So far as I know, that's correct. There's even a handy theorem that states this pretty unequivocally!

> it is not possible for one observer, by making a measurement of a subsystem of the total state, to communicate information to another observer. The theorem is important because, in quantum mechanics, quantum entanglement is an effect by which certain widely separated events can be correlated in ways that suggest the possibility of instantaneous communication. The no-communication theorem gives conditions under which such transfer of information between two observers is impossible.

https://en.wikipedia.org/wiki/No-communication_theorem

Modern radio signals are pretty close to noise anyway. You increase capacity by going to the very limit of what your receiver can distinguish. The only thing you can measure from a distance is that certain frequency ranges have more power than background.

you can't "communicate", but it would be useful for qubits in one quantum computer to be sent to another quantum computer without physically moving the qubit. that was what I meant by wide-area quantum information networks

Oh totally agreed. My response wasn't to your comment, but to a comment implying that aliens are communicating "across" us but never through us via means of quantum teleportation and that's why can't detect them.

I agree with you, this is impressive and probably will be very helpful some day.

Thank you! This is definitely one of those things where my understand was inaccurate and this thread has been immensely helpful to improve that.