DATALINK contingency and Double Links/Radios at same time

Dear Colleagues,

I would like to take some questions. I am a beginner in the APM universe.

I am intending to implement a delivery system through drones and one of the problems I am encountering is the issue of communication.

I have some doubts and made a drawing to better describe my problem.

Doubts:

  1. Does Pixhawk support two telemetry devices working at the same time? If so how would it work?

  2. Is there a contingency mechanism when one of the communication links does not work? Does it point to the nearest telemetry? If so where do I find such information?

  3. Can it do data integrity control between two telemetry at the same time as checksum?

I appreciate if anyone can help me

Best Regards

Fabio