Both the MTX8000 B5 & B7 models are Type II Trunking. If you are (un)lucky enough you might find an F3 modem that does Type II.
If it is an MTX8000 and has a front mounted display with either a 6 button or full keypad, you have a radio that will do Type II.
There were a few B3's that were Type II produced by Motorola. However, you can clone a Type II code plug into a B3 radio and it will work just fine.
You can run system watch using a MTS2000 handheld. Firmware version has to be above 5.44 (which has a 512k controller in it). Most MTS2000/MTX8000's only have a 256k controller, which will not work. You can put the radio into RF modem mode from the F4-F4-F4 (Trunking Config).
When the radio is in the RF MODEM mode, it will do a self test and then the screen will go blank. The radio DOES NOT have to be programed to the system you want to watch. You set SYSTEMWATCH to the Spectra with RIB mode (works best). Even watches Type I systems.
If you have the accessory adapter for the side connector on the radio, the typical schematic of the speaker mic looks like this
If you are using a Public Safety speaker mic with the radio, you might want to order part number 3205514W01 to cover the antenna connector on the radio.
If you are trying to program a MTX-838, from what we've heard, you need to use the MTSX software. The RVN4097F ver R02.10.01 RSS package specifically shows it programs the following radios: MT/MTS2000 MTX838/8000/9000. Now, the update for this software is RVN4097M R06.00.00 05 Sept 97, which should mean that it should program the radio as well. The cable you need is the standard MTSX programming cable
Do you want to build your own programming cable? If you don't want to use an old speaker mic cable, see the individual part numbers of the parts for the Service Cable, below.
You may want to look at the schematic for the RKN4035D Service Cable
. This is the actual Motorola cable used for programming and servicing these radios.
The individual part numbers for the components of this cable are listed below.
Cable, 13 Conductor
Gasket, "o" Ring