Re: [Discuss-gnuradio] Ettus E310 FM Radio

[John B. Wood]

On 11/06/2015 02:27 PM, Ron Economos wrote:
> There is a stereo FM receiver in gr-rds. If you delete the RDS 
> specific blocks in the example flow graph (gr-rds/apps/rds_rx.grc), 
> you don't even have to compile gr-rds.
>
> https://github.com/bastibl/gr-rds
>
> Ron
Thanks for that link, Ron.  The person who constructed rds_rx_grc 
certainly expended some effort, IMO.  The flow graph is considerably 
more involved than the wideband FM (monaural) receiver example that 
comes packaged with GRC.  I deleted the RDS blocks and this modified 
flow graph does work with the E310.  The fidelity of the audio would be 
very good except there's a lot of noise coming through.  I don't have 
this with the mono example.  There may be some opportunity for noise 
clean-up once I absorb what's going on with the flow diagram. Sincerely,


                                                        John B. Wood
                                                        U.S. Maval 
Research Laboratory
                                                        Code 5520