Always perform a "Read" operation before changing anything. Save this original codeplug file as a backup!
Connect the specialized programming cable from the RIB box to the front microphone port of the GM950. Power on the RIB box, then power on the GM950. 2. Reading the Radio Data (Codeplug)
A "new" cheap USB cable from eBay ($9) will likely fail. Spend $35 on a known brand like BlueMax49ers or Valley Enterprises. motorola gm950 programming software new
The Motorola GM950 was developed before the widespread adoption of modern Windows software. The tool used to program it is called . It's important to clarify that the GM950 never had a modern "Customer Programming Software (CPS)" in the way later Motorola radios do. The software you're looking for is legacy RSS, designed specifically for this platform.
If you have recently acquired a second-hand GM950 or are reviving an old fleet radio, you have likely discovered that modern Windows 10 or Windows 11 machines refuse to run the legacy programming tools. Furthermore, Motorola’s current business software suite (CPS) no longer supports this analog workhorse. Always perform a "Read" operation before changing anything
The GM950 series is available in three distinct models designed to meet various business needs:
Legacy programming software strictly communicates via hardware serial ports. If your modern computer lacks a DB9 serial port, you must use a high-quality USB-to-Serial adapter. Adapters built with the FTDI chipset are highly recommended, as Prolific chipsets often fail to communicate with legacy RSS. Setting Up Your Programming Environment Power on the RIB box, then power on the GM950
It isn’t—but it’s reliable. Many shops still keep this "old new stock" hardware because it never fails. You can find these setups on eBay as "GM950 programming laptop" bundles.
Additionally, only program frequencies you are legally licensed to transmit on. Transmitting on police, fire, or emergency services frequencies is illegal and can result in severe penalties.