On Wed, 17 Dec 2003 06:44:06 GMT, Roger Halstead
wrote:

|On Fri, 12 Dec 2003 22:32:07 -0700, Wes Stewart
|wrote:
|
|On Sat, 13 Dec 2003 00:06:16 GMT, Roger Halstead
wrote:
|
||
||Every HF antenna here will go 1:1 "some where" ...
|
|Not so.
|
|I'd like to know how you can say that?

I can say it because it's true.
|
|Have you measured all my antennas?

No, but I've measured some of mine. Why just yesterday, I was out
measuring my vertical that started out as a Cushcraft AV-80. I'm
looking to use it on 40 meters. At resonance, at about 5.43 MHz, the
base impedance was 38.5 +j0. That's a 1.3:1 SWR.

And BTW that's a datum taken using a method described in HP
Application Note 77-3, "Measurement of Complex Impedance 1-1000 MHz."

You mistakenly believe that because an antenna *has a resonance* at
some frequency, its SWR is *1:1*. Not so, as shown above.

I have shown at least *one* example where you are wrong when you say
*every antenna*.

| You are welcome to come over and
|check them out.

No thanks. The weather here is much nicer for doing antenna work.

| Every one "according to my meter which is a Bird"
|reaches 1:1 some where in the desired band. It may not be exactly the
|frequency the formula predicted, but it'll be relatively close.
|
|Roger Halstead (K8RI & ARRL life member)
|(N833R, S# CD-2 Worlds oldest Debonair?)
|www.rogerhalstead.com
|Return address modified due to dumb virus checkers
|