If you aren't using an antique PC, your best bet is DOSBox , though many enthusiasts swear by Rufus to create a bootable DOS USB drive.
The SP50 requires a true DOS environment (not just a Command Prompt in Windows 10/11) for reliable programming. motorola radius sp50 programming software.zip
: Requires a pure MS-DOS environment . It generally will not work correctly in a Windows "Command Prompt" or DOSBox due to timing sensitivities. Hardware Requirements : If you aren't using an antique PC, your
Motorola’s "Resource Center" for legacy products offers programming guides and hardware pinouts, though no software downloads. your best bet is DOSBox