Interesting, interesting...
I had a similar problem on 80 CW only : my note was T8 and garbling. I used
a K2/100 and a SB220-PA. I attributed this behaviour to the weakness of the
220 V supply (engine driven generator). By why only on 80 ?
More on this subject ?
Luc/F6HJO/HB9ABB
- Original Message -
From: Mike [EMAIL PROTECTED]
To: elecraft@mailman.qth.net; Ron ZL1TW [EMAIL PROTECTED];
[EMAIL PROTECTED]
Sent: Thursday, December 02, 2004 6:36 PM
Subject: [Elecraft] KPA100 Spur on 160m ?
During a recent 80m QSO with Ron, ZL1TW, he reported that I had some
kind of FM-ing on 80m cw.
Did some fooling-around yesterday found the problem only existed on
80m only on powers of 80w or more. It was VERY noticeable on a second
Rx I was surprised nobody had mentioned it before - however, it was a
kind of revenge for Ron, as it was me who told him about the problem on
his K2 a few weeks ago.
Anyway, I installed a 12pF capacitor from the junction of D12/D14 to
ground, on the KPA-100 all now seems clean. Not sure if the problem
had always existed with my unit, or whether it appeared 'along the
way'. This quick easy mod DOES work though, but it would be good to
get some official Elecraft comments!
73 to all de Mike, zl1mh
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