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Link fixes galore (#25151)
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@@ -9,7 +9,7 @@ Keeping flight logs is a legal requirement in some jurisdictions.
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## Downloading Logs from the Flight Controller
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Logs can be downloaded using [QGroundControl](http://qgroundcontrol.com/): **[Analyze View > Log Download](https://docs.qgroundcontrol.com/master/en/qgc-user-guide/analyze_view/log_download.html)**.
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Logs can be downloaded using [QGroundControl](https://qgroundcontrol.com/): **[Analyze View > Log Download](https://docs.qgroundcontrol.com/master/en/qgc-user-guide/analyze_view/log_download.html)**.
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@@ -74,9 +74,9 @@ A subset of the products that are known to work with PX4 are listed below.
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### QGroundControl {#qgc}
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The Dronecode GCS software is called [QGroundControl](http://qgroundcontrol.com/) ("QGC").
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The Dronecode GCS software is called [QGroundControl](https://qgroundcontrol.com/) ("QGC").
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It runs on Windows, Android, MacOS or Linux hardware, and supports a wide range of screen form factors.
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You can download it (for free) from [here](http://qgroundcontrol.com/downloads/).
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You can download it (for free) from [here](https://qgroundcontrol.com/downloads/).
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@@ -97,11 +97,11 @@ _PX4_ and _Pixhawk_ have been validated with:
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- PPM sum receivers
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- S.BUS and S.BUS2 receivers from:
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- Futaba
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- FrSky S.BUS and PPM models
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- TBS Crossfire with SBUS as output protocol
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- Herelink
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- TBS Crossfire with ([CRSF protocol](../telemetry/crsf_telemetry.md))
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- Express LRS with ([CRSF protocol](../telemetry/crsf_telemetry.md))
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@@ -111,13 +111,11 @@ _PX4_ and _Pixhawk_ have been validated with:
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Receivers from other vendors that use a supported protocol are likely to work but have not been tested.
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::: info
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Historically there were differences and incompatibilities between receiver models, largely due to a lack of detailed specification of protocols.
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The receivers we have tested all now appear to be compatible, but it is possible that others may not be.
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:::
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## Connecting Receivers
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As general guidance, receivers connect to the flight controller using the port appropriate to their supported protocol:
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@@ -127,7 +125,7 @@ As general guidance, receivers connect to the flight controller using the port a
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- Graupner HoTT receivers: SUMD output must connect to a **SPKT/DSM** input (as above).
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- PPM-Sum and S.BUS receivers must connect directly to the **RC** ground, power and signal pins.
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This is typically labeled: `RC IN`, `RCIN` or `RC`, but has in some FCs has been labeled `PPM RC` or `PPM`.
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- PPM receivers that have an individual wire for each channel must connect to the RCIN channel _via_ a PPM encoder [like this one](http://www.getfpv.com/radios/radio-accessories/holybro-ppm-encoder-module.html) (PPM-Sum receivers use a single signal wire for all channels).
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- PPM receivers that have an individual wire for each channel must connect to the RCIN channel _via_ a PPM encoder [like this one](https://www.getfpv.com/radios/radio-accessories/holybro-ppm-encoder-module.html) (PPM-Sum receivers use a single signal wire for all channels).
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- TBS Crossfire/Express LRS Receivers using [CRSF Telemetry](../telemetry/crsf_telemetry.md) connect via a spare UART.
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Flight controllers usually include appropriate cables for connecting common receiver types.
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