Gang - Anybody know of the AN/FGC-29 ? A google search turns up scant little info other than a fair radio manual, (telegraph terminal, technical manual) but during a recent rtty qso between two real greenkeyers, one recalled the an/fgc-29 as the multiplexor that could put 16 75hz tty channels on a 3khz voice channel. I guess they're like modems - you'll need two for a working demo. --Chuck