RT-900 BT Custom Firmware
RF Splatter Firmware v1.0
Stock firmware, refined.
Based on Radtel V1.20P (2025-09-02)
Flash NowWhat's New
usability
Cleaner Menu Labels
29 cryptic abbreviations replaced with clear English. ABR → BACKLIGHT, TDR → DUAL WATCH, W/N → BANDWIDTH, and more.
capability
Expanded RX Range
Receive from 108 to 520 MHz continuously. Closes the 174-350 MHz gap to cover public safety, military air, maritime, and more.
identity
RF Splatter Branding
Custom version string and splash screen. Your radio, your firmware.
visual
Custom Splash Screen
RF Splatter branded boot screen replaces the stock Radtel logo.
Fully reversible — re-flash stock V1.20P anytime to restore original firmware. No soldering, no SDK, no bricking risk.