i know the idea of Servers has been suggested alot but this is different, so first there should be a satellite dish that can send a rednet signal to a server in the sky or some other receiver i said server because there should be inside of the sky station a server like computer that receives signals from antenas and bounces it out another transmitter dish.

Now for some more detail:

Local Radio towers:
they have a rednet radio tower that is capable of picking up rednet signals over a 100 block radius then a server connected to the radio tower that will pass the data coming from the radio tower to a satellite that will project it into a sky relay (described in the next subtopic), which bounces the incoming signal to a different ground station to be transmitted across a 100 block radius.

sky relays
These stations are pretty much satellites they contain a server that receives and transmits signals coming and going to satellite dishes

i'm aiming for it to work like how the phone network works
i know its a bit farfetched but many people i'm sure will agree this is a pretty fricken cool idea and would help out greatly.