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EVS-EN 303 347-2 V2.1.1:2021

Ilmaradarid; Raadiospektrile juurdepääsu harmoneeritud standard; Osa 2. Ilmaradar, mis töötab sagedusvahemikus 5250 MHz kuni 5850 MHz (C sagedusribas)

Üldinfo
Kehtiv alates 15.06.2021
Alusdokumendid
ETSI EN 303 347-2 V2.1.1
Tegevusala (ICS grupid)
33 SIDETEHNIKA
Direktiivid või määrused
puuduvad
ETSI standardeid meie e-poest osta ei saa. Neid on võimalik tasuta alla laadida siit.
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
15.06.2021
Põhitekst
The present document specifies technical characteristics and methods of measurements for C-band meteorological radar systems intended for the surveillance and classification of hydrometeors with the following characteristics: • Operating in the following frequency range: - 5 250 MHz to 5 850 MHz. • Utilizing unmodulated pulses or phase/frequency modulated pulses also known as pulse compression. • The maximum output power (PEP) does not exceed 1 MW (i.e. 90 dBm). • The transceiver antenna connection and its feeding RF line use a hollow metallic rectangular waveguide. • The antenna rotates and can be changed in elevation. • The used waveguide is WR187/WG12 waveguide according to IEC 60153-2. • The antenna feed is waveguide based and the antenna is passive. • The orientation of the transmitted field from the antenna can be vertical or horizontal orientated or it can be both simultaneously. • At the transceiver output an RF circulator is used. NOTE 1: Since at the transceiver output an RF circulator is used, it is assumed that the transceiver characteristics remain independent from the antenna. NOTE 2: According to provision 5.452 of the ITU Radio Regulations, ground-based radars used for meteorological purposes in the band 5 600 MHz to 5 650 MHz are authorized to operate on a basis of equality with stations of the maritime radio navigation service. NOTE 3: Further technical and operational characteristics of meteorological radar systems can be found in Recommendation ITU-R M.1849-1. NOTE 4: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU is given in Annex A.
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