SFE software is a PC-based application used to configure the internal settings of SFE-branded or compatible handheld and mobile two-way radios. Instead of manually adjusting frequencies on the radio keypad (if even possible), the software allows you to:

This is where SFE software does the heavy lifting. The interface typically presents a grid with columns representing:

Because this is a software interface, it allows for "bulk editing"—for example, setting the same squelch tone for 50 frequencies simultaneously, which is impossible on the radio hardware itself.

Let’s walk through a typical session of using SFE radio programming software. Assume you have a Retevis RT40 DMR radio.