[time-nuts] Samsung GPSDO : Chinese surplus

Mark Sims holrum at hotmail.com
Thu Sep 20 18:58:49 EDT 2018

All the UCCM receivers have a EXT option...  but most refer to it as LINK.   Heather sets it to GPS on startup.  I believe LINK/EXT selects an external PPS/PP2S provided by the base station.  I think  they normally operate it in GPS mode and switch to EXT if the GPS goes down.


> I'm still intrigued though by the very existence of that EXT/GPS software switch as a configuration option for the GPSDO itself, and wondering just what EXT might actually imply in this instance. 

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