[USRP-users] Time sync on wideband

Martin Braun martin.braun at ettus.com
Wed Jul 5 20:53:33 EDT 2017


On 06/08/2017 02:48 PM, Андрій Хома via USRP-users wrote:
> Hi,
> 
> I'm using several b205mini and 1pps reference from the octoclock. My
> main goal is to synchronize the time of devices. When I make records at
> 10MHz everything is fine, but when I try up to 20-40MHz I see, as it
> seems to me, an explicit dissynchronization.

10 MHz sampling rate?

> Please, see code to review <https://pastebin.com/iujTrXYN>
> 
> As a result,look at this output
> <https://www.dropbox.com/s/awnlj7nl02vigla/uht_time_sync_output.txt?dl=0>,
> where first column is the device, and second column - metadata timestamp.
> 
> I see that the devices is being launched NOT simultaneously, although
> the timestamps of samples is given the same.

It's not quite clear how to read that file. What if you look at the
signals side-by-side?

-- M




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