Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR07031)
Weather radar

RIR0703-03
Cloud Radar
33.4 - 35.2 GHz
-
Edition 1.0 / 01.04.2019

Nr Parameter2)DescriptionComments
1Radiocommunication serviceRadiolocation-
2ApplicationMeteorologyCloud radar
3Frequency band33.4 - 35.2 GHz-
4Channelling--
5Modulation / Occupied bandwidth-/ max. ± 30 MHzPulse width: 100 ns, 400 ns or 200 ns (typical) and PRF 2.5 to 10 kHz.
6Direction / Separation--
7Transmit power / Power densityMax. 30 kW (peak) (44.8 dBW), elevation angle +90° (±10°).Average power: 8.8 to 20.8 dBW (17.8 dBW for a typical 200 ns pulse width and 10 kHz PRF).
Antenna Gain: up to 55 dBi (typical 50 dBi, parabolic dish).
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: License required.
Liechtenstein: Individual assignment required.		-
10Additional essential requirements--
11Frequency planning assumptionsmaximum average unwanted e.i.r.p. density of 6.2 dBW/MHz in the 35.5-36 GHz band.
maximum average unwanted e.i.r.p. density of -2 dBW/MHz in the 36-37 GHz band.		-
12Planned changes--
13Reference-Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification number2019/9501/CH
G/TBT/N/CHE/233		-
15RemarksECC Report 166-

Normative part: 1 to 11
Informative part: Nr 12 to 15

1) RIR for similar and/or other applications are available under: https://www.bakom.admin.ch/bakom/en/home/frequenzen-antennen/nationaler-frequenzzuweisungsplan/schnittstellen-anforderungen.html
2) For explanations and legal status, please refer to basis document 784.101.21 / RIR0000