[Elecraft] K2 CW and DSP

[John Graf]

I've been experimenting with the DSP filters on my K2 and I have  
found several combinations of DSP and crystal filtering that work  
very well on CW (at least for me).  However, I have run into a  
strange phenomenon.

Here is how I reproduce it:  I set my crystal filter at its widest  
setting (1.8 KHz).  The DSP filter is set for "low pass" with noise  
reduction on.  With this combination, I am able to find two identical  
CW signals on either side of a center frequency.  It operates just  
like a direct-conversion receiver.

So here are a couple of questions for the group:  First, has anyone  
else seen this happen?  If not, do you think it may be a construction  
error on the DSP board?  How about a screw-up in the filter alignment  
or programming?

Thanks and 73,

John, WA6L


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