I've bought a 3v battery for the TX and fitted it, a red LED blinks when either push button switch 1 or 2 is pressed, so seems to be working.

As for the the RX module (I haven't inserted this yet), the evaluation socket is empty and the PIC16C745 Firmware chip is still in place. I'm tempted to insert the RX module into the J3 Header but haven't.

Not sure what to do next.

Dave