{
  "added_at": "2026-11-08",
  "additional_evidence_urls": [
    "https://github.com/byf3332/Baofeng-ALERVITES-AT2-Android/blob/d91f50f6ef6a5dd0b200d0e53d9fe809b379a454/tools/verification/README.md"
  ],
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "AT2 HT implements the Baofeng ALERVITES AT2 radio's BLE control and off-network messaging in an Android app. It supports channel programming, messages and PTT, and replaces voice encoding with OpenCORE-AMR MR475 and image processing with a Go implementation compared against the original library.",
  "description_zh": "AT2 HT 在 Android 应用中实现 Baofeng ALERVITES AT2 对讲机的 BLE 控制与离网消息协议，支持信道设置、消息和 PTT。语音编码使用 OpenCORE-AMR MR475，图像处理采用与原库输出比对的 Go 实现。",
  "entry_url": "https://awesomerea.org/resources/at2-ht-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/at2-ht-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/byf3332/Baofeng-ALERVITES-AT2-Android/blob/d91f50f6ef6a5dd0b200d0e53d9fe809b379a454/README.md",
  "group": "cases",
  "id": "at2-ht-case",
  "json_url": "https://awesomerea.org/resources/at2-ht-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/at2-ht-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/at2-ht-case/index.md",
  "name": "AT2 HT: reconstructing Baofeng AT2 BLE control and messaging",
  "name_zh": "AT2 HT：还原 Baofeng AT2 的 BLE 控制与消息功能",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "scope",
    "license"
  ],
  "requirements": [
    "A Baofeng ALERVITES AT2 and an Android 8.1 or newer device with BLE, audio and location capability are required.",
    "USB-C programming, firmware updates and full RF air-interface decoding are outside the project scope.",
    "Apache-2.0 license."
  ],
  "requirements_zh": [
    "需要 Baofeng ALERVITES AT2，以及具备 BLE、音频和定位功能的 Android 8.1 或更新版本设备。",
    "USB-C 编程、固件更新和完整的射频空口解码不在项目范围内。",
    "Apache-2.0 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/byf3332/Baofeng-ALERVITES-AT2-Android",
  "verification": "source-reviewed",
  "verified_at": "2026-11-08"
}