Re: [Discuss-gnuradio] sample time alignment in GRC

2014-06-17 Thread Lapointe, Benjamin - 1008 - MITLL
, 2014 2:04 PM To: Lapointe, Benjamin - 1008 - MITLL Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] sample time alignment in GRC Make sure that you specify that the 2nd X310 uses external clock and 1PPS, and all of them should use time synch of unknown PPS. Also, there has

Re: [Discuss-gnuradio] sample time alignment in GRC

2014-06-17 Thread Marcus D. Leech
:04 PM *To:* Lapointe, Benjamin - 1008 - MITLL *Cc:* discuss-gnuradio@gnu.org *Subject:* Re: [Discuss-gnuradio] sample time alignment in GRC Make sure that you specify that the 2nd X310 uses external clock and 1PPS, and all of them should use time synch of unknown PPS. Also, there has been

Re: [Discuss-gnuradio] sample time alignment in GRC

2014-06-17 Thread Lapointe, Benjamin - 1008 - MITLL
@gnu.org Subject: Re: [Discuss-gnuradio] sample time alignment in GRC On 06/17/2014 09:58 AM, Lapointe, Benjamin - 1008 - MITLL wrote: Hi All, I am still having trouble time aligning sample streams from two USRP X310 devices. In GRC I noticed a random time offset from run to run

[Discuss-gnuradio] sample time alignment in GRC

2014-06-13 Thread Lapointe, Benjamin - 1008 - MITLL
Hi, I have two USRP X310 devices that I am trying to time align in GNU Radio Companion. One X310 has a GPSDO that is sending 10 MHz reference and 1 PPS signals to the other one. The GPS is locked. Ideally I would have matched length cables for 10 MHz reference and 1 PPS, but I think my setup

Re: [Discuss-gnuradio] sample time alignment in GRC

2014-06-13 Thread Marcus Leech
Make sure that you specify that the 2nd X310 uses external clock and 1PPS, and all of them should use time synch of "unknown PPS". Also, there has been a bug in the scope sink (dunno if fixed) where samples are *not* time-aligned in the scope sink. The except is that a complex-pair will be