On 19 Dec, 2011, at 11:25 , Rob Kimberley wrote: > There was a spec issued many years ago to the industry from Lucent I believe > to come up with a GPS product for base station requirements. 10 MHz, 1PPS, > OCXO, RS-232 port, and a certain holdover spec. The Thunderbolt was one, > Starloc another, NanoSync (from Odetics/Zyfer). There were others. > > Rob Kimberley
I think it was actually Qualcomm. The requirement for GPS time and 10 microsecond time synchronization (which informs the holdover spec) came from Qualcomm's CDMA specification and are unique to it. GSM, UMTS and (I think) LTE base stations can get by without GPS at all. Dennis Ferguson _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
