DennisB wrote: > Howdy, > > I'm about ready to buy some 2.5mm and 3.5mm cables to connect an Icom-02A HT > to a Tracker2. > I've got two IC-2ATs and one IC-02AT. What you are proposing will work well for both HTs.
If you're buying cables with the 2.5mm & 3.5mm plugs already installed, i.e. "patch cords", that's what I've done as well. Installing those little phone plugs on bare cable is a pain. I bought cables long enough to cut in half so I could make two sets. > Has anybody got this combination to work? > I don't have a Tracker2, but it works with my Byonics TT3's and TT4's and my IC-2ATs and my (slightly) newer IC-02AT. I'm almost certain the Tracker2's radio wiring and signals are pretty much identical. > The pinouts I've found show, a .22uf cap going to the mike audio and a 3.3K > resistor going to the PPT. > > Are these necessary ?? > No, the C and R are NOT required with the TT3 and TT4. I don't have the Tracker2 schematic handy right now, but I'm almost certain they aren't used with it either. Many older full-blown TNCs, such as the MFJ-1270 series do require the C and R, which is fairly easy to install in the TNC plug's (frequently a DIN-5) backshell. > Thanks for any help !!!! > > DennisB W7IME > > Barry N4MSJ
