I've experimented some more, connected a GoPro camera in place of the little sony one that comes with the reconn. With that connected I get some kind of signal--a rolling, unsynced picture I guess, with lots of flashes and random stuff. moving the camera changes the video though it's not really recognizable. I can see some recognizable color. The transmitter is the ts351 video transmitter I suspect, or some variation of that. The goggles I bought are supposed to be compatible. I have another 5.8 Mhz receiver and a car back seat video monitor--can't get anything with that either. Connecting power to the transmitter causes that video monitor to wake briefly, but just blue screen, and then it goes off.
Sure is frustrating.