sony_apm_fan said:
Just a question...the aerials aren't transmitting when they are worked on....are they??
It depends. If it's a TV or AM/FM transmitter they will turn them off. Same for the old ATT microwave towers. Cell towers don't pump enough frequencies to bake a potato. It's an old wives tale. And on the others mentioned, heat is the greatest danger because the body becomes a cnductor of sorts on the other tower types. Low power situations around 200 watts are OK but tower height is a factor as the greater the height the more current is distributed.
I've been there and even with equipment for protection its not fun. There are times when you have to climb the tower "hot".