True, but the reason was likely to prevent the 'button press' when the PTT was active. How many times have you hit a button accidentally on a DTMF mic? In the commercial world, most would not have understood what happened - especially if the controller mutes DTMF (which most commercial controllers do not).
Joe M. [EMAIL PROTECTED] wrote: > At 9/6/2008 07:26, you wrote: >> I bet I can take *any* controller and connect >> it in such a way it will not decode DTMF tones. ;-> >> >> That said, two things to remember about Motorola DTMF mics. First, the >> bias was already mentioned. If the mic isn't getting voltage, how could >> it ever produce DTMF tones? Second, many times the Motorola mics are >> wired to NOT produce tones when the mic button is pressed. I modified >> mine to produce them when the PTT is in. > > Ditto on the Kenwood KMC-18. Drove me nuts until I realized that. Must be > a "commercial" thing, as I don't know of any ham DTMF mic that works that way. > > Bob NO6B > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >
