Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200

2013-04-04 Thread Zooz Engineer
be sync? Best regards, Zo Subject: Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200 From: i...@ionconcepts.com Date: Wed, 3 Apr 2013 11:59:20 -0700 CC: discuss-gnuradio@gnu.org To: xtmpcvs...@hotmail.com Zo,Have you tried swapping cables between USRP's? both REF/PPS and signal (one at a time

Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200

2013-04-04 Thread Ralph A. Schmid, dk5ras
@gnu.org [mailto:discuss-gnuradio-bounces+ralph=schmid@gnu.org] On Behalf Of Zooz Engineer Sent: Thursday, April 04, 2013 10:37 AM To: Ian Buckley Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200 Dear Ian and All, Although I tried what you have said

Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200

2013-04-03 Thread Zooz Engineer
Hi Marcus, Thanks for replying. I did the following test after your comments: 1- to rule out the scope sink problem, I used a file sink and plotted the output using octave: Same results observed. 2- I took the outputs of the splitters to the oscilloscope and there are aligned. Are there

Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200

2013-04-03 Thread Ian Buckley
Zo, Have you tried swapping cables between USRP's? both REF/PPS and signal (one at a time) to see if the apparent phase differences follow particular cables/signal paths? On Apr 3, 2013, at 2:32 AM, Zooz Engineer xtmpcvs...@hotmail.com wrote: Hi Marcus, Thanks for replying. I did the

Re: [Discuss-gnuradio] Synchronizing 3 USRP-N200

2013-04-02 Thread mleech
On 02 Apr 2013 14:01, Zooz Engineer wrote: Dear All, I am having an issue with my 3 USRP-N200 synch. I use external synch sources for Ref/PPS. The LED's for Ref signal are green and the PPS test is successful for the three boards. However, when I input a sinusoidal signal split and fed