[time-nuts] Efratom FRS 10mhz rubidium frequency oscillator+ board
GandalfG8 at aol.com
GandalfG8 at aol.com
Sun May 31 15:29:23 UTC 2009
Bob, Fluke.1, is selling these on Ebay, for example item # 290313671907,
and supplies the FRS module itself with an interface board containing the
FRS connector, plus another PCB containing a 15MHz oscillator and assorted
other parts that the FRS interface board plugs into.
Connecting up the FRS itself via the 10 way header on the interface board
is simple enough, most connections are marked and others easily traced, but
there's no information available regarding the other PCB.
Does anyone have any information regarding the purpose of this board
and/or connection details for the fitted 25 way D type and TNC connectors?
Any information on the functions of the various jumper pins would also be
appreciated.
regards
Nigel
GM8PZR
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