Hi Juha, It wouldn't be as simple as it was for me as a developer and as it (hopefully) is for the end user without your hardware mod.
Can you say something more about the residual center frequency difference? Where might it come from? I prepared little test of coherency between the receivers (multi-rtl/examples/test_multirtl.m). Among all the figures that it shows there is a plot of relative phase offset of signals coming from the receivers. In fact I have seen linear phase change on that plot - that corresponds to some central frequency offset. If I know what is the source of this offset maybe I will be able to find some way to fix it in software. -- Piotr W dniu 25.05.2016 o 08:24, Juha Vierinen pisze: > This is awesome! I'll definitely try this out soon. I use one off > python scripts to find the sample offset and the small residual center > frequency difference. This simplifies the process significantly. > > This should make it much easier to implement a passive radar block, or > an interferometry block. > > juha > > On Tue, May 24, 2016 at 4:03 PM, Piotr Krysik <per...@o2.pl > <mailto:per...@o2.pl>> wrote: > > Hi all, > > I want to announce new GNU Radio related project prepared by me - > Multi-rtl: > https://github.com/ptrkrysik/multi-rtl > > It is a Gnu Radio block that combines multiple RTL-SDR receivers into > one multi-channel receiver. > > Only hardware modification to RTL-SDR dongles required is connecting > them to a common clock source (i.e. one of the dongles' oscillator as > Juha Verinen showed once). Each channel can work on a different > central > frequency. > > Everyone who wants to know how it was achieved is invited to read my > github page: > > https://ptrkrysik.github.io > > Best Regards, > Piotr Krysik > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
