Spectrum Menu Beta V2.0.1 Apr 2026

The is a significant update for enthusiasts of the Quansheng UV-K5 (and K6/58) series handheld radios. This custom firmware extension, often associated with the F4HWN / Armel custom firmware forks, focuses on expanding the device's utility through a highly customizable user interface and advanced hardware control. Core Updates in v2.0.1

: New granular control for user power settings ranging from low-power up to high-output 5W .

: Users can now toggle between Classic (hold to talk) and OnePush (toggle) PTT modes. Enhanced Alerts & UI : Spectrum Menu Beta v2.0.1

The "Spectrum" moniker refers to the firmware's ability to provide a visual frequency spectrum analyzer on the radio's small screen, and version 2.0.1 introduces several key menu entries and performance refinements:

For a budget radio like the UV-K5, this firmware bridge brings "big-radio" features like , S-meter styling , and RX audio profiles to a portable format. Installation & Availability The is a significant update for enthusiasts of

: New notification settings for Time-Out Timer (TOT) and End-Of-Transmission (EOT) alerts, including sound, visual, or both.

You can find the latest source code and compiled binaries on via the armel/uv-k1-k5v3-firmware-custom repository . : Users can now toggle between Classic (hold

: The BatVol menu has been evolved into SysInf , which now displays the current firmware version alongside battery health.