# egzumer/uv-k5-firmware-custom

A merge between https://github.com/OneOfEleven/uv-k5-firmware-custom and https://github.com/fagci/uv-k5-firmware-fagci-mod

Repository: https://github.com/egzumer/uv-k5-firmware-custom
Canonical: https://ross.abutalabs.com/products/uv-k5-firmware-custom
Language: C
License: Apache-2.0
License Family: permissive
Last push: 2024-08-20T11:11:24+00:00

## Health v2 (maintenance only)
Score: 18/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 76
- inputs: {"age_days": 1075, "days_push": 743, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1906, forks 686 (observed 2026-08-28T04:05:52.515586+00:00)

## What it is
An open-source custom firmware for the Quansheng UV-K5/K6/5R handheld radio, merging OneOfEleven's custom firmware with fagci's spectrum analyzer mod plus additional enhancements. It adds features like SSB demodulation, AM reception fix, fast scanning, and configurable buttons.

## Use cases
- unlock SSB reception on a Quansheng UV-K5 handheld radio
- improve AM reception quality on the UV-K5
- add a spectrum analyzer to a UV-K5 radio
- customize button functions and menus on a UV-K5
- get better battery percentage and voltage display on the radio
- flash custom firmware onto a Quansheng UV-K5/K6/5R

## When to choose
- you own a Quansheng UV-K5/K6/5R and want enhanced features beyond stock firmware
- you want SSB demodulation or a spectrum analyzer on a cheap handheld radio
- you want an actively maintained community firmware with a detailed manual and wiki

## When to avoid
- you own a different radio model - this firmware is specific to the Quansheng UV-K5 family
- you cannot risk bricking your radio, as flashing carries real risk
- you need professional-grade transceiver performance, which the hardware itself limits

## Facets
- artifact type: application
- maturity: active
- function: embedded
- domain: embedded-systems, hardware
- platform: embedded, iot, c
- tags: ham-radio, quansheng-uv-k5, firmware, spectrum-analyzer, ssb-demodulation, am-fix, open-source-firmware, radio

## Member repositories
- egzumer/uv-k5-firmware-custom (main) score 18

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:52.515586+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:11:40.299210+00:00, confidence not recorded.
  - readme: https://github.com/egzumer/uv-k5-firmware-custom (fetched 2026-08-28T04:05:52.515586+00:00, sha 8c84e8f0d4a0)
- Data as of 2026-08-30T08:39:29.467469+00:00.