At 12/27/2008 20:15, you wrote: >The MaxTrac/GM300 radios use one of several methods for changing channels >remotely: > >1. one input line to revert to a known channel, >2. two input lines: one to go UP, one to go DOWN, >3. four input lines which you program with a binary code: 0000 thru 1111 >to select the desired channel. > >Of the various methods, the one where you tell the radio which channel to >go to is far more reliable. The others depend on you knowing where the >radio is before you tell it to change because there is NO feedback of any kind. > >If you want something that's very user-friendly and may even provide >feedback in some way, you're better off with an Icom, Kenwood, or Yaesu >radio. The Motorola link radios you're using just don't have what you want.
I guess this is a good segway into my request for a beta tester for my remote base interface. After being frustrated over the lack of good choices for remote base radios that can be fully remote controlled, I decided to build an interface that works with the Doug Hall "RBI" serial data format used by Link Comm, S-Com & higher-end CAT controllers to communicate with the long-discontinued RBI-1 remote base interface. My interface has an asynchronous serial output that currently talks to the Yaesu FT-8500 and the Kenwood TM-G707 dual-band mobiles. In theory this unit can be programmed to interface any FM transceiver that can be serially controlled; I just need to acquire the various radios to verify proper operation on each one. I've been using this interface on a local repeater for the past couple of months & now have a couple of prototypes available if anyone is interested. Please e-mail me off list at [email protected]. Bob NO6B
