[Elecraft] SDRPlay as panadapter

Tue Sep 26 14:34:39 EDT 2017

Many thanks for the responses.  I was thinking of using SDRPlay connected to the K3 IF out and Win4K3.  The setup is extremely simple, but I wasn't sure what the downside was.
73, Dick WO1I

-----Original Message-----
From: BARRY LAZAR [mailto:k3ndm at comcast.net] 
Sent: Tuesday, September 26, 2017 2:04 PM
To: m.matthew.george at gmail.com; Richard Siegmund Lindzen
Cc: Elecraft at mailman.qth.net
Subject: Re: [Elecraft] SDRPlay as panadapter

Max,
     I use the rsp2. It works ok for what I do. No, it doesn't compare to my 24 bit. 192 kHz sound card. But, there is a big difference between a 12 or 14 bit ADC and a 24 bit ADC. Neither lets me see really weak signals. 

     I do not use the P3. It is the only piece of Elecraft produced gear that doesn't fit my station architecture. And, the rsp2 can't be used to drive apps like CW Skimmer. I guess what I'm saying is that you need to think about what you are trying to build, long term, and what it takes. 

     The LP-Pan and a good sound card make a good basis for flexibility. However, the maximum you can display, today, is around 190 kHz. And, you may not be able to see deeply into the noise. 

73,
Barry
K3NDM

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-----Original Message-----

From: m.matthew.george at gmail.com
To: rlindzen at mit.edu
Cc: Elecraft at mailman.qth.net
Sent: 2017-09-26 1:39:25 PM
Subject: Re: [Elecraft] SDRPlay as panadapter

I used a SDRPlay RSP1 for awhile after using an LP-PAN2 with a Win4K3Suite.  It didn't take me long to switch back to the LP-PAN2.  The
RSP1 was horrible in crowded band conditions like a contest or a DX pileup... the display and noise floor would pump up and down really bad and was very annoying.  I have been tempted to try the RSP2 which is out now because it has band filtering...

Anyway, the LP-PAN2 setup has 30dB better filtering and the fact that you are taking the IF out of the K3, you also get the rigs band filtering in the mix.  If you want performance and are going to try something other than a P3, I think the LP-PAN2 with Win4K3Suite is the best solution in my opinion.  The SDRPLay is a very simple setup however with Win4K3Suite where
LP-PAN2 and a sound card will require more setup.

For the total turnkey setup, I suspect the P3 might be the easiest... and the performance is going to be great too... it's just more $$$ than the other solutions.

Big thumbs up for Win4K3 Suite however... the latest version also pumps out a UDP feed for the new N1MM+ spectrum display too, which works very well.

Max NG7M

On Tue, Sep 26, 2017 at 11:18 AM, Richard Siegmund Lindzen <rlindzen at mit.edu
> wrote:

> What has been peoples' experience with using SDRPlay with Win4K3 as a 
> panadapter?  How does this compare with the P3?
> 73, Dick WO1I
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M. George
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