You will actually be surprised!
RF Radiofrequency (RF) and microwave (MW) radiation are electromagnetic
radiation in the frequency ranges 3 kilohertz (kHz) - 300 Megahertz
(MHz), and 300 MHz - 300 gigahertz (GHz), respectively. Research
continues on possible biological effects of exposure to RF/MW radiation
from radios, cellular phones, the processing and cooking of foods, heat
sealers, vinyl welders, high frequency welders, induction heaters, flow
solder machines, communications transmitters, radar transmitters, ion
implant equipment, microwave drying equipment, sputtering equipment and
glue curing.
WHAT ARE "RADIOFREQUENCY" AND MICROWAVE RADIATION?
Electromagnetic radiation consists of waves of electric and magnetic energy moving together (
i.e.,
radiating) through space at the speed of light. Taken together, all
forms of electromagnetic energy are referred to as the electromagnetic
"spectrum."
Radio waves and microwaves emitted by transmitting antennas
are one form of electromagnetic energy. They are collectively referred
to as "radiofrequency" or "RF" energy or radiation. Note that the term
“radiation” does not mean “radioactive.”
Often, the terms
"electromagnetic field" or "radiofrequency field" may be used to
indicate the presence of electromagnetic or RF energy.
The RF
waves emanating from an antenna are generated by the movement of
electrical charges in the antenna. Electromagnetic waves can be
characterized by a wavelength and a frequency. The wavelength is the
distance covered by one complete cycle of the electromagnetic wave,
while the frequency is the number of electromagnetic waves passing a
given point in one second. The frequency of an RF signal is usually
expressed in terms of a unit called the "hertz" (abbreviated "Hz"). One
Hz equals one cycle per second. One megahertz ("MHz") equals one
million cycles per second.
Different forms of electromagnetic
energy are categorized by their wavelengths and frequencies. The RF
part of the electromagnetic spectrum is generally defined as that part
of the spectrum where electromagnetic waves have frequencies in the
range of about 3 kilohertz (3 kHz) to 300 gigahertz (300 GHz).
Microwaves are a specific category of radio waves that can be loosely
defined as radiofrequency energy at frequencies ranging from about 1 GHz
upward.