Radtel 12 is an alternative programming software that has been confirmed to work with the RT15. One user reported:

Once the software launched, Elias connected the programming cable. A few clicks later, the screen filled with a grid of rows and columns. He typed in the site’s private frequencies, adjusted the VOX sensitivity, and hit "Write." A green progress bar crawled across the screen.

Complete Guide to Rt15-cps Software Download and Installation

You can securely obtain the necessary files directly from the Retevis Software Download Portal .

driver (depending on the cable chipset) before the CPS can communicate with the radio. Connection

The safest and most reliable place to secure the software is directly from the manufacturer.

Eliminate interference from other radio users on the same frequency.

: Program restrictive time thresholds to prevent accidental channel jamming caused by an active or stuck microphone push-to-talk button. Step-by-Step Installation & Setup Guide