[time-nuts] New pics of RFTG-m-Rb, and some comparison details

John Ackermann N8UR jra at febo.com
Mon Jan 1 09:47:14 EST 2007


Jason Rabel said the following on 12/31/2006 09:45 PM:
> The two units go in (what was told to me) an open frame chassis, it has SMA
> and I believe DB-15 connections along the top. The connections on the
> chassis split the signals even more, presumably for routing to the rest of
> the cell.
> 
> http://campus.pari.edu/k4cso/gps/Lucent/
> 
> I was able to contact the guy that owns that unit, but his XO was hit by
> lighting a while back and it's currently out of action, so he wasn't able to
> give me info on any signaling, just the cable pinouts.
> 
> I would assume you could use the XO by itself, since it has the GPS. Then
> optionally connect the Rb for longer holdover. From what I was told, on
> initial power up the XO is the primary until the Rb warms up, then it
> switches to the primary and the XO LED changes to standby.

Interesting that the units in the pics are "RFTG-m-II-".  Mine don't hav
e the "II" in the number, and my outputs don't say that they are +23dBm
(which is a hell of a stiff output-- 200mw).

John



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