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
