ÖVE/ÖNORM EN 303347-1 V2.1.1

The present document specifies technical characteristics and methods of measurements for S band meteorological radar systems intended for the surveillance and classification of hydrometeors with the following characteristics: • Operating in the following frequency range: - 2 700 MHz to 2 900 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 WR284/WG10 waveguide according to IEC 60153-2 [i.2] with a minimum length between the output of the transmitter and the input of the antenna of 2 886 mm (20 times the wavelength of the waveguide cut-off frequency). • 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 polarized or it can be both simultaneously. • At the transceiver output an RF circulator is used.