--- In Repeater-Builder@yahoogroups.com, Ed Yoho <w6yj_ya...@...> wrote: > > tait700 wrote: > > --- In Repeater-Builder@yahoogroups.com, "ki4vdp" <ki4vdp@> wrote: > > > >> > >>Hello Chris, > >>What model T-800 repeater are you working with. I should be able to help > >>you. > >>Gary > > > > > > Thanks Gary, > > > > The Module is T856 UHF 400-512mhz. > > I assume that the Gnd in the Mic goes to the shield on the plug but i am a > > little dubious about taking a chance with the other two terminals. > > This module is not mine and letting the smoke out if i get it wrong could > > be a little embarrassing :-) > > > > Thanks for your reply, > > > > Regards, > > > > Chris S. > > > > > > > > On the schematic, the mic jack is wired: > 1. gnd > 2. mic in > 3. ptt > > Can't say the ring is 2, but you can be sure by measuring the voltage on > pins 2 & 3. The audio in is AC coupled and does not have any bias > voltage on it. The PTT line is tied to +9V via a 10K pull up resistor. > > Ed Yoho > W6YJ > Thanks Ed,
Appreciate you taking the time to reply and the info supplied. Regards, Chris S.
