Dear All: I need to calibrate my USRP with Flex900 daughter boards to take real world measurements in dBm. But I am confused with the gain parameter that is used in usrp_fft.py.
1. Not sure whether the RFX900 board has a PGA of its own 2. Or is it just the AD9862 PGA before the ADCs 3. The gain bar/parameter varies over 0-90, what does this represent? 4. When you increase the gain from 0 till 30 or abouts there is no change in the noise floor? why is that? If you have any docs that I can go through to understand the gain characteristic, please. Kind regards, Shabbir -- View this message in context: http://www.nabble.com/USRP-FLEX900-Daughter-Boards-Calibration-tp24717348p24717348.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
