on 12/7/99 10:15 AM, EDWARDS, EDDIE J at eedwards@oppd.com wrote:
> [Ed-K0iL] Perhaps you are not considering which signal is actually
> causing the interference. Is it the fundamental signal on 3.5Mhz, 7Mhz,
> 14Mhz, 21Mhz, or 28Mhz? (I know, I left out the WARCs). Or is it one of
> the Harmonics?
It's a good point. However, in my case, I don't think out of band harmonics
(> 30 MHz) are a real issue since I have a very good lowpass filter on the
output of the amplifier and generally use an antenna tuner as well.
The original question was what material is best for the HF band. Certainly,
if your interference is from 10 meters, then material 43 would be the best.
If it is all bands, then material 77 or a combination of the two would be
the best choice.
73,
Jon
KE9NA
--
-------------------------------------
Jon Ogden
KE9NA
http://www.qsl.net/ke9na
"A life lived in fear is a life half lived."
--
Submissions: rfi@contesting.com
Administrative requests: rfi-REQUEST@contesting.com
WWW: http://www.contesting.com/rfi-faq.html
Questions: owner-rfi@contesting.com
|