On Thu, Jun 7, 2012 at 11:27 AM, Phil <phil_...@bigpond.com> wrote:
> On 07/06/12 19:13, Alexandru Csete wrote:
>>
>> On Thu, Jun 7, 2012 at 10:46 AM, Phil<phil_...@bigpond.com>  wrote:
>>>
>>> Another question I'm afraid,
>>>
>>> I've resolved, I think, my previous question about the module path. The
>>> module rtlsdr does not exist on my system even though I have the rtlsdr
>>> library installed. So, I presume that the module has to be created
>>> somehow.
>>>
>>> Moving on, I'm trying to get multimode.py going and again I've run up
>>> against a missing module. This time it's osmosdr and again I have osmosdr
>>> installed but not the module osmssdr.py.
>>>
>>> So my question is, how do I create the module osmosdr so that I can
>>> continue
>>> my way through multimode.py?
>>
>> You have to install gr-osmosdr to get proper RTL-SDR support in GNU Radio.
>> Osmosdr is for the Osmo SDR hardware, gr-osmosdr is the wrapper into GNU
>> Radio:
>> http://cgit.osmocom.org/cgit/gr-osmosdr/
>>
>
> Thanks for your reply Alex,
>
> I have both rtlsdr and osmsdr installed. The applications that I'm trying to
> get going both need either rtlsdr and or osmosdr python modules which aren't
> on my system. So I guessed that I have to build the modules, somehow.

What exactly do you mean by "osmosdr" ?

There is a package called osmo-sdr which is for the Osmo SDR hardware.
You do not need that if you want to use RTL2832U-based dongles.

Then there is gr-osmosdr (note the gr- prefix), which provides access
to RTL2832U-based dongles in GNU Radio.
If you install this you will have both C++ library, python module and
gnuradio-companion block (assuming that you have them in your
PYTHONPATH etc).
On my system it is installed in
/opt/gr-osmosdr/lib/python2.7/dist-packages/ because I used prefix
/opt/gr-osmosdr during compilation (default prefix is usually
/usr/local)

So, which one have you installed, osmo-sdr or gr-osmosdr?

>> I'm wondering why you want to work in python instead of
>> gnuradio-companion?
>
> I have gnuradio-companion installed but that looks even more unfathomable
> than trying to get a python application going.
>
> Do you have a suggestion on how I might get something going using
> gnuradio-companion?

As far as I could see, the python application you referred to was
generated from a gnuradio-companion file called multimode.grc:
https://www.cgran.org/browser/projects/multimode/trunk/
so you can just open up that file in gnuradio-companion.

Alex

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