Motorola does not offer a public, free download for the GM3688 CPS.
Motorola Solutions hosts their legacy software on MyView (formerly Business Online). You need a Motorola account and a valid entitlement (a license key). The bad news: For a GM3688, Motorola usually considers this "End of Life" (EOL). You likely can't buy a new license. The good news: If you have an old CD or a dealer login, you can download the official installer straight from the source. motorola gm3688 programming software download
The CPS will warn you if you enter an out-of-band frequency, but it will not stop you. That is your responsibility. Motorola does not offer a public, free download
The Motorola GM3688 is a rugged, vehicle-mounted mobile radio widely used in the taxi, construction, and manufacturing industries for its reliable analog communication. Because this product has been discontinued by Motorola Solutions , finding the correct programming software and hardware is essential for maintaining existing fleets. Essential Programming Software The bad news: For a GM3688, Motorola usually