Re: [Discuss-gnuradio] USRP2 1pps synchronization delay

Does this describe what you are seeing?

http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg26328.html

On 09/25/2010 08:50 PM, Kelley, Clifford W wrote:
>
> 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
>
>
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