Map and status
Nødnett covers 86 per cent of mainland Norway and has almost 100 per cent population coverage. The radio network consists of about 2100 base stations that are located based on topography, distance and coverage from other base stations in the area.
- Nødnett coverage map
- Nødnett's operational status provides information about coverage outages in Nødnett. Nødnett's operational status helps you plan and manage various incidents.
Expanded coverage options
Gateway and repeater
Most vehicle-mounted radios have the ability to operate as a local base station (Gateway) with limited functionality, either to provide local coverage or to establish a connection to Nødnett.
Portable Base Stations
Nødnett has 8 portable base stations (TBS). These can be driven out and provide temporary coverage when the need arises, for example in the event of a (presumed) long-term outage or in the event of a need for coverage in an area that does not have coverage. DSB's portable base stations have a satellite antenna to connect the base station to the core network and are not dependent on other electronic communications. Ordering TBS is done via the operating organizations in Nødnett.
Radio to radio
No coverage? Emergency network radios can also be used direct radio to radio (called direct mode/DMO). It enables communication locally in common DMO voice groups without being connected to Nødnett. The contact between radio terminals in DMO depends on terrain, obstacles, and distance. A DMO repeater will be able to receive and forward DMO traffic automatically between two or more radio terminals that cannot reach each other directly.
Local coverage from some base stations
Several base stations in Nødnett are programmed to work locally if the base station loses connection to the rest of Nødnett. A base station will then provide coverage locally and works in so-called Local Site Trunking (LST).
Indoor coverage
Most buildings achieve satisfactory indoor coverage for Nødnett. Nevertheless, the coverage inside depends on the building's construction, and on the distance and direction to the nearest base station. In buildings where the coverage from the surface network is not sufficient, there may be a need to supplement with special technical solutions. Such solutions usually contain one or more repeaters, enumerators, and/or cables.
In some buildings, the use of gateways from the emergency services' cars can provide temporary indoor coverage. Fixed facilities for indoor coverage can be established after approval from DSB.
Coverage in tunnels
There are a total of around 480 road and rail tunnels that have been installed, or are planned to be developed with, their own facilities to provide Nødnett coverage. To get Nødnett coverage in a tunnel, a separate transmitter can be set up, either at the opening that provides coverage into the tunnel, or by installing an indoor system inside the tunnel. Shorter tunnels, less than 500 meters, often have coverage from a nearby base station.
Coverage at sea
Nødnett's base stations along the coast have been upgraded to reach 45 natural miles or 83 km out to sea. The coverage out to sea will vary depending on where the base station is located on land. At the next review of the Nødnett coverage map, the service will be updated so that it also shows coverage at sea.
Cover in the air
Nødnett has established special coverage for aircraft up to 8,000 feet, so-called AGA (Air-Ground-Air). About 90 base stations provide cover in the air for aircraft.