Nate, That's one reason I never built the interface. The mic has a couple user-programmable "macro" keys, but those don't use DTMF. They're hardwired. That in inself was not a big deal, still easy to interface through the mic connector, but we would have needed more of them to handle all the needed functions normally accessed by separate front-panel switches, especially on three bands.
We actually thought about brewing a separate DTMF-accessible board just to interface the front-panel buttons, but by that time we were all glassing over... Paul, AE4KR ----- Original Message ----- From: Nate Duehr To: [email protected] Sent: Wednesday, May 07, 2008 12:17 PM Subject: Re: [Repeater-Builder] Re: Still looking for an RBI-1; maybe I have to buil... Paul Plack wrote: > I have a Kenwood TM-642 (with modules for 2m, 6m and 220) which was > obtained years ago for the purpose of setting up a remote base off a 440 > repeater I had in Orlando FL. I realized when I looked at the schematic > that all the funtions of the radio which could be controlled from the > mic's keypad, including direct frequency entry, were sent to the radio > as DTMF while PTT was NOT active.. I can confirm that the TM-732A also does this, if that helps anyone. I'm not sure that EVERY single function of the rig is possible, though. (For example, any function that REQUIRES the use of a front panel button, may not have an equivalent on the mic. But most did.) Nate WY0X

