Workmen (n = 6) accidentally exposed to 100 MHz RF while working on transmission masts were analyzed. Symptoms included headache, parasthesiae, diarrhoea, malaise and lassitude. Symptoms were long lasting. In an earlier study, 3 workers were accidentally exposed to 785 MHz while working on a television mast. The authors report that the workers experienced immediate sensations of heating, pain, headache, numbness, and parasthesiae, malaise, diarrhoea, and skin erythema.