Use a resistor and cap to inject bias on the mic line. Robert...
--- In Repeater-Builder@yahoogroups.com, Mike Morris WA6ILQ <[EMAIL PROTECTED]> wrote: > > At 10:47 AM 09/03/08, you wrote: > >I am constructing one of the "repeater-builders friends'", and am in > >need of a DTMF pad, or suggestions. I have a Motorola DTMF mic that I > >picked up from someone @ work. I have tried it direct into the > >controller, through a pot, and through an amplifier w/ a matching > >transformer on it. The controller is an ARCOM 210 and it does not > >seem to be picking up the tones no matter what I try. The controller > >is brand new, and was purchased assembled and tested, so I can only > >assume that it is fully functional. > > > >Any help or suggestions would be appreciated. > > > >Jeremy > > > >KB3BAM > > Check out <http://www.pipo.net/> > > I've used the PK3 a couple of times: > <http://www.pipo.net/productlis2.htm> > > Good stuff. Joe Oliveira is good people. > > Mike WA6ILQ > ------------------------------------ Yahoo! Groups Links
