[time-nuts] Ebay FE-5680A Rb: Are they that good?

gsteinba52 at aol.com gsteinba52 at aol.com
Thu Dec 8 21:04:04 EST 2011

How does one tell of the -5690A has 'Option 2', which is the ability to 'tune' the device via the RS-232 interface?

Is there a particular ebay seller with the appropriate units?


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