You can tell the "USRP source" block to tune to a specific frequency on a specific time with a "GNU Radio message passing" message. That would be how I'd recommend to implement a scanner.
They're also used for pushing other kinds of data around, yes :) Best regards, Marcus On 09.02.2016 00:13, Abhinav Jadon wrote: > Hi Marcus, > > I was reading your reply. I had implemented a similar system but on a > different band (TV). > I did not understand this section of your reply. > > If you actually want to retune (e.g. because your device bandwidth is > smaller than the Downlink you want to find unused channels in, or > because you want to do EGSM900 and 1800), then things get slightly > more > complicated, and you'll probably end up using message passing and > stream > tags. Still not "complex", but not as conceptually trivial. > > > Why do we require message passing and stream tags for scanning a > frequency band ? > Aren't they supposed to be used for decoding bursty data/communication ? > Can you please elaborate on this further ? > > Thanks > > Abhinav PS Jadon > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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