I repeated the experiments once again today and I got once again the same results. I still keep on randomly getting these 4 cases I attached on a previous message.
I observed that cases 1.png and 3.png have a phase difference of +/- 180 degrees and cases 2.png and 4.png also have a phase difference of +/- 180 degrees. Do you reckon you could help me any further with my problem? I really need to achieve this synchronization for my thesis. Thank you very much. ________________________________ From: Discuss-gnuradio <discuss-gnuradio-bounces+kskyvalakis=isc.tuc...@gnu.org> on behalf of Skyvalakis Konstantinos <kskyvala...@isc.tuc.gr> Sent: Friday, June 11, 2021 12:39 AM To: Marcus D. Leech Cc: Discuss-gnuradio@gnu.org Subject: Re: Phase Synchronize 2 USRP N200 w/ SBX cards Exactly my thoughts as well, I mean regarding the phase ambiguity of the WBX daughterboards, from what I've read on the Ettus website. I am 100% sure the daughterboards are SBX. On Jun 11, 2021 00:26, "Marcus D. Leech" <patchvonbr...@gmail.com> wrote: On 06/10/2021 01:00 PM, Skyvalakis Konstantinos wrote: In addition to my last message regarding the INTEGER_N tuning?, ?I repeated the experiment multiple times. I even restarted the USRPs and the signal generator multiple times. What I observed was, that there were only 4 different recurring phase offsets (Blue = RX2 of SBX1, Red = RX2 of SBX2). I am attaching the 4 screenshots I captured. Thank you so much for your help. I feel like we're getting there. ________________________________ You're sure that you have SBX cards and not WBX cards? Sorry for the apparently-stupid question, but the WBX uses almost the same hardware as the SBX, but uses a 2XLO mixer that has fixed phase ambiguity--which would look like what you have here.
