Dom, you've got a M110 havn't you? Does it do CoS - carrier operated switch on receive? I'm having some problems with using VoX and wondered if you've got it to work there. Last time I checked I didn't get any signals on pin 8 at the back when squelch was opened, but that was a different (UHF) rig I think. I'm running CTCSS now (PL in motorola speak) and guessing I might be able to connect CTS or whatever to pin 8 on the M110?

Have you had any luck?