On 07/26/2010 04:00 PM, Matt Ettus wrote: > > Even if you lock the USRP2 to an external reference, there will still > be drift relative to other things not connected to the same > reference. The function generator has its own clock, as does GPS. > > Matt > > Somewhat disturbingly, I've also observed in the lab phase-hits between two GPS receivers, being fed from the same antenna! I suspect differences in the phase locking algorithms or something. But you can't even rely on GPS to be consistent with itself (at least viewed by two different GPS receivers!!).
-- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio