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Re: Releases v3.8.4.0 and v3.9.3.0


From: Glen Langston
Subject: Re: Releases v3.8.4.0 and v3.9.3.0
Date: Sat, 20 Nov 2021 13:12:02 -0500

Hi Chris,

Thanks for  your reply.

After countless hours of messing around, I partially have 
SDRPlay supported on a Raspberry PI 4 with gnuradio 3.8.2

Within gnuradio and osmosdr source blocks, I have SDRPlay data streaming, but 
I’ve not been
able to turn the bias-tee on or make any sense of the gain settings.

With gr-soapy source

I’ve got trouble getting the stream of data to flow.

with  SoapySDRUtil —find  I do find the device with reasonable values

######################################################
##     Soapy SDR -- the SDR abstraction library     ##
######################################################

Found device 0
  driver = sdrplay
  label = SDRplay Dev0 RSP1A 190316E696
  serial = 190316E696

So, my question is:

Do you (or anyone) have examples of the values to put in
either of the source blocks to control the bias-tee 
gains and notch filters?

Thanks again!

Best regards

Glen

Again this was working perfectly in gnuradio 3.7.13 but is huge headache
in later version.

> On Nov 20, 2021, at 7:54 AM, Chris Vine <vine35792468@gmail.com> wrote:
> 
> On Fri, 19 Nov 2021 10:04:06 -0500
> Glen Langston <glen.i.langston@gmail.com> wrote:
>> Hello Chris,
>> 
>> I’ve seen your emails concerning SDRPlay and gnuradio 3.8 and 3.9
>> 
>> So far, after countless hours, I’ve yet to get SDRPlay working on a
>> raspberry pi with gnuradio 3.8.
>> 
>> My code works fine with gnuradio 3.7, but all the documentation for
>> 3.8 seems to be out of date as everything was broken in the move to 3.9.
>> 
>> Do you happen to have a Raspberry PI OS complete image that works
>> with gnuradio 3.8 and SDRPlay?
>> 
>> If so would you consider posting a copy of the entire OS?
>> 
>> Thanks
> 
> Hi Glen,
> 
> I am afraid I don't have a raspberry pi so I can't help you with that.
> I am now using gnuradio-3.9, but I had a RSP1A working well on x86_64
> hardware with gnuradio-3.8 with the following:
> 
> * gnuradio-3.8.2.0
> 
> * soapy-sdr (repo https://github.com/pothosware/SoapySDR) master branch
>  as at the commit of 2020-07-13
> 
> * gr-soapy (repo https://gitlab.com/librespacefoundation/gr-soapy)
>  master branch as at the commit of 2021-02-16
> 
> * sdrplay-2.13.1
> 
> * soapy-sdrplay (repo https://github.com/pothosware/SoapySDRPlay2)
>  master branch as at the commit of 2020-06-29
> 
> As an alternative to the last two I have also used:
> 
> * sdrplay-3.7.1
> 
> * soapy-sdrplay (repo https://github.com/pothosware/SoapySDRPlay3),
>  master branch as at commit of 2021-01-12
> 
> gr-osmosdr does not work correctly with gnuradio-3.8 with the RSP1A (nor
> very well with gnuradio-3.7 either).  Use gr-soapy instead, or if you
> are using gqrx, use gr-osmosder with the soapy backend (not the "unfree"
> sdrplay backend).
> 
> Hope this helps.
> 
> Chris




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