[Elecraft] [k3] 6m birdies

[Mike Rodgers]

None of those 6m birdies here in Texas   

73
Mike R

Date: Mon, 04 Jul 2011 13:45:11 -0400
From: John Ragle <tpcj1r03 at crocker.com>
Subject: Re: [Elecraft] Zipper Noise and Birdies on 6M -- FIXED!
To: elecraft at mailman.qth.net
Message-ID: <4E11FC27.7090506 at crocker.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

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

73
Mike R


Sent from my spy ring