Hi Ummm…. because you need a 30.72 MHz reference in a 4G base station rather than the TCXO that normally is in the uBlox modules. You can then “carry” the sawtooth into the SDR part of the basestation without a lot of muss and fuss.
Bob > On Dec 21, 2016, at 5:48 PM, Bob Stewart <b...@evoria.net> wrote: > > Hi John, > Could you tell me why one would use choose an LEA-M8F over an LEA-M8T? > Bob - AE6RV > ----------------------------------------------------------------- > AE6RV.com > > GFS GPSDO list: > groups.yahoo.com/neo/groups/GFS-GPSDOs/info > > From: John Haine <john.ha...@haine-online.net> > To: time-nuts@febo.com > Sent: Wednesday, December 21, 2016 11:34 AM > Subject: [time-nuts] u-blox timing modules > > It's worth noting, in case people don't know, that u-blox have a > specific chip & module (the latter being the LEA-M8F) for precision > timing, developed for the LTE (4G) base station market. This disciplines > a low phase noise 30.72 MHz reference to received satellite signals, > GPS/GLONASS/BeiDou. (30.72 MHz is the standard LTE sampling rate.) > > John. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
