In om on Sun, 1 Nov
2009 15:08:24 -0800, in rec.radio.amateur.boatanchors, 'Richard Knoppow'
wrote:

The JX-17 was intended for diversity operation and has
connectors for the IFO (second conversion oscillator)

Just out of interest, how long has diversity encoding been around? I
thought of it as relatively modern, and I've only read about it from the
POV of digital signals. Is there anywhere anyone'd recommend for a bit of
research? Something semi chronological would be nice.

Dave J