Radiomaster-Gx12 | ITOHI — Open-Source Hardware, Embedded Systems & DIY Builds

Part 7: Two Antennas, Two Bands, and the Quad I Lost to Polarisation
Aug 16, 2026 · 7 min read · fpv elrs antenna-diversity polarisation radiomaster-gx12 gemini crsf telemetry ·
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ELRS control-link antennas are linearly polarised, not circular like video. Why one horizontal and one vertical on a true diversity receiver beats a single antenna, and why my telemetry already measures it.

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Part 3: Three Buttons, Three Colours, and the AND Gate That Ties Them Together
Aug 16, 2026 · 6 min read · fpv edgetx radiomaster-gx12 logical-switches customisable-function-switches crsf telemetry ·
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How EdgeTX customisable function switches, an RGB colour per subsystem, and one AND slot per logical switch turn eleven threshold detectors into three things you can switch on and off.

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Giving My Quad a Cockpit Voice, Part 1: Why a Drone Should Talk to You
Aug 16, 2026 · 5 min read · fpv edgetx radiomaster-gx12 elrs crsf telemetry betaflight report-cell-voltage lihv ·
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A low-battery number in the corner of the OSD is an interface failure, not a pilot failure. Why I made my RadioMaster GX12 speak, and the one flight-controller setting the whole thing depends on.

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