Thank marcus for the information , Thou it may be a out of track question , is that possible by using any of the daughter board available to process 100 Mhz of bandwidth ... more correctly what can i do, for Exp: if i want to access a bandwidth of range 105 Mhz ... will usrp be able to support, because as i think gnuradio can support only 8Mhz bandwidth at a time , will we be able to make changes in gnuradio ? .... I highly apologize if any of my question is illogical or out of track.
Thanks On Fri, Apr 22, 2011 at 7:14 PM, Marcus D. Leech <[email protected]> wrote: > On 04/22/2011 01:54 AM, ton ph wrote: > > > > Hi guys , > > I am using DBSRX , now i am trying to trace the data flow in the > > usr-gnuradio . I see AD9862 ADC in the usrp and some of the block > > diagrams , and i think that the daughterboard > > passes the analog signals to the ADC in the I and Q format . Please > > guide me if this is right or wrong ... Thanks . > > > That is precisely correct, yes. Most daughterboards use an analog > quadrature mixer to produce > a complex (I and Q) baseband signal. > > The TV_RX is one that *doesn't* -- it's a conventional superheterodyne > receiver, with a final IF > frequency of (as I recall) 5.75MHz, which is passed to a single ADC > channel, and the FPGA > mixes it down to a complex baseband digitally using a digital > quadrature mixer. > > -- > Principal Investigator > Shirleys Bay Radio Astronomy Consortium > http://www.sbrac.org > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Phenomenon # Life is the most precious phenomenon ever happen ... # Lets pray and give emotional strength to the innocent brave victims of japan.
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