Two Receivers

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dtaviation
Posts: 5
Joined: Sun Jan 24, 2016 1:59 am

Two Receivers

Post by dtaviation » Fri Aug 26, 2016 3:53 am

I have two SDRplays, but I do not see a method in the API for addressing more than one unit. Is this possible?

Thanks
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Misterj
Posts: 63
Joined: Wed Apr 06, 2016 6:40 pm

Re: Two Receivers

Post by Misterj » Fri Aug 26, 2016 6:49 pm

dtaviation, you don't say what software you are using - assume SDRuno. Please look at this for an obvious solution. I have not tried it, but I suspect SDR-Radio will support multiple radios. Enjoy, John.

Question for Moderator - How many of my posts must be vetted before they are posted?
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dtaviation
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Re: Two Receivers

Post by dtaviation » Fri Aug 26, 2016 9:59 pm

I'm writing software using the API. RTL SDR dongles have an index in order to select which of multiple dongles are plugged in. I do not find such a thing in the SDRplay API.
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Misterj
Posts: 63
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Re: Two Receivers

Post by Misterj » Sat Aug 27, 2016 2:59 pm

dtaviation, I opened SDR Console (SDR-Radio) then Select Radio - Definitions and see that AirSpy has a serial number but my SDRPlay does not. I don't know what happens if I plug in two SDRPlay radios but you might try it. It looks like the developers need to answer your questions. Have you tried the Contact page? Sorry I could not help. Enjoy, John.
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F1BJB
Posts: 118
Joined: Wed Jul 15, 2015 4:24 pm
Location: Beauvais France

Re: Two Receivers

Post by F1BJB » Mon Aug 29, 2016 8:57 am

Hi
That is a good question.
With 2 identical RTLSDR dongles I had problems too.
But sometimes it is simpler to use 2 or more devices instead of a complex mixing/switching antenna setup.
As a bonus you can run them at the same time .
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Misterj
Posts: 63
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Re: Two Receivers

Post by Misterj » Tue Sep 06, 2016 9:14 pm

dtaviation, while I was doing some testing on VirtualBox (a virtual machine application), I see this in their USB manager when my SDRPlay is plugged.
Image
Maybe there is some useful information here.
Enjoy, John.
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n2ic
Posts: 27
Joined: Sat May 28, 2016 7:26 pm

Re: Two Receivers

Post by n2ic » Tue Sep 13, 2016 5:05 pm

I also would like to see an answer to this question from the SDRPlay development team.
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n2ic
Posts: 27
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Re: Two Receivers

Post by n2ic » Tue Sep 13, 2016 5:08 pm

I also have a need for support of 2 receivers. What say, SDRPlay development team ?

Steve
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sdrplay
Posts: 978
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Re: Two Receivers

Post by sdrplay » Wed Sep 14, 2016 12:41 am

Multiple RSP devices work (I regularly test 3 at the same time just fine on Windows) - you access them in the order that they are connected to the bus. Just be careful of bandwidth and make sure you don't connect more than 2 on a given USB hub. You can use something like USBView to make sure.

Best regards,

SDRplay Support
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Misterj
Posts: 63
Joined: Wed Apr 06, 2016 6:40 pm

Re: Two Receivers

Post by Misterj » Wed Sep 14, 2016 3:21 pm

With some research, I found that the RSP has firmware (MSI2500). It is loaded by the driver at connect time. I have also seen articles describing how to change the serial number of the RTL dongle so they can be distinguished in SW. I would think if the SDRPlay team could give the user access to the firmware (update) there might be a path for a similar process. Enjoy, John.
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