[This story, somewhat old now, was highlighted to me a while back but I somehow didn’t write about it. Thanks Andy for the initial highlight]
802.11a bring the huge advantage of speeds up to 54Mps but a severely reduced range of around 60 feet. Currently anybody wanting to use 802.11a equipment in the UK needs to have a licence from the Radio telecommunications Agency but sadly the RA appear to be sitting on their hands and not issuing any licences.