Re: [USRP-users] Rotating constellations and varying LOs with USRP B210 + Board Mounted GPSDO

2017-09-05 Thread George Sklivanitis via USRP-users
Hi Marcus, Things improve when I am using external REF and PPS from an octoclock module. Thanks, George On Thu, Aug 31, 2017 at 10:08 PM, George Sklivanitis < george.sklivani...@gmail.com> wrote: > Hi everyone, > > Has anyone noticed unstable LOs or carrier frequency offsets when using > USRP

[USRP-users] Rotating constellations and varying LOs with USRP B210 + Board Mounted GPSDO

2017-08-31 Thread George Sklivanitis via USRP-users
Hi everyone, Has anyone noticed unstable LOs or carrier frequency offsets when using USRP B210s with board mounted GPSDOs? We have recently been doing field tests using GPS-disciplined oscillators for both USRP B210s and USRP N210 and occasionally both transmitter and receiver flowgraphs lose GPS