The OT2 does have a 0.1uf blocking cap on the mic input. With the separate PTT wire you should not use the HT jumper.
For the colors listed below: RED -- SPEAKER -- OT2 PIN 5 WHITE -- MIC ---- OT2 PIN 1 BLUE -- PTT ----- OT2 PIN 3 BLACK -- GND ---- OT2 PIN 6 If you got the cable from Argent Data, Scott does note that some of the cables came with the blue and black wires swapped. So you will want to check the wiring from the pins to verify the connectivity. Larry K7YBZ --- In [email protected], "Alan" <a...@...> wrote: > > Don't think mot combines PTT on tx audio line. They often will put regulated > + voltage on Mic line to power hand mics that need power. A small cap will > isolate the +v off the mic hi line. OT2 might already have a cap on mic > input, not sure. > > Red - Speaker > White - Mic > Blue - PTT (if used) > Black - Ground > > Argent has a cable > http://www.argentdata.com/catalog/product_info.php?cPath=21&products_id=71 > > Alan > > > > --- In [email protected], "wbirriel" <wbirriel@> wrote: > > > > I tried using the OT2m with a Motorola GP300. The GP300 and the P110 use > > the Mic output also for the PTT. I proceeded to set the HT jumper just > > like it says on page 7 of the Tracker 2 manual to enable PTT signaling > > through the output line, after setting the jumper the PTT was stuck on. > > Nothing made it set to off except removing the jumper. Does anyone have > > any idea on what I should do to make it work properly? > > > > Walter > > KJ4TUW > > >
