[Elecraft] [P3] SVGA display issues - couple probs in fact!

[Simon Lewis]

Yes I found some interference on 144 and on 28 MHz from the P3 

Ill throw some ferrites round the PSU cable

the interference sloping on the screen did not occur on the SDR-IQ hanging off the IF port too 

so puzzled by it 

will see if I can make it occur again sometime!

Cheers

Simon 



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> Date: Sun, 16 Sep 2012 11:02:06 +0100
> To: gm4plm at hotmail.com
> CC: elecraft at mailman.qth.net
> From: david at g4dmp.fsnet.co.uk
> Subject: Re: [Elecraft] [P3] SVGA display issues - couple probs in fact!
> 
> Yes, Simon, you will likely find that the sloping signals drifting
> across the waterfall are caused by local switched mode PSUs. Perhaps
> your own?
> 
> I have found the P3 causes some interference on 2 metres. This was cured
> quite simple by placing a ferrite clamp-on at each end of the power
> cable between the P3 and K3.
> 
> I hope that helps.
> 
> 73 de David G4DMP
> 
> In a recent message, Simon Lewis <gm4plm at hotmail.com> writes
> >
> >I got my new P3 working this weekend
> >what a fun box!
> >v handy - I will enjoy using this on VHF too
> >I have a couple issues ....
> >Every couple mins the whole noise floor jumps and a horizontal line
> >appears across this display
> >is this somekind of time marker or something else
> >
> >Also my shack this morning was cold .... and for a while I got some
> >interference bars that sloped across the screen on the VGA monitor
> >once the place warmed up they disappeared
> >
> >anyone else see this
> 
> -- 
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>  | David M Pratt, Kippax, Leeds.   |
>  | Website: http://www.g4dmp.co.uk |
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