martinidoc
Pagers are relatively passive as they don't transmit or register with a network. Or so I heard. Mobiles are a much greater danger. I was involved with experiments in Australia on headsets in telephone call centres to try and protect against squeals which mobiles are suspected of causing. The company spent millions trying to protect its staff against these things and you are still outlawed from having a mobile on in one of their call centres. I would be as concerned about my hearing as the interference to the equipment as in the telephone network there is no real amplification but the headsets used on aircraft do have amplifiers yet squeals believed to be caused by mobiles ruptured the eardrums of a number of staff and left others with balance problems due to damage to the inner ear.
