Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR07031)
Weather radar

RIR0703-02
Micro-rain radar
24.05 - 24.25 GHz
-
Edition 1.0 / 01.04.2019

Nr Parameter2)DescriptionComments
1Radiocommunication serviceRadiolocation-
2ApplicationMeteorologyMicro-rain radar
3Frequency band24.05 - 24.25 GHzCenter frequency 24.23 GHz
4Channelling--
5Modulation / Occupied bandwidthFMCW / max. ±17.5 MHzOBW including frequency excursion and tolerance.
Sweep period: 0.52 ms, Sweep rate: 1.922 kHz.
6Direction / Separation--
7Transmit power / Power densityMax. 100 mW (20 dBm), elevation angle +90° (±10°).
Antenna Gain: up to 40 dBi (parabolic dish).
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: License required.
Liechtenstein: Individual assignment required.		-
10Additional essential requirements--
11Frequency planning assumptions-84 dBm/MHz (corresponding to a -44 dBm/MHz e.i.r.p. density) in the frequency bands below 24.05 GHz and above 24.45 GHz.-
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