Re: [Discuss-gnuradio] problems with benchmark_ofdm and N210

[Marcus D. Leech]

On 06/08/2011 09:51 PM, Morgan Redfield wrote:
> Ok. I found another problem in my code. The transmit_path has a
> multiplier in it that was set to 200 (it could go up to 32768). This
> was for the original USRP, but I think UHD needs a signal with
> magnitude<=1. It seems like the signal was probably clipping. I
> changed the magnitude of the multiplier and fiddled with the gain
> parameters a bit. I'm now able to get the standard boxcar that I
> expect for OFDM. There's still a spike at the center frequency though,
> I don't see a gap.
>
> Thanks,
> Morgan
If you're doing these tests over-the-air, is it possible that there's a 
signal on TV channel 44 around you?
  Channel 44 starts at 650MHz.



--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org