[Elecraft] P3 Hash

Jack Berry we5st at yahoo.com
Tue Aug 21 08:08:01 EDT 2012


When you say "flat display", do you mean no "grass"? Just a flat line?

Thanks!
Jack

On Aug 20, 2012, at 1:30 PM, k1tm <k1tm at yahoo.com> wrote:

> 
> rowland wrote
>> 
>> On my P3 the BNC connector problem caused signals to be presented on the
>> P3 display 
>> that could not have been present at the antenna. The P3 showed two bands 
>> of increased noise floor that were each roughly 38 kHz wide. One was 62 
>> kHz above center freq and the other was 62 kHz below center freq. These 
>> noise bands were always present, regardless of operating band or center 
>> freq, with the same width and at the same distance from the center freq. 
>> If you're seeing signals invariant of the center freq then try a 
>> different BNC cable."  
>> 
> 
> I had the same issue as you describe, and fixed it by swapping to another
> cable.  The 
> poor connection was at the P3 side of the cable.  Once swapped out, I also
> found that
> my USB sound card was radiating a lot of noise as well.  I had to both swap
> cables and
> unplug the sound system to get to a nice flat display.  
> 
> 


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