Motorola Gm950 Programming Software Page

The GM950 communicates via a 2.5mm to DB-9 (RS-232) serial programming cable. It does not use USB natively. Attempting to use a cheap "USB programming cable" from Amazon often fails due to voltage mismatches and timing issues.

  • Set Squelch Type to "CSQ" (Carrier Squelch) unless you are using a PL tone (CTCSS) or DPL tone. For PL, select "Private Line" and enter the tone in Hz (e.g., 100.0).
  • Set TX Power Level (Low = 1-5W, High = 25W - depending on model).
  • Press F8 to save the personality.

    • Once you have read the radio, the screen will display the current codeplug data. Here are the essential keys: Motorola Gm950 Programming Software

    Using incorrect or corrupted programming software can "brick" your GM950. If the software mismatches the firmware version inside the radio, you may corrupt the codeplug (the radio's memory), rendering the unit unusable without a complex hardware re-flash. The GM950 communicates via a 2

    The Motorola GM950 is a professional FM radio transceiver used in public safety, utilities, transportation and other mission‑critical fleets. Programming software lets you configure channels, power levels, signaling (MDC1200, DTMF), CTCSS/DCS tones, scan lists, zones, PL/DTCS, emergency settings, and other operational parameters. This document summarizes software options, required hardware, typical workflows, best practices, and troubleshooting steps. Set Squelch Type to "CSQ" (Carrier Squelch) unless

    The software allows you to: