[Elecraft] Spectrogram help

W3FPR - Don Wilhelm w3fpr at earthlink.net
Fri Nov 5 21:02:32 EST 2004


Dan,

The BFO settings in the manual are only a starting point.  You have to 
refine them for your particular K2. Since you already have the N-gen and 
Spectrogram, you have all the tools you need for the task.

For detailed instructions on setting your filter/BFOs, look at my website 
www.qsl.net/w3fpr article on K2 Dial Calibration - the CAL PLL procedures 
are detailed in Step 3 of that article.  Links are provided for additional 
information if you need it.

73,
Don W3FPR

----- Original Message ----- 

I must be doing something wrong.  Have my BFO settings exactly as
specified in the K2 manual on CW.  Using the noise gen from Elecraft.
However, during the BFO settings per the K2 manual, FL2-FL4 at the BFO
settings they specify results in almost no audio coming from the speaker
using the N-gen.  Then, when I go to spectrogram, my entire curve for
FL1 is to the right of 600Hz on this display and no matter what I do
with the vfo knob, there is no shifting of the curve to speak of and
just changes in amplitude.  On FL2-FL4, there is no amplitude at all but
I can then adjust the VFO and see/hear the Ngen signals coming thru but
the entire curve is still to the right of 600Hz.  Running spectrogram
off the headphone jack to my sound card.

During operation, my CW mode audio level is considerably below the LSB
or USB level and my receive CW signals seem to turn to clicks at audio
freq below 800Hz or so.....what have I missed?





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