Motorola actually sells the 'dummy mic plug' that has this jumper in it. I just use Ethernet tools and plugs and a piece of wire and make my own.
Joe M. Mike Morris WA6ILQ wrote: > At 12:45 PM 04/03/09, you wrote: >> Motorola Maxtrac - Radius Mic Plug Pins to Enable CTCSS decode? >> >> Hello groovy guys and gals... >> >> The Motorola Maxtrac, GM-300, M120 and similar Radius Radios >> enable the CTCSS/DCS decoder "on-hook, off hook" with a connection >> through the mic jack/plug. >> >> These radios made/placed into repeater service are sold with >> "jumper plugs" placed into the mic jacks. These plugs are simply >> a single wire jumper looping two pins, which place the radio in >> full time CTCSS decode. >> >> So... the 50 cent question is... does one of you 100% know the >> proper two pins used to enable the CTCSS decoder? I need to make >> a few... >> >> thanks >> skipp >> >> skipp025 at yahoo.com > > As Moto numbers them (with pin 1 being on top), it's pins 3 > and 4 (3 is the hangup box lead, and 4 is ground). > > As ethernet numbers the pins, it's backwards from Moto > and is 6 and 5. > > Years ago I saw a Maxtrac for sale at TRW that had a > mess of Dymo labels on the speaker area of the front > panel. > A closer look revealed that someone had drilled a hole in > the center of the speaker area, and mounted a mini-toggle > switch. It was labeled "PL" and up was labeled "ON", > center was "OFF" and down was "HANGUP BOX". > No comment. > > Mike WA6ILQ > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >

