The on-board optional GPS serves two key purposes: 1) Long-term & short-term frequency stability (GPSDO) 2) Capability for unique time-sensitive applications
The first is obvious -- the 10 MHz out of the GPS is used as a reference for the master 983.04MHz oscillator which determines the frequency stability of the radio. The second is more subtle. The GPS' 1PPS and serial are used together to obtain a high accuracy time correlation for RF data across multiple FLEX-6000 Signature Series radios. Initially, only number one above will be realized in software. But future software will have the capability of RF data with high-precision time correlation at its disposal. Imagine what is possible ;-) Order of operations is: 1) make it work, 2) do something cool. Steve Stephen Hicks, N5AC, AAR6AM VP Engineering FlexRadio Systems™ 4616 W Howard Ln Ste 1-150 Austin, TX 78728 Phone: 512-535-4713 x205 Email: st...@flexradio.com<https://mail.google.com/mail/mu/mp/732/?source=na&hl=en> Web: www.flexradio.com *Tune In Excitement™* PowerSDR™ is a trademark of FlexRadio Systems On Saturday, May 19, 2012, Brian Lloyd wrote: > On Sat, May 19, 2012 at 10:37 AM, Bill Dailey > <docdai...@gmail.com<javascript:;>> > wrote: > > > Is there going to be nmea and pps out from the gps to the main board. I > > am asking because if pps was sent to a hardware pin and nmea was sent > > serial to the mainboaed it woul also make a great high precision ntp > server. > > > > SMOP! > > (Small matter of programming.) > > They have to have a channel from the housekeeping processor to configure > and initialize the GPS receiver so you know that channel exists. OTOH, they > might not use the 1PPS. But if they are at all like me, they would have > routed it to the housekeeping processor somehow just-in-case. So far, they > seem to think a lot like I do. (Probably because we all tend to want the > same things.) So ... > > -- > Brian Lloyd, WB6RQN/J79BPL > 3191 Western Dr. > Cameron Park, CA 95682 > br...@lloyd.com <javascript:;> > +1.767.617.1365 (Dominica) > +1.916.877.5067 (USA) > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz <javascript:;> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flexradio.com/ Homepage: > http://www.flexradio.com/ > -- Steve Stephen Hicks, N5AC, AAR6AM VP Engineering FlexRadio Systems™ 4616 W Howard Ln Ste 1-150 Austin, TX 78728 Phone: 512-535-4713 x205 Email: st...@flexradio.com Web: www.flexradio.com *Tune In Excitement™* PowerSDR™ is a trademark of FlexRadio Systems _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
