Richard Harrison wrote:

No problem with a tuner. "The input power was the same on each antenna."

How can the input power be the same if it's going through the tuner? The
input power is the same at the input of the tuner, but we have absolutely
no idea what the output power from the tuner is. Isn't that a problem for
a fair test? Would not a more reasonable approach be to use something like
Wattmeter and get the antenna resonant? I've seen folks who used antenna
tuners find out the tuner can get really hot into some loads? If the tuner
is consuming some of the RF as heat, that's power not reaching the antenna
ergo not a fair test.


No problem with 360 feet. Received carrier power is proportional to
radiated power at that distance along the horiaontal path.



Isn't 360 feet within the near RF field at most HF frequencies?

On Oct 26, 5:53 pm, Art Clemons wrote:
Richard Harrison wrote:
No problem with a tuner. "The input power was the same on each antenna."

How can the input power be the same if it's going through the tuner? The
input power is the same at the input of the tuner, but we have absolutely
no idea what the output power from the tuner is. Isn't that a problem for
a fair test? Would not a more reasonable approach be to use something like
Wattmeter and get the antenna resonant? I've seen folks who used antenna
tuners find out the tuner can get really hot into some loads? If the tuner
is consuming some of the RF as heat, that's power not reaching the antenna
ergo not a fair test.

I may be missing the story...Is he feeding all these whips with the
tuner
alone, with no loading coil, or he feeding coil loaded antennas with
a
tuner for impedance matching?
I got the impression he was using the tuner alone, with no other
loading
coils on the whips.
I have no real problem with using a tuner for impedance matching
as long as it's not the actual loading coil.
I guess without seeing the article, it's hard to tell what his point
is.
MK

Art Clemons wrote:
"Would not a more reasonable approach be to use something like a
Wattmeter and get the antenna resonant?"

You have a point. The wattmeter was on the input to the tuner and we
don`t know what the tuner`s loss is. If the loss is negligible,
everything should be OK, and "the input power was the same on each
antenna."

Best regards, Richard Harrison, KB5WZI

On Oct 27, 12:15 am, (Richard Harrison)
wrote:
Art Clemons wrote:

"Would not a more reasonable approach be to use something like a
Wattmeter and get the antenna resonant?"

You have a point. The wattmeter was on the input to the tuner and we
don`t know what the tuner`s loss is. If the loss is negligible,
everything should be OK, and "the input power was the same on each
antenna."

Best regards, Richard Harrison, KB5WZI

I received back a fairly detailed email from the QST editor
involved... I will reply to him next week... I will incorporate some
of the comments on here - with attribution to the author(s)..
Everything (except private comments) will be shared here...
Right now, back to the inhumane QRN on 80 meter cqww...

denny / k8do