The higher frequencies include everything from the radio and television broadcast antennas, portable radio systems, microwave antennas, to satellite and radar to all of the wireless communications devices everyone is using today.
As a general rule the frequencies given off by radio transmitters, satellites and radar systems are sufficiently far away and of low level not to be of major concern to the average householder. On the other hand the RF in the microwave spectrum given off by Wi-Fi, a cordless (DECT) phone, a mobile phone, a tablet, a Smart Meter, a digital baby monitor, a wireless games console or a nearby mobile phone mast can be much higher and as a result have a much greater potential effect on the human body.We use these devices day-in, day-out, often without a thought to whether or not they are safe. Many of us think that if they were not safe, they wouldn’t be available for us to use. An accumulating body of research suggests that exposure to these technologies could have long- term implications for our health. This has led the IARC (the World Health Organisation’s International Agency for Research on Cancer) to classify powerline and radio frequency radiation as “possible carcinogens” (cancer-causing agents).(http://www.iarc.fr/en/media- centre/pr/2011/pdfs/pr208_E.pdf).
More studies need to be done on the subject to reach a definitive conclusion. However, if you are concerned about the potential health effects of electromagnetic and radio frequency radiation, there are things you can do to help to reduce your exposure to these fields and to mitigate potentially harmful effects.
Typical sources of radio frequency and microwave radiation: