Re: [Discuss-gnuradio] Ettus E310 FM Radio

[John B. Wood]

On 11/09/2015 12:46 PM, John B. Wood wrote:
> On 11/09/2015 11:15 AM, Philip Balister wrote:
> > O
> > I wonder if the gain setting needs adjusting for the E310?
> >
> > Philip
> Increasing the RF gain slider doesn't appreciably improve S/N. Make 
> that ditto for the audio gain.  The source of the noise is unknown at 
> this time.  Sincerely,
OK, I just made a discovery.  I think the noise is probably due to 
insufficient S/N at the antenna port (I just have a short length of wire 
connected to the E310 antenna Rx port and I'm inside a building).  I ran 
the frequency slider over the 88-108 MHz range and found some stations 
that had virtually no background noise.  It doesn't sound like I'm 
receiving stereo audio, though, on a station that's known to be 
broadcasting in stereo.



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