Radiodifusão

Documentos acerca da exposição a sistemas de radiodifusão.

2410, 2024
Título Determination of the radiated power through ground-based field strength measurements in the frequency range from 30 MHz to 6000 MHz
Resumo The radiated power of a transmitter is one of the most important parameters which characterise a transmitter
and its emissions. Usually, it is not possible to measure the radiated power directly. However, there are two
different methods to determine the radiated power indirectly. The first method would measure the transmitter
output power and calculate the radiated power by taking into account cable losses and antenna gain. The
second method measures the field strength and calculates the radiated power by taking into account the
measurement distance and the propagation loss. The purpose of this ECC Recommendation is to provide common measurement methods which will enable
CEPT administrations to determine the radiated power of a transmitter in the frequency range from 30 MHz to
6000 MHz from field strength measurements reducing as much as possible the uncertainty of the
measurement.
Fonte Electronic Communications Committee (ECC)
Origem Internacional
Autor/Editor Electronic Communications Committee (ECC)
Disponibilidade Disponível online
Endereço https://docdb.cept.org/
/download/4396
Referência ECC Recommendation (12)03
Data Outubro 2023
2410, 2024
Título Basic standard for the in-situ assessment of exposure to radio frequency electromagnetic fields in the vicinity of a broadcast site
Resumo This document specifies the method for assessing overall exposure from all fixed radio frequency sources at a broadcast site. This assessment can be applied at any time but is carried out when the exposure situation changes in or around the aforementioned site. This document can play an essential role in the coordination of different stakeholders, with respect to ensuring EMF exposure compliance in the vicinity of a broadcast site especially for equipment installed within the site.
Fonte European Committee for Electrotechnical Standardization (CENELEC)
Origem Internacional
Autor/Editor European Committee for Electrotechnical Standardization (CENELEC)
Disponibilidade Disponível por encomenda
Endereço https://standards.cencenelec.eu
/dyn/www/f?p=CENELEC:110:::::FSP_PROJECT,FSP_ORG_ID:67142,1258483&cs=1D9C5EAEDE27B9D1C04CDD93632AF846E
Referência CLC/TC 106X
Data Abril 2022
2410, 2024
Título Survey of radio wave exposure 2022
Resumo In March and April 2022, ARPANSA scientists measured public exposure to radiofrequency electromagnetic energy, also known as radio waves, at 50 sites across Melbourne. At the locations measured, the public’s exposure to radio waves from wireless technology was found to be well below the limits in the Australian safety standard. The measurements collected in Melbourne represent the typical radio wave exposures that ARPANSA would expect to see in other major Australian cities.
Fonte
Australian Radiation Protection and Nuclear Safety Agency (ARPANSA)
Origem Austrália
Autor/Editor
Australian Radiation Protection and Nuclear Safety Agency (ARPANSA)
Disponibilidade Disponível online
Endereço https://www.arpansa.gov.au
/research-and-expertise/surveys-and-studies/survey-radio-wave-exposure-2022
Referência
Data 2022
2410, 2024
Título Power lines and electrical products: Extremely low frequency electric and magnetic fields
Resumo Power lines and electrical products emit extremely low frequency electric and magnetic fields (EMF). Learn about the safety of power lines and electrical products.
Fonte Health Canada
Origem Canadá
Autor/Editor Health Canada
Disponibilidade Disponível online
Endereço https://www.canada.ca/en/health-canada
/services/health-risks-safety/radiation/everyday-things-emit-radiation/power-lines-electrical-appliances.html
Referência
Data Novembro 2022
2410, 2024
Título Localized human exposure limits for radiofrequency fields in the range of 6 GHz to 300 GHz
Resumo Health Canada is providing recommendations for localized human exposure limits for radiofrequency electromagnetic fields (EMF) in the range of 6 GHz to 300 GHz. These have been developed at the request of Innovation, Science and Economic Development Canada (ISED) in order to support the establishment of new compliance requirements for wireless devices that will operate in this frequency range. These localized human exposure limits are recommended in scenarios where wireless devices operating in the 6 GHz to 300 GHz range are held close to the body, such as smartphones and tablets, including some 5G-enabled devices.
Fonte Health Canada
Origem Canadá
Autor/Editor Health Canada
Disponibilidade Disponível online
Endereço https://www.canada.ca/en/health-canada
/services/health-risks-safety/radiation/types-sources/radiofrequency-fields/notice-localized-human-exposure-limits-range-6-ghz-300-ghz.html
Referência
Data Junho 2021
2020-02-10T10:37:03+00:00
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