R820T and Gnuradio

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/osmocom-sdr@lists.osmocom.org/.

Steve Markgraf steve at steve-m.de
Thu Nov 15 20:47:16 UTC 2012


Hi,

On 15.11.2012 21:11, Ron Senykoff wrote:
> I have gnuradio running with the R820D DVB. Latest GQRX has the nice rf
> gain inside which REALLY helps. Has this been merged over to gr-osmosdr
> ? I recompiled probably just a few days, both from source.

gqrx uses gr-osmosdr as source block, so it's identical.

> I'm trying to figure out how to set gain from within gnuradio (is there
> a argument I can pass the device in the source block?).

Yes, the 'Gain' argument.

> Also using the OSMOSDR block I still see an LO like spike right in the
> middle.

gqrx uses an internal DC offset correction algorithm, which you'd need
to implement in your flowgraph as well if you want to remove the
spike.

Regards,
Steve




More information about the osmocom-sdr mailing list