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Pole positions: Base station spotters scrap for prize
And the Reg goodie bag goes to...
16)
This one confused a lot of people, partly because they couldn't tell which thing was pretending to be a radio mast. But the one on the right is a reflective lamp post, while the thing on the left is art, or shopping-mall branding, or something along those lines.
17)
Fencing around the box at the bottom should be a clear indicator of a mast.
18)
This one is also a mast, but quite a small one.
19)
Suspiciously lumpen base with fence - that's a mast.
20)
Symmetrical stench pipes, taking the whiff of the drains above the heads of the pedestrians. Clever, but nothing to do with a cellular network.