His description sounds like it's a Maxtrac or Radius (grounded mic line RJ style telephone jack) but who knows.
As for preprogrammed stuff... there were some astro sabers floating around on ebay that came with a keyloader, DX model too. From what I could gather they came from Ft. Meade (yea, the puzzle pallace) and were ready to roll. Of course, it doesn't matter because the whole system was obviously scrapped but you can't get closer to the "source" than that.
Then there are the freq hoppers and other associated stuff that is readily available on the used market too. The old Transcrypt stuff still works fine and will run from 148-174 at 25-50 hops a second. No scanner on the market will ever know it's there but to the user it sounds just fine.
Good clean fun...
The sky isn't falling.