Sorry I had been looking online for a list of all the arguments, then smacked my forehead after hitting rtl_fm --help.... not sure if the same -args apply via gnuradio but I'll see what I can do. I think something I did has helped as the AGC pumping effect isn't happening to me any more.
Thanks, -Ron
On Thu, Nov 15, 2012 at 3:47 PM, Steve Markgraf steve@steve-m.de wrote:
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