[time-nuts] Need to measure frequencies of two sources simultaneously

[Brucekareen at aol.com]

If the two frequencies are reasonably separate, an EIP counter such as the  
54x or 57x series could be programmed to select the desired frequency.   
This could be orchestrated through the counter's GPIB interface, or  
alternately, two counters could be used -- one for each frequency.
 
Bruce, KG6OJI