On Jun 4, 5:23 pm, "Ed_G" wrote:
From QRZ.com regarding tuners:

"The tuner has absolutely no effect at the antenna."

From eHam.net regarding tuners:

"Does nothing. The tuner as the other poster said,
just makes your radio happy."

Neither Eham nor QRZ publish official technical opinions of the
staff, near as I can tell..... thus the above comments only reflect the
opinions of some anonymous contributers. As we all know, regarding
antenna theory there is a huge gap in the knowledge of many hams.

Regarding tuners and antennas, isn't the main job of an antenna
coupler ( tuner at feedpoint ) to maximize the efficient transfer of
power from the feedline to the antenna? If true, then the coupler (
tuner) certainly does have an effect !

Ed K7AAT

I'd never really heard of this myth, but myself, I think the feed
point
is the best place for a tuner if the intent is to match the load to
the
feed line. As an example, if you were using 50 ohm coax, and the load
was in the 1000 ohm range, you would have an overall lower system
loss matching the load to the coax, rather than place the tuner at
the
rig and matching the load seen at the coax to the rig.
With the lower loss ladder lines I suppose it becomes less critical.