Steve Kallal wrote:
The part that wasn't clear to me at first, was the need to redo CAL PLL
& CAL FIL after EACH C22 adjustment. I read so many comments on the
C22 doesn't control the dial calibration, it only controls the frequency
counter used in the dial calibration. Once you've done the calibration,
including filters, you could actually turn C22 to end stop without
compromising the calibration.
reflector archives that mentioned simply listening to WWV and listen for
zero beat. Obviously that is in the greater context of CAL PLL & CAL FIL
reruns.
Whilst the frequency counter is slightly off, you can work out how much
to over/under-correct, and therefore considerably reduce the number of
iterations. It's sufficiently long since I did this that I cannot
remember the exact details.
--
David Woolley
Emails are not formal business letters, whatever businesses may want.
RFC1855 says there should be an address here, but, in a world of spam,
that is no longer good advice, as archive address hiding may not work.
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