When I did Alignment and Test Part II the first time, my BFO low frequency
was slightly too high: 4912.85 kHz, which is not <= 4912.7 kHz (the
official specification). After having done Assembly Part III and having
checked the calibration of the master oscillator using WWV, I know that
the calibration of the master oscillator is not the fault.
I carefully calibrated my filters using Tom NØSS's Spectrogram procedure.
According to my filter calibration table, the lowest frequency required of
the BFO is 4913.20 kHz, which is still 0.35 kHz higher than my BFO's
minimum frequency. Is my slightly-out-of-spec BFO really a problem?
73,
- Rob W7GH
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