I think we would probably need something like relays for that? That way the signals can just bounce from one spot to the next so they can reach longer distances, right?

[ after they got their ship fixed, it took them more than an entire day just to drive (seriously what's the word for using a sub thing?? pilot??) back to base, and that was without stopping to check out other islands and biomes along the way. so if URSULA's sensors couldn't reach that far... ]