...turns your Motorola "MC micro" into a fully-fledged amateur radio transceiver.
Mod Matrix
The matrix shows which modifications is required for a which feature on a certain model.
| EVA5 | EVA9 | EZA9 | |
|---|---|---|---|
| Direct frequency input | 1 | 1 | 3 |
| Fixed channels (programmable) | - | 0 | 0 |
| 1750 Hz | 1 | 0 | 0 |
| CTCSS | 1, 2 | 0 | 0 |
| DTMF | 1 | 1 | 3 |
| Squelch | 1 | 0 | 0 |
| FSK channel bw up to 12,5 kHz (Pocsag, D-Star) | 1, 4 | 0, 4, optional: 1 | 0, 4, optional: 3 |
| FSK channel bw up to 25 kHz (9k6 PR) | 1, 4, 5 | 0, 4, optional: 1 | 0, 4, optional: 3 |
0 : No modification required
1 : MC70 Firmware
2 : Hardware modification CTCSS
3 : CPU replacement board MCmega
4 : FSK Add-On Board
5 : Replacement of IF-filters
Examples
- If you wish to do only FM voice transmission using an EVA5 type radio without CTCSS, modification 1 is sufficient.
- If one would like to use an EZA9 type radio for 9k6 packet radio (FSK bandwidth up to 25 kHz) and fixed channels are sufficient, modifications 0 and 4 are necessary. If this should be augmented by direct frequency input (via the keyboard), modification 3 is also required.