[Milsurplus] BC-221 questions Calibrate the crystal reference?

WA5CAB at cs.com WA5CAB at cs.com
Wed Jan 28 18:49:51 EST 2009


7333.33 KC is one of the calibration points in the settings book.  It uses 
the 22nd harmonic of the 1 MC oscillator and the 3rd harmonic of the variable 
oscillator.

The only connection I can come up with is that CHU was for many years on 7335 
KC.  But the difference would be an odd number, 1666.667 CPS.  Maybe he had 
perfect pitch.  :-)

In a message dated 1/28/2009 5:23:43 PM Central Standard Time, 
olegerityincj at austin.rr.com writes: 
> Noted on this WEB page:
> http://www.qsl.net/ve3bdb/bc221observations.htm
> "Accuracy of the crystal oscillator was checked at the 7,333.3 KHz 
> calibration point."
> 
> Cannot find reference in TM to using this as a calibration reference?
> 
> What did I miss?
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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