[Elecraft] K2 BFO
jerry
jerry at tr2.com
Mon Jun 28 11:00:37 EDT 2021
Hello all,
I note that my new ( to me ) K2 is not well set up on the BFO for the
narrow CW filters. It's fine for the 1.5kHz one, but the audio passband
is too high for all the narrower ones - so I cannot "spot" tune. If my
sidetone is set to say 600Hz,
it's on the lower slope of the audio peak.
It seems to be straightforward to adjust the BFO per filter with the
CAL FIL function. With a tablet running a spectrum analyzer, I can pull
the audio spectrum right down to where it needs to be, no problem.
HOWEVER, when I try to save it, I get "INFO 230" which means that the
frequency counter is not connected to the BFO. And the passband doesn't
stay changed.
Is it true that the rig will refuse to save the BFO setting unless it
can measure the BFO frequency?
My radio came to me without a frequency probe. I do have one on
order from Elecraft. I also have enough junk to make one. A hunk of
RG316, some dupont connectors, an 11pf dipped silver mica capacitor.
But - at the moment, I really don't want to do any of that stuff. I
just want to slide the audio output spectrum down to where I can get on
with operating. And I'm not interested in the numerical BFO reading.
Ultimately, I will set up the filters from scratch - I have the upgraded
crystals AND the SSB adapter on order.
Can the radio REALLY not save the BFO setting unless it can measure it?
- Jerry KF6VB
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