[Elecraft] Zipper Noise and Birdies on 6M -- FIXED!

[John Ragle]

Allen...

     I have these same birdies (at least I suppose they're the same) and 
I suspect that all K3 have them. The most annoying ones are where the CW 
action usually occurs (50.09430, 20 dB above noise floor) and a number 
of minor ones around 50.098 (3-5 dB above the noise floor), as well as 
several major ones up where the SSB action occurs: 50.21050, 50.24055, 
etc. which are all 20+ dB above the noise floor. These are not 
"external" blips (not computer, not router, etc.) as they are present 
when nothing else is on, and they are present when the antenna is 
disconnected.

     I "treat" them by ignoring them. They are sharp, stable, and 
unmodulated. My ear can differentiate between them and real signals 
without any problem. They are "features" for "calibration.".. ;>) Every 
modern rig I have ever owned has had similar warts.

John Ragle -- W1ZI

=====

On 7/4/2011 1:16 PM, Allen R. Brier wrote:
> I have a number of birdies on 6 and other bands and they sure are annoying.
> What's the best way to eliminate them? I am not using an external pre-amp.
>
> Allen N5XZ