[time-nuts] Discipline a rubidium driven net4501 with a Garmin LVC 18?

Mark Sims holrum at hotmail.com
Fri Oct 15 16:26:39 UTC 2010


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? 		 	   		  



More information about the Time-nuts_lists.febo.com mailing list