On the FE-5680A, there are quite a number of versions that have that
number and look the same. Most run from one voltage input (+15V ? from
memory) but some take that and a +5V to run. Most can be tuned with
software, but the dual voltage one I got some years back -- I never
found a way to calibrate it. So the 5680A is a bit of a crap shoot
unless you know exactly what you are getting.
If I remember right the FRS-C was not very good for phase noise.
On 7/10/2011 4:37 PM, Dr. David Kirkby wrote:
I'm looking to get a rubidium source to use as a reference for a
spectrum analyser, frequency counter or similar test equipment. All
these need a 10 MHz input.
I've looked on eBay and found a few that seem to be in plentiful supply
* EFRATOM 10MHZ LPRO-101
* FE-5680A
* SLCR-101
* Efratom 10MHZ Rubidium FREQUENCY Standard FRS-C
Is there any reason to chose one over another for the application I have?
Is there any seller to avoid or you can suggest is particularly good?
I want to import this to the UK, but are not bothered where it comes
from, as long as the seller is reliable.
Dave
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