two transmitters and one receiver

I need to get the same data from two different sources.
I will collect them in a single station, but there is a problem with 2 senders transmitting to a receiver and separating this incoming data. What are your thoughts on the topic?

two transmitters and one receiver

If you are writing the application on the receiving side, I would use API mode. That way you can see who the data is coming from. Just use AT mode on the remote side.