Radio transmitters

Antennas

An overview of the locations of the transmitters are recorded on a map provided by the Federal Office of Communications. The transmitter locations are distinguished according to the type of radio service.

Mobile radio (2G, 3G, 4G and 5G):
includes base stations for 2G (GSM), 3G (UMTS), 4G (LTE) and 5G (NR) mobile communications.

“Radio broadcasting“:
includes FM radio (VHF), shortwave radio (HF), mediumwave radio (MW), digital audio broadcasting (DAB) and television stations.

GSM = Global System for Mobile Communications
UMTS = Universal Mobile Telecommunication System
LTE = Long Term Evolution
NR = New Radio

Accuracy of the displayed locations

OFCOM records the location of the installations for frequency allocation and coordination purposes. To achieve this, it is not necessary for the site coordinates to be accurate down to the nearest meter. Therefore, it is generally not possible to accurately identify the precise building on which the system is actually mounted based on the position of the displayed point.

Mobile radio systems less than 20 meters apart are combined into a single system.

Source: Federal Office of Communication.

Additional information about the issuer

A click of a mouse on a base station displays additional information.

  • Transmitting power (ERP): ERP (effective radiated power)
  • Diffusion: the transmission power is indicated in W (Watt).
  • Radio frequencies: the transmission power is indicated in the following categories:
  • – „very small“: The total power is between 1 and 10 V.
  • – „small“: The total power is between 10 and 100 W
    – „medium“: The total output is above the 1 kW range
  • – big”: the total output above the 1 kW range.
  • – These power specifications are a rough estimate of the radiated power (ERP), which is radiated in total at the designated location for the radio service concerned (e. g. broadcasting).
General map

5G radio frequency networks – antennae locations 

Synoptic map

4G Radio frequency Networks (LTE) – antennae sites

Synoptic map

3G radio frequency networks (UMTS) – antennae sites

Synoptic map

2G radio frequency networks (GSM) – Antennae sites

Synoptic map

Swiss radio and television stations

Search and display of radio and television stations (FM, DAB, TV, DVB-T). Display with indication of locations, transmission powers and programmes/frequencies/channels (for radio/TV). Concessionaires provide information on the composition of “packages” (DAB) and “bouquets” (DVB-T): SRG SSR – http://www.broadcast.ch, Tele Rätia – http://www.teleraetia.ch, Valaiscom – http://www.valaiscom.ch (Federal Office of Communication)

Synoptic map

radio links

Directional radio is used to transmit information (telephone, data, images) between two points. With very high directivity antennas (parabolic mirrors), radio waves are transmitted to the receiver in high frequency ranges (between 6 and 90 GHz) in a highly grouped form. Directional radio systems are installed in strategic locations in order to be able to cover long distances with near-optical visibility (no obstacles such as houses, trees, etc.) The display serves as information and does not represent legally binding information with respect to the authorised parameters. The accuracy of the indicated positions is limited to about 30 m. (Federal Office of Communication)

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