> -----Original Message----- > From: Ralph A. Schmid, dk5ras [mailto:ra...@schmid.xxx] > Sent: Saturday, 14 September, 2013 10:14 > To: 'Sylvain Munaut' > Cc: 'Alexandru Csete'; 'Brian Padalino'; 'GNURadio Discussion List' > Subject: RE: [Discuss-gnuradio] bladeRF - gr-osmosdr - gqrx - bandwidth? > > > Probably gqrx or gr-osmosdr treats the gain as a continuous value even > > though on the LMS it's not, there is only a few discrete value. > > They should be harmless warnings. > > Yep, just wanted to mention it > > I played a bit more, and I found that checking the iq balance option makes > things > worse, not better. Maybe the real huge center DC peak is too much? Without iq > balance checked it looks so far OK, much better than without the adjustable > filter, and the previously mentioned situation around 800 MHz is a bit unfair > - I > found that right below the LTE band there is a strong 785 MHz DVB-T > transmitter > that mixes things up a bit. Outside the GSM 900 and 1800 bands the spurs > (spurs? > Signals almost as fat as the original ones!) seem gone with properly adjusted > filter. > > Here some screenshots, taken with 10cm of wire directly plugged into the > bladeRF; sitting on my table :) > > http://dk5ras.dyndns.org/screenshots/ > > > Cheers, > > > > Sylvain > > Ralph.
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