37.118

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37.118 is a European Union regulation for radios used in the field of mobile communications. It defines the technical standards for radio equipment used in the EU, as well as the harmonized frequencies that such devices must be operated in. This technical standard is also applicable to third-party countries which have signed the European Union Agreement.

The application field of 37.118 mainly includes mobile communications, wireless technologies, telecommunications systems, and general radio-based systems that are intended to transmit information. The technical standards described in this regulation seek to ensure the interoperability of equipment used in the EU, and the efficient use of the spectrum. It also provides for a harmonized approach to address key issues such as radio frequency interference, health and safety, and environmental protection.

The working principles of 37.118 can be classified into three categories, namely, EMC principles, health and safety principles, and environmental principles. The EMC principle seeks to ensure that no electromagnetic disturbances are generated that result in an unacceptable level of interference to other nearby equipment. This includes the use of shielding devices, proper filtering, adequate grounding, as well as specific antenna configurations.

The health and safety principle requires manufacturers to control potential exposure to RF radiation during normal operation and comply with specific exposure limits. There are also requirements for the location of antennas and other equipment with respect to exposure to RF fields.

The environmental principle focuses on energy efficiency and encourages the use of energy-saving technologies in order to minimize energy consumption and reduce the emission of greenhouse gases. It also requires that the radio equipment meets specific requirements with respect to the materials used, restraints on hazardous substances, as well as the use of recyclable materials.

In conclusion, 37.118 is an important EU regulation that seeks to ensure the interoperability of radio equipment used in the EU, promote efficient use of the spectrum, and reduce the potential for environmental, health, and safety hazards. It sets technical standards for radio equipment and harmonized frequencies, and serves as a guideline for manufacturers of radio equipment in the EU and countries that have signed the European Union Agreement.

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