I spotted in the data-sheet that to get a noise figure of 4dB a voltage gain of 50dB is needed.
My experience has been that a voltage gain above 20dB makes the receiver go haywire. However, I may need to review this assumption. BR/ Per On Tue, 2010-10-19 at 20:14 +0200, Per Zetterberg wrote: > Hi List, > > I have previously claimed on this list that I have measured a noise > figure of some 4dB on the XCVR2450. However, I probably made the > following mistake: I used a CW of 2.4GHz as signal. However,there is > spurious at 2.4GHz which I mistook for being my desired signal. The > signal generator and the USRP2 was locked so there was just a single > peak. > > When I measured today I got a noise figure around 25dB. I wonder if it > can be noise from the transmitter chain which is leaking into the > receiver...... > > BR/ > Per > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
