In this video I cover the main points of the 3DR/MAVLink telemetry radio system and install and configure it on an APM Mini 3.1.

In this video we cover:
How to connect the airside radio (3:47)
How to check that the connection between radios is working (8:17)
How to check that the radios can speak to the APM (9:04)
Show a live connection in Mission planner (10:01)
How to update the firmware on each radio device (14:14)

Visit the official pages by clicking on http://ardupilot.org/copter/docs/comm....

Please see my channel for many more videos on the excellent APM platform.

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Happy flying!