RT-900 BT Custom Firmware

RF Splatter Firmware v1.0

Stock firmware, refined.

Based on Radtel V1.20P (2025-09-02)

Flash Now

What'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.