[R-390] R-2144A Off-topic long shot question

[John Lawson]

  Does anyone within the sound of my keyboard have any info at all on the 
R-2143A/URR (HF) and/or R-2144A/URR (VHF) recievers? Or possible 
'pointers' to such info?

These are 'black box' type units - just a case and connector, designed for 
external control.

  My usual sources are silent on these devices - made by Hughes / Raytheon for 
ECM and tactical roles in the mid-80s.


   I would especially love to have the communications protocols and I/O 
wiring... the HF radio covers .001 to 32 Mhtz in 4 bands.  Yes, that's 10Kc...

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Cheers

John  KB6SCO