UV-PRO Firmware Changelog

V0.9.2 — January 29, 2026

New

• KISS Mode Enhancements: Configure TX and RX frequencies independently, and set TX power for the KISS profile.
• DTMF in KISS Mode: While PTT is pressed, send DTMF tones using the numeric keypad.
• Smart Beacon Control: Added Max Interval under General Settings → Digital Mode to set the maximum smart beacon transmit interval.
• Radio Settings Update: Added a Reverse Frequency switch in Radio Settings.
• Programmable Buttons: New assignable actions: Squelch Level +, Squelch Level −, Display Squelch Level, VFO Toggle, Reverse Frequency Toggle.

Improvements

• Satellite Mode Display Batching: Screen updates are now batched to prevent flickering.
• DTMF Display: When transmitting DTMF, the radio now displays the characters being sent.

Fixes

• Satellite Mode Audio Link: Fixed an issue where voice communication between the radio and phone could be blocked after a PTT transmission.
• Boot “Last Received Channel” Indicator: Prevents the “last received channel” indicator from showing during boot by initializing it as invalid at startup.

V0.9.0 — December 17, 2025

Fixes

• Fixed Mic-e Parsing Errors Caused by Overflows

V0.8.15 — December 03, 2025

New

• GPWPL Location Reporting: Adds support for reporting received position reports using GPWPL. (Requires enabling “GPWPL Upload” under: General Settings → Data Mode → GPWPL Upload.Signaling format selector in Signaling Settings (choose BSS or APRS)).

Improvements

• Satellite Mode Enhancements: Now displays satellite name, azimuth, elevation, orbital altitude, range to satellite, and pass countdown timer on-screen.
• Keypad Lock Behavior: The radio now restores the previous keypad lock state after powering back on. (When the keypad is locked, volume adjustment via the potentiometer is disabled to prevent accidental changes.)
• Battery Indicator Optimization: Battery percentage display has been smoothed to reduce rapid or drastic fluctuations over short periods.
• Mute Status Indicators: The mute icon now distinguishes between different mute conditions (e.g., manual mute, squelch, other system mutes) for clearer status feedback.

Fixes

• KISS / TNC  Data: Supports sending KISS data packets when the squelch (SQ) is open, improving compatibility with external packet/APRS software.

V0.8.12 — October 09, 2025

New

• Signaling format selector in Signaling Settings (choose BSS or APRS).
• Custom Location override for cases without GPS or when a fixed position is preferred.

Improvements

• BK4819 RF driver hardening: added host-write error detection and automatic recovery on PLL loss-of-lock.

Fixes

• APRS Mic-E: default icon set now applies when no icon is configured in the app, preventing malformed/incorrect packets.
• Audio Relay: resolved occasional silent transmit due to audio re-sampling.

V0.8.9-1 — August 07, 2025

New

• Support for Satellite Mode
• Added Alarm Volume option in Sound Settings (Adjust NOAA Alarm Volume)

Fixes

• Fixed the issue where announcing the current channel would cause exiting VFO mode

Other

• Frequency mode transmit power supports local control

V0.8.8 — June 23, 2025

New

• Smart Beaconing™ (adaptive APRS beacon intervals)
• Mic-E APRS frames support
• On-radio GPS sharing (radio can contribute position to the BTECH app)
• Quicker volume overlay (auto-hide after ~1s)

Improvements

• Reliable network audio; corrected rare transmit/receive channel mismatch

V0.8.4 — April 28, 2025

New

• Added support for Busy Channel Lockout (BCL) to prevent message transmission on busy channels.
• Added “VFO Step” configuration option in Radio Settings.

Improvements

• Channel editor now supports BCL and modulation mode.
• Optimized display colors and font for readability.
• Reduced extra wait time for 1050 Hz tone check (BK4819) from 250 ms to 125 ms.
• Consistent SQL value for NOAA channels to minimize unintended squelch openings.
• Channel switching interface can jump directly to VFO channels.
• DTMF input interface now shows text.
• “Frequency Rapid Scan” supports fine frequency adjust; results save to VFO.

Fixes

• Fixed Audio Relay abnormal operation.
• Fixed premature exit/timeout behavior in NOAA alert mode around 1050 Hz tone detection.
• Fixed incorrect scan results when scanning frequencies alongside channels using frequency-offset mode.
• Resolved additional audio relay issues.

V0.8.1 — February 26, 2025

Improvements

• Bluetooth headset now correctly disables PTT release prompt tone when system tones are off.
• Channel groups: switch directly from main screen via Right Soft Key.
• Improved RX performance.

New

• APRS destination address updated to “APBTUV.”

V0.8.0 — January 22, 2025

Large firmware update; a Factory Reset is recommended after updating.

Bluetooth & VOX

• Improved stability with third-party Bluetooth accessories.
• Added VOX support for Bluetooth headsets.
• Optional routing to use the radio speaker/mic while a Bluetooth headset remains paired (selectable in Sound Settings).

On-Radio Menu

• Audio Relay settings moved into radio menu.
• VOX settings added.

KISS & APRS

• Stability improvements and ACK handling fixes for onboard APRS.
• SMS and APRS ACK reliability improvements.
• KISS protocol stability and message handling improved.
• ACKs now sent via the receiving channel.
• Added channel save function to store current channel during scanning.

BS-22 Accessory

• Eliminated squelched-state hiss through the BS-22 microphone.

V0.7.11 — December 11, 2024

New

• KISS Bluetooth Mode for broader device/app compatibility; simple, standards-based interface.
• New KISS UI menu on radio.

Improvements

• Enhanced Bluetooth stability, buffering, and error correction.
• Improved data throughput.

Fixes

• Resolved intermittent app-pairing issues.

V0.7.8 — September 25, 2024

Improvements

• Better dynamic sensitivity at lowest squelch settings for stronger receive—especially helpful for APRS.
• New programmable button functions: Mute Switch, Freq Sync Rapid Scan.
• If no signaling ID is set, the radio now displays the Call Sign.
• Message list shows the call sign when the sender doesn’t provide an ID.
• Audio Relay Switch added in Radio Settings.