Re: [Discuss-gnuradio] Spectrum Sensing

[Eric Blossom]

On Thu, Nov 02, 2006 at 04:53:11PM -0600, Shravan Rayanchu wrote:
> Does that mean 8Mhz is the max. width of spectrum I can sense? But I
> remember reading on some post that we can sense spectrum upto +/-15MHz
> from the carrier frequency. (i.e. a chunk of 30 Mhz). Which one of the
> above is correct? What puts a limit on the maximum amount of spectrum
> we can sense?
> 
> Also, the in the program "usrp_spectrum_sense.py [options] min_freq
> max_freq", is there a limit on (max_freq - min_freq)?

Just the limit imposed by the frequency range that the daughterboard
can tune.  This is typcally > 100 MHz.  usrp_spectrum_sense steps the
front end in suitable steps so that it can examine a lot of spectrum,
although not all at the same instant.

Eric