[Elecraft] Re: Help with Birdie (not "tweet tweet!")

[David Gropper]

Ron,

I'll touch C22 tomorrow.... I have to get my boy to the local
Community College at 6:30 a.m.  to take the exam for the "Head
Start Program"   - they didn't ask me if that time was OK  :-(

However, going through all the schematics on the option
boards, I note that the KSB2 option has a non-tunable 4 Mhz
"ceramic resonator" labeled "Z1". If that was off by 100 hz
then that could be the culprit. If it is, then there might be
a way to "pull" it....

Tomorrow I'm going to try to feed the signal from Z1 into my
Icom 746 (mostly idle since the K2) and cross check with the
SGC-2020. - I usually take the SGC camping --- don't want to
risk the K2 just yet :-) - wait until the KAT2 goes in.....
totally portable and self contained QRP --- 'way to go!!

 Have a good evening, and I'll report on my findings
tomorrow....

Haven't had so much intellectual fun with Ham Radio since my
Heathkit days  :-). Although my eternal messing around with
weird antenna's comes a close second  <g>


Dave KK7SS
K2 #3003


>>That all said, there is something odd about that birdie, and
I'm not sure
>>you need to go through the hassle of changing your Control
Board 4 MHz
>>oscillator just to get rid of it. Did you try touching C22
(the frequency
>>control trimmer on the Control Board 4 MHz oscillator) and
see if that
>>birdie moved?

>>I only have the SSB, NB, 160 Meter and KPA100 options in my
K2, so maybe
>>there is an oscillator on some other board that you have and
I don't that is
>>mixing with something.