[USRP-users] time/phase synchronization of 2 X300

Derek Kozel derek.kozel at ettus.com
Mon Oct 30 07:01:50 EDT 2017


Hi Luca,

Any external 10 MHz and 1PPS source will work. The 1PPS is basically a DC
signal so it is best to have a buffer amplifier to split it, but if just
going to two USRPs you may be able to get away with using the RF power
divider as well.

The required signal levels are posted in the user manual and knowledge
base, if you can meet those then the system will work.
https://kb.ettus.com/X300/X310#Ref_Clock_-_10_MHz

Regards,
Derek

On Mon, Oct 30, 2017 at 10:12 AM, Luca Pascale via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hi Marcus,
>
> What about to use an "external" GPS Timing receiver with PPS and 10 MHz
> output and to split them using power divider to provide pps and ref to
> the 2 X300 ?
>
> I do not want to use the octoclok for space saving reasons.
>
>
> Thanks,
>
> Luca
>
>
> > There has never been really-good support for REF OUT and 1PPS out on the
> > X3xx series.  Partially because making it "work right" with the hardware
> > that is in there is more-or-less impossible (length compensation, etc).
>
>
> _______________________________________________
> USRP-users mailing list
> USRP-users at lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
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