Has anyone had issues with the E320 GPS locking or staying locked? I have a LabSat GNSS simulator that I am reliably able to get a E310, X310, and even a N310 to lock to however the E320 I just got will occasionally lock and then fall out almost immediately. I used mender to up it to 3.15LTS and everything else works pretty well. I run the e320bist on the gpsdo and it reports it mostly being unlocked but occasionally it will lock for a minute or so. When it does lock I can run the query gpsdo immediately after and it will report locked but again it only lasts for a min or so. Thanks Jeff

Hey Jeff, What type of GPS antenna are you using? 3.3V or 5V? If it's compatible with X310 & other USRPs, I would imagine you'll be good to go with the E320... Do you see the locked / unlocked status change between consecutive runs of something like gpsmon on the E320? There were some early-ish runs of the E320 that are eligible for a GPSDO rework, feel free to send support@ettus.com a direct email with your E320's serial number and I can see if yours is one of the affected units. Sam Reiter On Mon, Mar 23, 2020 at 4:27 PM Long, Jeffrey P. via USRP-users < usrp-users@lists.ettus.com> wrote: > Has anyone had issues with the E320 GPS locking or staying locked? I have > a LabSat GNSS simulator that I am reliably able to get a E310, X310, and > even a N310 to lock to however the E320 I just got will occasionally lock > and then fall out almost immediately. I used mender to up it to 3.15LTS and > everything else works pretty well. I run the e320bist on the gpsdo and it > reports it mostly being unlocked but occasionally it will lock for a minute > or so. When it does lock I can run the query gpsdo immediately after and it > will report locked but again it only lasts for a min or so. > > > > Thanks > > Jeff > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >