[time-nuts] Checking the Frequency of a Rubidium Oscillator

[Brucekareen at aol.com]

I  have an EIP Model 548 counter with a YIG-tuned front end that can be 
programmed  to scan over narrow frequency ranges.  By feeding the rubidium 
oscillator under test into the 10 MHz clock input  of the counter, is there any 
reasonably simple way to directly measure the  frequency of a GPS satellite 
transmission so as to ascertain the accuracy of the  rubidium source?  The counter has 
an  input sensitivity in the order of about –25 dBm -- not sufficient to 
measure  directly from an amplified antenna, but perhaps through an amplifier.  I 
am not sure whether the input YIG  tuner selectivity is sufficient to separate 
transmissions from the various  satellite’s (or are they TDMS?).  What do you 
think?   
Bruce,  KG6OJI
**************AOL Search: Your one stop for directions, recipes and all other 
Holiday needs. Search Now. 
(http://pr.atwola.com/promoclk/100000075x1212792382x1200798498/aol?redir=http://searchblog.aol.com/2008/11/04/happy-holidays-from
-aol-search/?ncid=emlcntussear00000001)