Now, we need to link the virtual COM port in DOSBox to the real COM port we just configured in Windows.
Open the dosbox.conf file (usually in C:\Users\YourName\AppData\Local\DOSBox ). Locate the [serial] section.
Hams, two-way radio hobbyists, and commercial users maintaining legacy GM300s. Not for: Casual users wanting a modern click-and-program interface. motorola gm300 programming software windows 10 full
The software is no longer available from Motorola, but it can be sourced from a few places online:
You need a high-quality USB-to-RJ45/RIB-less cable that utilizes an FTDI or Prolific chipset. Poor quality cables will fail to read or write the radio. Now, we need to link the virtual COM
If the port number is higher than COM4, right-click the device, go to Properties > Port Settings > Advanced , and change the COM Port Number to COM1 or COM2 for easier mapping. Step 4: Configure DOSBox Serial Mapping
Do not attempt to run the RSS in a standard Windows 10 Command Prompt. It will not launch. Do not use "Compatibility Mode"—this also fails for DOS applications. Poor quality cables will fail to read or write the radio
: The original Motorola GM300 RSS relies on the computer’s CPU clock for data synchronization during read/write cycles. Modern multi-core gigahertz processors operate too quickly, causing critical communication timeouts or "Op Code" errors.
The most stable way to run the original Motorola GM300 DOS RSS on Windows 10 is by using a dedicated x86 emulator like . Step 1: Download the Software
Now, we need to link the virtual COM port in DOSBox to the real COM port we just configured in Windows.
Open the dosbox.conf file (usually in C:\Users\YourName\AppData\Local\DOSBox ). Locate the [serial] section.
Hams, two-way radio hobbyists, and commercial users maintaining legacy GM300s. Not for: Casual users wanting a modern click-and-program interface.
The software is no longer available from Motorola, but it can be sourced from a few places online:
You need a high-quality USB-to-RJ45/RIB-less cable that utilizes an FTDI or Prolific chipset. Poor quality cables will fail to read or write the radio.
If the port number is higher than COM4, right-click the device, go to Properties > Port Settings > Advanced , and change the COM Port Number to COM1 or COM2 for easier mapping. Step 4: Configure DOSBox Serial Mapping
Do not attempt to run the RSS in a standard Windows 10 Command Prompt. It will not launch. Do not use "Compatibility Mode"—this also fails for DOS applications.
: The original Motorola GM300 RSS relies on the computer’s CPU clock for data synchronization during read/write cycles. Modern multi-core gigahertz processors operate too quickly, causing critical communication timeouts or "Op Code" errors.
The most stable way to run the original Motorola GM300 DOS RSS on Windows 10 is by using a dedicated x86 emulator like . Step 1: Download the Software