| Feature | Supported? | Notes | |--------|------------|-------| | Frequency programming | ✅ Yes | VHF: 136–174 MHz, UHF: 403–470 MHz (split-dependent) | | TX power adjustment | ✅ Yes | High/Low (25W or 40W/45W depending on model) | | Squelch type | ✅ Yes | Carrier, PL (CTCSS), DPL (DCS) | | Scan lists | ✅ Yes | Up to 10 channels per list, priority scan | | Time-out timer (TOT) | ✅ Yes | 0–120 seconds | | Signalling | ✅ Yes | MDC1200 (limited: PTT ID, emergency, radio check) | | Channel spacing | ✅ Yes | 12.5 kHz or 25/20 kHz (narrow/wide) | | Busy channel lockout | ✅ Yes | |
Here’s the reality: the "top" version isn't necessarily the newest. It’s the right one. Versions like or R02.03.00 are considered the "golden masters" for this platform. Why? Because later versions (often bundled for the similar but distinct GM950 or GM950 Pro) introduce incompatible code plugs. Use the wrong version, and you’ll get the dreaded “Codeplug too new” or “Communication Failed” error. The "top" software is the one that balances features (like enabling 64 channels, signalling options like MDC-1200 or Quik-Call II, and power level adjustments) without corrupting the radio’s EEPROM. motorola gm950 plus programming software top
. Running it on modern systems like Windows 10 typically requires using Programming Setup Requirements Versions like or R02
: Modern "RIB-less" USB cables (like the RPC-MM-U) are available from retailers such as AliExpress Use the wrong version, and you’ll get the
Once your channels are set, go to . The software will compile the data and send it to the radio. Do not unplug the cable or turn off the radio during this process. Interrupting a write can brick the radio, leaving it in a state only a "lab reflash" can fix.
: If the software doesn't recognize the radio, double-check that you aren't using the standard GM950 software on a "Plus" model, as the firmware structures differ.