[Elecraft] P3 - Appearent P3 Anomoly

[W6NEK]

You're not alone Don.  I have the exact same issue.  If I place my hand on 
the top of the P3 cabinet the displayed noise goes to zero.  I'll be 
interested to see what kind of feedback you receive.

Frank - W6NEK

----- Original Message ----- 
From: "Don Wines" <dwines at suddenlink.net>
To: <Elecraft at mailman.qth.net>
Sent: Tuesday, May 03, 2011 10:26 AM
Subject: [Elecraft] P3 - Appearent P3 Anomoly


> Guys,
>
> My P3 has developed a problem that appears to be some internally generated 
> noise that shows up on the screen but doesn't come from the K3. Below is a 
> link to a video I made this morning for a visual description of the 
> problem. After the P3 has warmed up it will disappear. It will gradually 
> migrate from right to left (higher to lower in freq) and eventually either 
> disappear or go out of range of the display. It doesn't to interfere with 
> reception even when the signal is within the noise boundary.
>
> This problem seems to occur on all bands from 40 thru 10 meters. I haven't 
> seen it below 40 meters. There is no ground lug on the P3 but the K3 
> itself is well grounded.
>
> http://www.flickr.com/photos/43690708@N02/5684413732/
>
> I didn't show it on the video but when the Select knob is turned even with 
> no function displayed the noise spreads out over a much wider span but 
> then re-concentrates after the knob is left alone.
>
> The P3 has performed flawlessly up to this point. This problem seems to be 
> superficial in that is doesn't otherwise affect the operation of the unit.
>
> Any ideas from anybody especially you guys in Aptos!
>
> Don Wines
> K5DW