As can be see, the RA117 cleaned up rather nicely. Performance is also quite astonishing.
As usual, SSB reception is more than acceptable provided you don’t overload the detector.
For this reason it is sometimes necessary to add in attenuation at the front end
and/or back off the IF gain. According to the manual, the signal-
So this completes my Racal collection for the moment:
Below the bench, left to right … RA17 N664, RA17L N8854 and RA117 N0489
Above the bench and going up … MA197 Pre-
I also have an RA218 ISB adapter which is missing the 18KHz crystal. These obscure
LF dual crystal devices are virtually impossible to come by, so I have designed and
built a modern solid-