mirror of
https://github.com/atsunatsu/Look4Sat.git
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When adjusting RX in passband mode (via +/- buttons or slider), the old code used TransponderMapper.mapDownlinkToUplink (pure passband mapping without Doppler compensation), producing ~10kHz error at LEO velocities. Fix: use DopplerFrequencyCalculator.computeUplinkFromDownlinkWithOffset for the full TX-from-RX round-trip, matching the RX→PASSBAND button onClick logic. Also fixed frame mismatch: position now uses txLow/txRange (Doppler-shifted frame) consistently.
37 lines
1.8 KiB
Markdown
37 lines
1.8 KiB
Markdown
# Look4Sat-BA7OPF
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[](https://github.com/atsunatsu/Look4Sat/releases)
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**BA7OPF 定制版** — 基于 [rt-bishop/Look4Sat](https://github.com/rt-bishop/Look4Sat) 的业余无线电卫星追踪器,增加了线性卫星频率计算器等功能。
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## 本仓库特色功能
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- **线性卫星转发器频率计算器** — 在雷达页的 Calculator 标签页中,支持 TX/RX 双向多普勒频率计算,以及下行频率偏移(offset)输入,方便操作带偏移的线性卫星
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- **CW 解码器** — 集成 Morse Expert 解码引擎,支持瀑布图、实时解码文本
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- **Passband 模式** — 支持通过位置滑块(Passband)自动计算 TX/RX 频率,避免切换时跳变
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- **中文界面优化** — 翻译修正、UI 布局调整
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## 上游仓库
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本仓库是 [rt-bishop/Look4Sat](https://github.com/rt-bishop/Look4Sat) 的分支,上游仓库的原始功能包括:
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- 基于 Celestrak / SatNOGS 数据的 9000+ 活跃卫星追踪
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- SGP4/SDP4 轨道预测,10 天过境预报
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- 极坐标雷达图、地面轨迹图
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- SSTV 图像解码
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- 无广告、无跟踪、完全离线
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## 许可证
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GNU General Public License v3.0。详见 [LICENSE](LICENSE)。
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## Star History
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<a href="https://star-history.dera.page/#atsunatsu/Look4Sat&type=timeline&legend=top-left">
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<picture>
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<source media="(prefers-color-scheme: dark)" srcset="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&theme=dark&legend=top-left" />
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<source media="(prefers-color-scheme: light)" srcset="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&legend=top-left" />
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<img alt="Star History Chart" src="https://star-history.dera.page/svg?repos=atsunatsu/Look4Sat&type=timeline&legend=top-left" />
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</picture>
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</a>
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