This is probably just a quirk of the way the calibrations cache works in the AD9361 chip.
The chip isn’t really designed for fast frequency hopping, and when you retune, internal recalibrations need to happen on the chip, except for small frequency changes. Sent from my iPhone > On Jan 11, 2021, at 6:22 AM, Андрей А via USRP-users > <usrp-users@lists.ettus.com> wrote: > > > Hello > > I testing b200mini in receiver mode and found strange result with tune time . > When I start from 100MHz and tune with step 20MHz at freq 200 -> 220 and 120 > -> 100 get almost 100 times slowly time then others. > When I start form 101MHz time increase only first pass and then all OK. > > Source code and terminal screenshots in attachments. > > Thank you > > <main.c> > <Screenshot from 2021-01-11 13-03-09.png> > <Screenshot from 2021-01-11 13-03-50.png> > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
