Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR10091)
Radio microphones and ALD

RIR1009-01
Radio microphones
31.4 - 39.6 MHz
10 mW e.r.p.
Edition 5.0 / 01.01.2024

Nr Parameter2)DescriptionComments
1Radiocommunication service--
2ApplicationRadio microphones-
3Frequency bandA: 31.4 - 31.6 MHz
B: 32.4 - 32.6 MHz
C: 36.0 - 36.2 MHz
D: 36.6 - 36.8 MHz
E: 37.0 - 37.2 MHz
F: 37.2 - 37.4 MHz
G: 37.8 - 38.0 MHz
H: 38.4 - 38.6 MHz
I: 38.9 - 39.1 MHz
K: 39.4 - 39.6 MHz		Centre frequencies:
31.5 MHz, 32.5 MHz, 36.1 MHz, 36.7 MHz, 37.1 MHz,
37.3 MHz, 37.9 MHz, 38.5 MHz, 39.0 MHz, 39.5 MHz
4Channelling--
5Modulation / Occupied bandwidth- / Max. 50 kHz-
6Direction / Separation--
7Transmit power / Power densityMax. 10 mW e.r.p.-
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: License exempt.
Liechtenstein: General authorisation.		Operation on NIB / NPB. (Non interference basis / non protection basis).
10Additional essential requirements--
11Frequency planning assumptionsEN 300 422-1 or EN 300 422-2 or EN 300 422-3.-
12Planned changes--
13ReferenceEN 300 422-1 or EN 300 422-2 or EN 300 422-3 /-/-.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/280
2023/9009/CH		-
15RemarksEN 301 489-9-

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