I appreciate that there will be no short, solid answer to this, as it will depend on whether the transmitter(s) are on top of a telephone exchange, or on top of a mountain. Yes, I have used an amount of exaggeration to better explain my question, there.
What I'm asking is whether or not most mobile masts, say in a field but not in a ridiculously remote location, are almost always fed by underground fibre, or whether they ever relay data to each other, a bit like TV repeater transmitters have for decades. If so, is it only in extreme circumstances?
There was recently a mobile mast built close-ish to me (not one will will serve me very often, I just went to look at it out of interest), and from day one it had two small dishes on it below the mobile transmitting cells. They look to be pointing at too much of an upward angle to be receiving anything from another transmitter, but I did wonder what they were for. The 4G latency would be terrible if it was being relayed between masts, wouldn't it? You can see exactly where they mole-ploughed power to it, but I don't know anything about how they get the data link to it.
Here is a photo of the mast I'm talking about, if that helps. As I said, the dishes look to be pointing at a point far, far higher than any mobile mast. It's halfway up a small hill, in order to cover a village below, it's not underneath a mountain or anything.
Cheers for any useful or interesting info.
Edited by gazzyk1ns (Fri 03-Jun-16 22:19:37)