Published on 6 April 2023

Radio relay

Radio relay is a way of transmitting information from one location to another. With radio relay antennas, radio waves are bundled together with a carrier frequency and transmitted to the receiver in the microwave range (mainly between 1 and 40 GHz). Highly directional antennas are used, mounted at suitable locations so that they are able to cover large distances (quasi-optical line-of-sight connection). A typical antenna is the parabolic reflector. Highly directional antennas permit economic use of the available frequency spectrum despite large bandwidths.

Application for a licence for radio relay equipment

• Form fixed links

  PDF165.11 kB29 November 2018

• Form fixed links

  Word23.54 kB29 November 2018

Documents for radio relay equipment

• Microwave radio equipment, demand on technical specifications

  Word36.16 kB17 March 2021

• Microwave radio equipment, demand on technical specifications

  PDF318.91 kB15 March 2019

• Microwave antennas, demand on technical specifications

  PDF60.65 kB24 November 2016

• Microwave links point-to-point, important charasteristics for application in SUI

  PDF97.50 kB5 April 2023

• Microwave links point-to-point, choice of antenna polarization

  PDF100.20 kB5 April 2023

• Microwave links point-to-point, guidelines for using adaptive coded modulation

  PDF257.29 kB7 January 2015

Wind park - projects, information required for a technical assessment

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• Transmission of the documents

  In the case that you would prefer to fill out the form on paper, you can send the document to the following address: 

  Federal Office of Communications (OFCOM)
  Zukunftstrasse 44
  P.O. Box 252
  2501 Biel

  or by electronic way by one of the channels mentioned on the page:

  Electronic communication within the framework of administrative procedures

• Provision of telecommunications services

  In the case that you would use the frequency spectrum for the provision of telecommunications services you must announce it to OFCOM. Consult the following link to inform you and to announce:

  Telecommunication services providers (TSP)