Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR06031)
Maritime communications

RIR0603-10
Inland waterway communications
156 - 174 MHz
Inland waterway communications
Edition 6.0 / 01.01.2024

Nr Parameter2)DescriptionComments
1Radiocommunication serviceMaritime mobile-
2ApplicationInland waterway communicationsMaritime communications on inland waterways with ATIS. (Automatic Transmitter Identification System).
Inland waterways are those listed in annex 1 of the European Agreement of 19 January 1996 on Main Inland Waterways of International Importance (SR 0.747.207).
3Frequency band156 - 174 MHzChannel numbers and frequencies according to current version of "Regional Arrangement on the Radiocommunication Service for Inland Waterways".
4Channelling25 kHzPortable equipment with 12.5/25 kHz channel spacing shall be operated in the 25 kHz mode.
5Modulation / Occupied bandwidthG3E, G2B-
6Direction / Separation--
7Transmit power / Power densityMax. 25 W (On-board equipment).
Max. 6 W e.r.p. (Portable equipment).		Output power (operation mode high) of on-board equipment: 6 to 25 W.
The on-board equipment shall allow the operation with max. 1W output power (operation mode low) for ship-to-ship, ship-to-port-authorities and on-board communications.
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: Notification required. Radio operator certificate is required.
Liechtenstein: Individual assignment required.		Radio equipment is listed in the 'Ship station license'.
Radio equipment shall not be operated on Swiss territory and the Principality of Liechtenstein, with the exception of the Rhine, between Rheinfelden and Kembs. Shore stations for the purpose of communication with the vessels between Kembs and Rheinfelden are permitted.
10Additional essential requirementsEN 300 698Regional Arrangement on the Radiocommunication Service for Inland Waterways.
Commission Decision 2000/637/EG.
See also SR 784.101.21, VFAV, Anhang 1.
11Frequency planning assumptionsVertically polarized antenna.On-board equipment shall use vertically polarized antenna, providing a gain of -3.0 to 1.5 dBd and omnidirectional radiation pattern.
Refer to the Regional Arrangement on the Radiocommunication Service for Inland Waterways.
12Planned changes--
13ReferenceEN 300 698, EN 301 178 /-/-.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/280
2023/9009/CH		-
15RemarksEN 60945.-

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