Many... but a lot boils down to the fact that the Tbolt is designed from the ground up to be a time (and frequency) source. Its 1PPS output can be stable to within a few nanoseconds and the frequency to a few parts per trillion. The Garmin 1PPS output is spec'd at 1 microsecond, plus you get no frequency source.
The LPRO seller is almost certainly getting his LPROs from the Chinese recyclers, just like everybody else. You can get a complete LPRO kit delivered to Germany for $80 (or less). Tbolts for a few dollars more. Ebay is your friend. Search for RUBIDIUM and you will also find a guy selling a divider card that takes the LPRO output and generates several clocks, including 1 Hz... cheaper and more versatile than the FATPPS ----------------------------- Is there any specific reason why a 1PPS signal from another source (like a Thunderbolt GPS disciplined clock) together with a FatPPS board would give better results as my Garmin approach? _______________________________________________ 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.
