
VUURWERK v1.5.0 released: UV-K5 firmware with a voice-seeking spectrum
Just released v1.5.0 of VUURWERK, my custom firmware for the UV-K5. The main feature is a VOX mode in the spectrum analyzer that scores every frequency for voice instead of raw signal strength, so carriers and data bursts stay flat while actual conversations show up as bars.
Arrow keys hop between them, PTT locks onto the one you are listening to, and when you exit the spectrum that frequency is set on your VFO so you can answer. Also added F then EXIT, which resets the current VFO to clean simplex by clearing RX and TX tones, repeater offset, reverse, and scrambler in one press. Useful when the radio shows a green RX light but stays silent, which is usually a leftover RX tone. This release also fixes a bug where exiting the spectrum could switch you to the other VFO, plus some audio path issues on exit.
Scanning is faster than stock and the manual was rewritten with screen diagrams for everything. https://github.com/Tokeloshe/vuurwerk-firmware/releases/latest and the boot screen should say v1.5.0 after flashing.
Field reports welcome. 73, KC3TFZ