[Elecraft] SDRPlay as panadapter

[Wes Stewart]

Part of the reason is explained in my eham review.  Note that I'm not the only 
one to complain about SDRUno, maybe just the most blunt.

That said, I began to take it as a challenge to make it work, (my XYL thinks I'm 
nuts) until I connected my tuned 30-meter dipole to it and tuned WWV on 10 MHz 
and was able to copy a local AM broadcast station on 830 KHz at the same time.  
It took at least 20 dB of additional attenuation to eliminate the problem (and 
WWV), and this thing is supposed to have BC notch filtering.

My SDR-IQ doesn't flinch under the same conditions even though it takes 40 dB of 
attenuation to keep it out of overload when tuned to KFLT on 830 KHz.  I've 
measured their daytime (50KW) signal at -3 dBm on my 160 inverted-L. That's 
S9+70, but it's what I have to live with, so either I have a defective RSP or 
it's a design I can't live with.  Either way, it's going back.

Wes  N7WS

On 9/27/2017 4:36 PM, Mark E. Musick wrote:
> Hi Wes,
> Why are you returning the RSP2pro?
>
> Mark, WB9CIF
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Wes Stewart
> Sent: Wednesday, September 27, 2017 10:21 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] SDRPlay as panadapter
>
> I bought an RSP2pro last week.  I just got off the phone with HRO arranging its return.
>
> I too use an SDR-IQ as a panadapter and as a decent lab spectrum analyzer if you are careful and know what you're doing.  Actually, I have two K3s so I have two SDR-IQs.  SpectraVue software is the only SDR software I've ever liked.  It interfaces with the K3 seamlessly.   Every other program I've tried has been installed and quickly uninstalled.  Sometimes more than once, usually having me ask myself, "Self, what were you thinking?" before uninstalling again. Apparently, programmers do not think like normal people do and try to turn a relatively simple tool into a video game.
>
> Wes  N7WS
>
>
> On 9/26/2017 10:11 PM, Edward R Cole wrote:
>> Don't have the SDRPlay, but do have a SDR-IQ which operates using
>> Spectravue quite nicely.  Noise floor below 550-KHz is -130 dBm and
>> with antenna noise varies -115 to -95 dBm in the 600m band.
>>
>> I typically use it on the 28-MHz IF of my VHF and higher transverters.
>>
>> I bought two LP-Pan1 (with mod to LP-Pan2) which are connected to my
>> K3 main and subreceiver's IF's.  I can run them as panoramic band span
>> through a Delta soundcard for up to 192-KHz bandspan. The LP-Pan are
>> tied to a single LO for coherent dual IQ to recover diversity reception.
>>
>> 73, Ed - KL7UW
>>    http://www.kl7uw.com
>> Dubus-NA Business mail:
>>    dubususa at gmail.com
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