Jim - NN7K wrote:


Jerry, just because you are wanting to recieve, instead of transmit,
doesn't mean that the V.S.W.R. mismatch isn't there-- nor its effect
on the subsequent coax loss's being multiplied because of the mismatch!
Remember- the antenna , coax, and the mismatch are all bi-directional !
The additional loss in the feedline, because of a high swr, is also
present in the recieve direction!. . .

That's not quite correct.

The SWR on the line is determined solely by the transmission line
impedance and the load impedance. When transmitting, the antenna is the
load. When receiving, the receiver is the load. If the receiver and
antenna have different impedances, the line SWR will be different when
transmitting than when receiving.

Fiddling with the antenna or the antenna/feedline match won't have any
effect at all on the line SWR. It will, however, have an effect on the
strength of signal arriving at the receiver.

Roy Lewallen, W7EL