR on the transmission line between transmitter and the antenna?


If it's a stand-alone SWR meter with three foot 50 ohm
coax cables on the input and output, then it is located
in a 50 ohm environment and is indeed indicating the correct
SWR. The thing that makes an SWR meter indicate a valid value
is if its physical environment is extensive enough to force
the impedance ratio of Vfor/Ifor = Vref/Iref = 50 ohms.

Back when I got my first license, those things were called
transmatches. Seems you would like that name better than
SWR meter. TRANSmitter MATCHing device = Transmatch.
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73, Cecil, http://www.qsl.net/w5dxp

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