[Elecraft] What is this "interference" displayed in P3 ? It moves along with VFO

[Vic K2VCO]

Two possible causes for spurious signals on the P3 are

1) A bad coax jumper with a non-continuous shield (Elecraft had some at some point) , and

2) paint on the inside of the enclosure where the parts are joined.

Try a new jumper cable and make sure the mating surfaces of the enclosure are sanded clean.

On 8/23/2013 6:45 PM, Dale Harding K7DNH wrote:
> I have noticed something the past couple of weeks... there is sometimes some
> type of  signal showing up on the P3 that moves with the VFO..
>
> 1. note VFO @ 225 and Mkr A 237.95
> <http://elecraft.365791.n2.nabble.com/file/n7578210/DNH_1041.jpg>
> 2. mkr now at 237.95 - note signal 252.15
> <http://elecraft.365791.n2.nabble.com/file/n7578210/DNH_1042.jpg>
> 3. does not matter where VFO center is...
> <http://elecraft.365791.n2.nabble.com/file/n7578210/DNH_1044.jpg>
>
> Sometimes it is there - sometimes it isn't.
>
> I am not educated in electronics, however it must be coming from within the
> radio or P3 correct? Ideas to "fix"  - does it need fixing?

-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/