Ham radio operators do need to worry about radio exposure safety for heating. But we are using much higher powers, 100W is normal HF radio, and 1500W is the lim

Ham radio operators do need to worry about radio exposure safety for heating. But we are using much higher powers, 100W is normal HF radio, and 1500W is the limit. 5W handheld next to head is safe. Also, the 25mW is nothing.