What cheat sheet? The Omni VI I have may need a little tlc before
long. I haven't really noticed it on other bands, but when I'm tuned to
WWV on 10 Mhz and the tone is being broadcast; I hear a very short
duration change in pitch of the tone from time to time. Like maybe the
length of time to send a dah at 20 wpm. After the change in pitch,
drift?, it's back to normal for a while; then all of a sudden the change
in pitch again. An oscillator drifting and pulling the PLL out of lock?
73
Stan
KM4HQE
On 03/06/2018 11:16 PM, Peter Bertini wrote:
Thanks for the responses... the question should have been worded more
clearly. I needed to know how to adjust the ten phase locked crystals on
the hetrodyne oscillator board. Dave, K1FK kindly provided an abbreviated
cheat sheet showing how to adjust each oscillator using a scope on the
phase detector. The 20 meter band in my Omni had an intermittent problem
where the frequency would develop a warble on CW signals. I suspect it was
the 20 meter crystal drifting to the ragged edge of being able to hold
phase lock.
73
Pete
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