Telemetry 1 vs Telemetry II Priority

Hardware Pixhawk family
1

Hello,

I’m need some help understanding the logic between running two telemetry ports on a Pixhawk 2.1. On telemetry one, I’m running a 4G modem on on MAVLINK 2. On telemetry two, I’d like to run a RFD900X on MAVLINK I. How does the Pixhawk determine what telemetry port to use, if they both have excellent communications? If I lose 4G connection, should it automatically revert back to the RFD900X? Vice versa? How would I set it to swap to the other if one port looses connection? I’d appreciate any help.

@rmackay9 #development-team #arduplane #arducopter

2

It uses both. There’s no check to determine which one to use.

In terms of following commands, it will obey the last command received on either link.

1 Like
3

Hello @stephendade,

I want to have the 4G as my primary, and the RFD900X as my backup. Is there a way to do it that way?

4

Like the post above says, you can use both at the same time. If one fails, stop using it. And continue to use only the one that is working.