Roy Lewallen wrote in message ...
Mark Keith wrote:
. . .
Also, I suspect excess loss if the noise and signals drop compared to
any other antenna. If the coax is not bad, old or waterlogged, or thin
stuff like rg-58, then I'd suspect excess loss in the autotuner. . . .

Out of curiosity, just how much loss do you think "thin stuff like
RG-58", say 50 feet of it, has on 20 meters?

Roy Lewallen, W7EL

Normally it shouldn't be too much. But if the "thin" stuff is old, or
has been damaged , it might be more than usual. MK