Hi, During my tests with DBSRX board, I noticed that using the same Local Oscillator offset tick (by 4MHz) used with the RFX boards in the dbsrx board, enhanced the dbsrx SFDR by about 14 dB as shown in the following figures :
http://rapidshare.com/files/79323579/dbsrx.tar.gz I used 1000.25 MHz sine wave to do the tests. To simulate the dbsrx LO offset I cheated the usrp_fft.py set_freq() function as follows : r = self.u.tune(0, self.subdev, target_freq+4000000) self.u.set_rx_freq(0,4000000) Firas A. -- View this message in context: http://www.nabble.com/USRP---DBSRX-calibration-tp12677545p14509886.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
