I believe it's a CDMA thing. I have a Nortel GPSTM that came out of CDMA site. It has the same thing.
--------------------------------------- (Mr.) Taka Kamiya KB4EMF / ex JF2DKG On Sunday, September 29, 2019, 9:36:55 AM EDT, Gregory Beat via time-nuts <time-nuts@lists.febo.com> wrote: A new resident arrived at the “Time Cave” this weekend, the HP/Symmetricom 58503B. Just the plain front panel (4 LEDs) model, without Option 1 (VFD clock display). Acquired in USA, cheaper than current Asian exporter. https://accusrc.com/uploads/datasheets/4975_58503b.pdf Supposedly stored in a closet since 2010 (verified by its diagnostic logs), the unit only had 2,000 hours of operation. Today, it happily has a GPS Lock and is currently “re-learning” where the 1 PPS and 10 MHz outputs wandered (taming Lazarus). — One surprise, it has Option 2 (1PP2S) installed on its Rear Panel. Option 002 : 1 PP2S (One-Pulse-Per-Two-Seconds) connector for outputting a pulse every other second, synchronized to the even seconds in GPS time. Pulses occur on even-numbered seconds (i.e., 2 seconds, 4 seconds, etc.). === QUESTION: What Specific Applications would use this 1PP2S output regularly?? greg Sent from iPhone 6s _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.