Hi Marcus,
The external 10MHz did the trick. I have another related question which I
think we can address here without opening a new ticket. The USRP B210 has a
1PPS port. However, I was not able to poll the status of the time source,
"pps_locked". When I searched for a list of all onboard sensors
Hi Ben,
The SOB signal is essentially ignored by the USRP Sink block. If data is
sent, the SOB is assumed and data is transmitted even if the SOB is not
set.. TX samples not intended to be transmitted must not be sent to the
USRP Sink block. The EOB, as Phillip pointed out, tells the USRP Sink
Hi Moses,
The PPS input is just a trigger that is used to set the time on the
device. There is nothing for it to lock to and currently nothing that
detects the presence of the signal. Setting the clock and time source on
the USRP Sink/Source blocks to external and the Sync to "unknown PPS" will
Hi Moses et al -
I spend a lot of time working with B210s on a shared 10MHz clock and PPS
source:
Some cheap GPSDO products, e.g. from EBay, work - but it's not clear if they're
using BeiDou (or other system) as opposed to (US) GPS, and
Many that advertise 'four clock channels' actually hav
Hi Walter/Moses,
I spent the last 10 years developing the UHD code for all the USRP
devices, including the B210. I can tell you definitively that there is no
"pps_locked" sensor and the "ref_locked" sensor is valid for any clock
source (internal, external, or onboard GPSDO) and it indicates that
Thank you, Michael!
> On May 17, 2024, at 14:34, Michael West wrote:
>
> Hi Walter/Moses,
>
> I spent the last 10 years developing the UHD code for all the USRP devices,
> including the B210. I can tell you definitively that there is no
> "pps_locked" sensor and the "ref_locked" sensor is va
