...or your locks. Are you locking your reader? What exactly are you locking?
Nikos On Thu, Jul 14, 2022 at 4:28 PM Nikos Balkanas <nbalka...@gmail.com> wrote: > > Hi, > > To set thread priority, you need to add your user to group usrp... > "D" means dropped packages. You are not reading fast enough. > Since your last run was also at 4 Mhz without any "D"s, it seems your > problem is with your hard disk I/O... > > HTH > Nikos > > On Wed, Jul 13, 2022 at 1:39 PM Marta Brkić <marta.brkic...@fesb.hr> wrote: > > > > Hi, > > > > we have problem with collecting GNSS signals for GNSS spoofing by using > > USRP N210 (daughterboard UBX-40), active GNSS antenna (GPSGlonass-36-N-GA) > > and GNSS-SDR. > > Firstly, we followed all steps from GNSS-SDR configuration page and we > > successfully got the position fixes with downloaded file of raw signal > > samples as at the link. > > Afterwards, we tried to get the position fixes with active GNSS antenna but > > unsuccessfully. We set all the parameters as at the instructions at the > > link and ran 'my_GPS_receiver.conf' file. As the result, we got printed 'D' > > (please see screenshots 1 and 2 attached). We tried to solve this problem > > by following the instructions at ETTUS page but nothing worked in our case. > > > > Then, we tried to set the sampling frequency to 2MHz and there was no > > printed 'D' after running the conf file. However, we didn't get the > > position fixes and we only got 'Loss of lock in channel' (screenshot 3). > > We searched for the solution and we wonder if missed something or we do not > > have all necessary equipment (we saw that bias-tee is needed for some > > daughterboards). > > > > We would be thankful if you could help us with our problem. > > > > Thank you in advance and best regards, > > Katarina Radoš and Marta Brkić > > > > _______________________________________________ > > USRP-users mailing list -- usrp-users@lists.ettus.com > > To unsubscribe send an email to usrp-users-le...@lists.ettus.com _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com
