Understanding how non-ionizing radiation frequencies are
generated by wired and wireless products, where they are emitted from and how
penetrate the body are very important safety considerations.
Shields protect users from near and far field radiation frequencies (RF),
regardless of the source, technology, or network communication protocol.
electromagnetic radiation generated by wired and wireless products consist of two
elements; non-ionizing radiation frequencies and magnetic fields.
Although they are frequently and incorrectly used interchangeably with
terms such as EMF, EMF and RF, these
elements are different and it is the health effects caused by
non-ionizing radiation frequencies fueling the cell phone and power line
controversy. This page presents information about the near and far field
components of cell phone radiation non-ionizing frequencies. Click here for information
about magnetic fields.
cellular phone communicates
with a "cell" mast using a radio system consisting of a transmitter,
receiver and antenna. Depending upon the design and as depicted by
the red areas shown in the phone below, most of the phone serves as the
radio system and antenna (click
here for additional information about cell phone radio system radiation).
the device level, current
cell phone communication operating frequencies are below 2.6 GHz., and the radio waves emitted by the phone itself are referred to as the
'near field.' Although it is the near field non-ionizing radiation responsible for the cell phone health effects
reported since 1993, reports addressing health risks at lower
frequencies, such as battery and color display emissions, have also been
published with increased frequency every year since 2000. (AegisGuard™
(L) Life Series and
XP Radiation Shields provide
shielding protection from both high and low
non-ionizing radiation frequencies).
field' radio waves are the non-ionizing radiation from the cell mast,
and while radiation exposure to a cellular phone user is higher from the
phone than the mast, far field frequencies of 1.0 THz. (1 trillion
Hz., or 1 thousand GHz.) can be generated at the carriers core
communication center when fiber is employed.
Although cell masts
generate their own near and far fields, and most people are never close to its near field, a controversy also exists over the
health effects of far field radiation, particularly when
within close proximity to people. Since the long term health effects of
both near and far
field radiation continue to be debated, some scientists believe cellular phones
are the largest experiment in history using unwilling test subjects.
transmitter inside your phone periodically sends radio wave signals to
the cell mast so that the network knows where you are when a call
comes through, and the receiver inside your phone receives the radio
wave signals from the cell mast. When you are on a call, the cell mast
monitors your phone to ensure it is performing at an optimum power
level. If you are out of range or an obstruction is encountered, the
cell mast sends a signal to the phone causing it to increase its