[time-nuts] using Fury GPSDO with Rb

SAIDJACK at aol.com SAIDJACK at aol.com
Fri Apr 11 20:09:21 EDT 2008


Hi Scott,
 
be careful, 5.5V at 50% duty cycle is about 21.5dBm into 50 Ohms.
 
The Fury will probably not be damaged, but it is outside of it's spec,  so 
you are overdriving it.
 
3.3V CMOS outputs are much preferred if a sine output is not  available.
 
A simple solution could be a resistive, or capacitive divider, say two  220pF 
caps in series with the center tap going into the Fury GPSDO.
 
bye,
Said
 
 
In a message dated 4/11/2008 12:43:09 Pacific Daylight Time, smace at intt.net  
writes:

I think  the max for the FRS is 5.5v into 50ohms.

Scott





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