Hi all I have been advised by a friend that he has the above to dispose of.
I do not want to be involved so if you are interested I suggest you contact
him directly. He does not want to be involved with the hastle of eBay again.
[email protected]

As far as I am aware the SPM-12 ( a 200Hz to 6MHz Selective Level Measuring
set ) has the synchroniser digital frequency display and the 25Hz filter
options fitted. The PS-12 ( a matching generator with -60 to +10dBm output )
will track the SPM frequency with the addition of just a BNC coax patch lead
between the units, and then acquires the staility of the SPM.....good enough
for 30sec QRSS all night long, though not quite as good as an oven derived
reference. When used as a receiver it should be remembered that the SPM has
no pre-selection so may be more prone to IMD than a modern purpose-built
receiver. Nevertheless they work very well. This unit does not have the
demodulater option fitted, but that can be overcome by using Alberto's
SDRadio software directly on the ID (10kHz) output.

I think he has an operating manual on CD and I have a manual, and circuit
diagrams fo my own units
Cheers de Alan G3NYK