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2026-07-19 16:22:01 +00:00
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docs/en/telemetry/crsf_telemetry.md
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@@ -210,7 +210,7 @@ The supported telemetry messages and their source are listed below (this table i
| Yaw | FC Yaw angle | FC | | Yaw | FC Yaw angle | FC |
| FM | Flight mode | FC | | FM | Flight mode | FC |
| Alt | Altitude above the local origin (takeoff point) | FC | | Alt | Altitude above the local origin (takeoff point) | FC |
| VSpd | Vertical speed | FC | | VSpd | Vertical speed | FC |
::: info ::: info
`GAlt` (in the GPS sensor) is GPS altitude above mean sea level, while `Alt`/`VSpd` are PX4's fused local altitude and climb rate relative to the estimator origin (roughly the takeoff point). PX4 sends these in the CRSF barometric-altitude frame, so despite the frame name the value is not a raw barometer reading. `VSpd` uses the linear vertical-speed form, which requires a recent EdgeTX (2.9+); the altitude displays on EdgeTX 2.7.1 and later. `GAlt` (in the GPS sensor) is GPS altitude above mean sea level, while `Alt`/`VSpd` are PX4's fused local altitude and climb rate relative to the estimator origin (roughly the takeoff point). PX4 sends these in the CRSF barometric-altitude frame, so despite the frame name the value is not a raw barometer reading. `VSpd` uses the linear vertical-speed form, which requires a recent EdgeTX (2.9+); the altitude displays on EdgeTX 2.7.1 and later.