Hi Charles,
NO, not easily. ! What we do know is that the rash of Rb's sold in the
last two or three years with the label tag P/N : 217400-30352-1 are in
fact the newer digitally controlled versions.
Mainly you would need to compare pictures from the two versions which
are available on the internet. For the newer digital version you can
see pictures at the following site :
https://plus.google.com/photos/109928236040342205185/albums/5680473650837554113/5685636673930493138#photos/109928236040342205185/albums/5680473650837554113
At the moment I do not recall where the older model is. But as I recall
it was covered in a couple of PDF files by people who were showing how
to connect and other such data about the older version.
Bill....WB6BNQ
Charles Steinmetz wrote:
Bill wrote:
There are two types of FE5680's. The older style used an ANALOG
approach to controlling the Rb. The newer version changed the
circuitry so that frequency control was done with a DDS device by
means of sending a digital word to the DDS and thus changes
frequency. The digital version does not permit any ANALOG control.
Instructions for determining which version one has would make it
easier for potential users to decide if they want a controller.
Preferably, without opening it up or turning it on, if that is
possible. Can you tell by the label, for example?
Best regards,
Charles
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