[Elecraft] K2 CW CALFIL method

[email protected] [email protected]
Wed Feb 20 09:08:01 2002


In a message dated 2/20/2002 7:28:33 AM Central Standard Time, 
[email protected] writes:


Would something like this work for SSB? I don't even know how to zero-beat an 
SSB signal. I guess you have to know what the OM or YL is supposed to sound 
like, and then twist the knob until s/he sounds right? Hummmm.

++++++++++++++++++++++++++++++++++++++++++

Hi

Your CW filter setting is similar to the method I use except I use the 7.000 
MHz birdie after I center the filters with Spectrogram.

Set a Spectrogram marker at your sidetone frequency. Center the bandpass for 
each filter on that marker for CWn and CWr. Now with the antenna disconnect 
find the internal birdie at around 7.000 MHz. Go out of menu to normal and 
adjust the VFO so the birdie on the Spectrogram display is on top of the 
marker. Now without touching the VFO go into cal filter and make a small 
adjustment to each filter so the birdie is on top of the marker for each 
filter in CWn and CWr. When all is set up properly you can zero beat a CW 
signal and switch between filters or CWn or CWr with no change in tone.

For SSB you can use the audio tones on WWV at 10.000 MHz. The tones are 500 
and 600 Hz on alternating minutes with a 1000 Hz tone on the minute. Check 
the WWV website for the format. 

Don Brown
KD5NDB

K2 #1808 all options
K2 #2174 SSB NB AF
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