Thierry wrote:
the built-in SWR of my RTX TS-570D read SWR 1:1. If my external SWR
displayed an SWR 4 that means that it read the info AFTER it, what looks
in contradiction with what ARRL website states in his technical columns...
Who's right ?

The SWR between the transmitter and the antenna tuner is usually adjusted for
1:1. The antenna tuner doesn't affect the SWR between the antenna tuner and the
antenna. It can be almost any value. Nothing strange at all about a 4:1 SWR
after the antenna tuner.
--
73, Cecil http://www.qsl.net/w5dxp



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