Radiofrequency electromagnetic fields (EMF)

Radiofrequency electromagnetic fields (EMF) are a type of non-ionizing electromagnetic radiation found on the electromagnetic spectrum covering the range of frequencies below 300 GHz.

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About radiofrequency EMF

Radiofrequency EMF are invisible waves that travel through space and exert force on charged particles. These waves have been used for many years to transmit information between an antenna and a device without the use of wires.

Radiofrequency signals are transmitted from stations to radio receivers. For example:

In Canada, specific radiofrequency bands are designated for different applications.

Radiofrequency EMF can also be used in products that serve to heat things. This is known as induction heating or dielectric heating.

Physical properties of radiofrequency EMF

There are 3 main characteristics of radiofrequency EMF:

The intensity of radiofrequency EMF drops off very quickly from its source.

Sources of radiofrequency EMF

Many every day devices use radiofrequency EMFs to transmit information wirelessly such as:

Other examples of common devices that emit radiofrequency EMF include:

Learn about how Safety Code 6 protects you from radiofrequency EMF.

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