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RECOMMENDATION ITU-R P CALCULATION OF FREE-SPACE ATTENUATION. (). Rec. ITU-R P The ITU Radiocommunication. ITU-R P Foreword. The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio- frequency. ITU-R P 1. ITU-R P *. (). . 1. 1. 1. 1. 2. ) .: d p = e. (1).: e.: (V/m).) 1(p.: (W).) 2(d.: (m).

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Unwanted emissions in the spurious domain. Specific attenuation model for rain for use in prediction methods. Radiation pattern of reference antennas for fixed wireless systems used for coordination studies and interference assessment in the frequency range between MHz and 70 GHz. Radio-frequency channel arrangements for fixed wireless systems operating in the 10 GHz band. Characteristics of precipitation for propagation modeling. Radio-frequency channel arrangements for radio-relay systems operating in the 23 GHz band.

Calculation of free-space attenuation. Radio-frequency channel arrangements for radio-relay systems operating in the 13 GHz frequency band. Radio-frequency channel arrangements for radio-relay systems operating in the 11 GHz band.

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ITU-R Standards

Propagation data and prediction methods required for the design of terrestrial line-of-sight systems. Characteristics of fixed wireless systems operating in frequency bands above about 17 GHz. Radio-frequency channel arrangements for medium- and high-capacity digital fixed wireless systems operating in the upper 6 It-ur 6 MHz band. Radio-frequency channel arrangements for fixed wireless systems operating in the 8 GHz 7 to 8 MHz band.

ITU-R Recommendations

Attenuation by atmospheric gases. Error performance and availability estimation for synchronous digital hierarchy terrestrial fixed wireless systems. Radio-frequency p.525-22 for systems of the fixed service operating in the 38 GHz band. Bandwidths and unwanted emissions of digital radio-relay systems.

Radio-frequency channel arrangements for radio-relay systems operating in the 15 GHz band. Radio-frequency channel utu-r block arrangements for fixed wireless systems operating in the 42 GHz Radio-frequency arrangements for fixed service systems. Radio-frequency channel arrangements for fixed wireless systems operating in the 18 GHz frequency band.

Radio-frequency channel arrangements for high-capacity fixed wireless systems operating in the lower 6 GHz 5 to 6 MHz band.

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Availability objectives for real digital fixed wireless links used in 27 km hypothetical reference paths and connections. Radio-frequency arrangements for systems in the fixed service operating in the band Characteristics of digital fixed wireless p.52-52 below about 17 GHz. Radio-frequency arrangements for systems of the fixed service operating in the 25, 26 and 28 GHz bands.

ITU-R Standards

The radio refractive index: Hypothetical reference digital path for radio-relay systems which may form part of an integrated services digital network with a capacity above the second hierarchical level.

Vocabulary of terms for the fixed service. Radio-frequency channel arrangements for fixed wireless systems operating in the 7 GHz 7 MHz band. Effects of multipath propagation on the design and operation of line-of-sight digital fixed p.525–2 systems.