Emergency network (TETRA)

What is the TETRA Communications System?

Terrestrial Trunked RAdio (TETRA) is a professional mobile radio system, with specifications for communication bilateral .

TETRA was specifically designed for the use of government agencies, emergency services, (police forces, firefighters, ambulances), railway transport, transport services in General, and the military.

Both the mobile devices, such as transmitting bases, are more potent than the ordinary cell phones to "ensure a safer mode of communication".

How can the TETRA System affect the health of users and residents in the vicinity of antennas?

The health risks are similar in nature to those of other systems of mobile communication. There is the aggravation of emission frequencies are lower and closer to the natural frequencies of the human body. Therefore, are bio-eletromagnéticas interference.