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[Discuss-gnuradio] USRP2 1pps synchronization delay
From: |
Kelley, Clifford W |
Subject: |
[Discuss-gnuradio] USRP2 1pps synchronization delay |
Date: |
Sat, 25 Sep 2010 20:50:57 -0700 |
We are trying to determine how much delay there is between the 1pps pulse and
when the samples come out properly time tagged. Using a GPS timing receiver we
connected up the 10MHz clock and 1pps to the USRP2. The software is set up to
reset on the next 1pps pulse. With a GPS software receiver we determined that
there is a delay of 3 - 6 microseconds which curiously was 3 with a smaller
decimation and 6 at a higher decimation. We've checked over the setup and
can't find any reason for this. Does anyone have any ideas?
Thanks,
Cliff
- [Discuss-gnuradio] USRP2 1pps synchronization delay,
Kelley, Clifford W <=