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[Feature Request] Add regional frequency preset for South Korea (KR920-923)

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c

调研方向

Start by locating the existing regional frequency presets and how their radio parameters are represented. Compare those presets with the proposed KR920 range, center frequency, bandwidth, spreading factor, coding rate, and transmit power. The issue gives no file or test names; done means adding a South Korea preset consistent with the project’s preset conventions and checking its parameter values.

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描述

  1. Proposed Region Name & Identifier
    Region / Country Name: South Korea (KR or KR920)
    Intent: Provide out-of-the-box compliance, efficient airtime usage, and ease of use for local South Korean mesh communities without requiring manual frequency calibration.

  2. Core Radio Parameters (Optimized Technical Array)
    Frequency Range: 917.0 MHz – 923.5 MHz
    Center Frequency / Channel 0: 921.9 MHz (aligned with standard local sub-band deployment)
    Bandwidth (BW): 125 kHz
    Spreading Factor (SF): SF7 or SF8 (optimized for lower packet airtime, faster network responsiveness, and strict adherence to local duty cycle/channel occupancy limits)
    Coding Rate (CR): 4/5
    Max Transmit Power: 10 dBm to 14 dBm (approx. 10mW–25mW EIRP limit compliance)

  3. Legal Justification & Regulatory Citation
    Governing Body: MSIT (Ministry of Science and ICT / 과학기술정보통신부) of South Korea.
    Legal Framework: South Korea Radio Waves Act (전파법).
    Specific Standard: Technical Standards for Radio Equipment for Radio Stations That Can Be Established Without Notice (신고하지 아니하고 개설할 수 있는 무선국용 무선설비의 기술기준), specifically under RFID/USN and Data Transmission Low-Power Devices.

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环境准备

这个项目没有提供开发容器、Dockerfile 或贡献指南,环境需要你自己搭建:先看它的 README,通用步骤见我们的新手贡献指南。

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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