EMC

[Panrock]

Is there a helicopter ban near Crystal Palace? When I totted up the transmitter powers at CP, assumed they are erp's not eirp's and a mean frequency of 550 MHz, and fed this into the Ofcom calculator, I got a minimum safe distance of 434 metres. That's a 'forbidden zone' around the tower approaching a kilometre across. And what about the birds? They are around the right size to resonate at UHF.

Steve