RF exposure on the ground from an aerial are likely non-harmful. Right next to the antenna can still give burns. There's also issues of arcing, lightning, and o

RF exposure on the ground from an aerial are likely non-harmful. Right next to the antenna can still give burns. There's also issues of arcing, lightning, and other electrical issues when dealing with high power radios. Electricity is unforgiving and a lot of the safety rules in licenses above Technician try to instill that fact.