[time-nuts] Results with second FE5680A

Chuck Forsberg WA7KGX N2469R caf at omen.com
Sat Jan 21 16:58:42 EST 2012


This is a phase plot of my number two 5680a vs Thunderbolt.
The X axis is in seconds, Y is phase difference measured by
a Racal-Dana 1992 counter with GPIB interface.  The big spikes
are markers representing human interaction, typically changing
the frequency offset command.

I calculate the daily drift to be about 5e-11 which compares to
the spec of 2e-11 per day.

The other 5680a, the one that pulls 340 ma from the 5 volts,
is far better than this.

-- 
Chuck Forsberg WA7KGX N2469R     caf at omen.com   www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
   Omen Technology Inc      "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430

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