[time-nuts] Lucent RFTG-m-XO 15MHz -> 10MHz

John Ackermann N8UR jra at febo.com
Sun Apr 13 17:10:46 EDT 2008

The oscillator really runs at 10 MHz and is multiplied to 15 (I think
via a divide by 3, then multiply by 2).  You should be able to bypass
the divider/multiplier circuit and route the original 10 MHz to the
output.  However, I think there is an alarm circuit that looks for the
presence of RF; you need to make sure that isn't bypassed as well.


Bo Granlund said the following on 04/13/2008 04:08 PM:
> Hi everybody,
> Sorry for asking this kind of stupid question, but I've tried to do my best
> with google and it hasn't revealed a lot of decisive results.
> The thing is, I have a Lucent RFTG-m-XO that outputs 1PPS and 15MHz signal.
> I was wondering, how do you go ahead and convert the 15MHz output to a
> 10MHz output? What kind of equipment do I need in between there to make
> this happen?
> I'm really sorry, because I do realize this is a really stupid question, but
> I'm kindof out of ideas, and I'm more of a software guy than an electronics
> guy. :)
> Oh, there is a 10MHz input to the RFTG-m-XO. What is the purpose of this
> input?
> kind regards,
> Bo Granlund
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