Haukåsen radar
Encyclopedia
Haukåsen Radar is one of two air traffic control
radar
s serving Oslo
's Gardermoen Airport
, the other being the airport radar itself. The radar is a landmark structure visible from most of Oslo, located inside a white radome
on the hillcrest Haukåsen in Østmarka
, elevation 357 meters above sea level
, south-east of the suburb of Haugerud
in the Grorud Valley
. The first radar to be built here in 1964, is exhibited at the National Aviation Museum in Bodø
in Northern Norway. The radar is unmanned and remotely operated by Oslo ATCC (the Area Control Center
at Røyken
south of Oslo) and is owned by Avinor
. The radar itself, rotating at a cycle of about 4 seconds, can be peeked through a grate when standing directly below the dome. The radiation from the antenna is reported by geocachers
to render GPS
equipment in its vicinity inoperable.
Air traffic control
Air traffic control is a service provided by ground-based controllers who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other...
radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...
s serving Oslo
Oslo
Oslo is a municipality, as well as the capital and most populous city in Norway. As a municipality , it was established on 1 January 1838. Founded around 1048 by King Harald III of Norway, the city was largely destroyed by fire in 1624. The city was moved under the reign of Denmark–Norway's King...
's Gardermoen Airport
Oslo Airport, Gardermoen
Oslo Airport, Gardermoen is the principal airport serving Oslo, Norway. It acts as the main domestic hub and international airport for Norway, and the second-busiest airport in the Nordic countries. A hub for Scandinavian Airlines and Norwegian Air Shuttle, and a focus city for Widerøe, it is...
, the other being the airport radar itself. The radar is a landmark structure visible from most of Oslo, located inside a white radome
Radome
A radome is a structural, weatherproof enclosure that protects a microwave or radar antenna. The radome is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. In other words, the radome is transparent to radar or radio waves...
on the hillcrest Haukåsen in Østmarka
Østmarka
Østmarka is a forested area to the east of Oslo and part of the congregation of woodland areas known as Oslomarka. The area is situated within the municipalities Oslo, Lørenskog, Rælingen, Ski and Enebakk...
, elevation 357 meters above sea level
Above mean sea level
The term above mean sea level refers to the elevation or altitude of any object, relative to the average sea level datum. AMSL is used extensively in radio by engineers to determine the coverage area a station will be able to reach...
, south-east of the suburb of Haugerud
Haugerud
Haugerud is a Norwegian surname, derived from the Old Norse word haugr meaning hill, knoll, or mound. Related derivatives include the common Norwegian surnames Haugan, Hauge and Haugen. Haugerud can refer to:-People:...
in the Grorud Valley
Grorud Valley
The Grorud Valley is a broad valley in eastern Oslo. Four of Oslo's boroughs, Bjerke in the west, Alna in the south, Grorud in the north, and Stovner in the east, lie within the valley....
. The first radar to be built here in 1964, is exhibited at the National Aviation Museum in Bodø
Bodø
is a city and a municipality in Nordland county, Norway. It is part of the Salten region.The city of Bodø was established as a municipality on 1 January 1838 . Bodin was merged with Bodø on 1 January 1968. Skjerstad was merged with Bodø on 1 January 2005...
in Northern Norway. The radar is unmanned and remotely operated by Oslo ATCC (the Area Control Center
Area Control Center
In air traffic control, an Area Control Center , also known as a Center, is a facility responsible for controlling instrument flight rules aircraft en route in a particular volume of airspace at high altitudes between airport approaches and departures...
at Røyken
Røyken
Røyken is a village and municipality in Buskerud county, Norway. The administrative centre of the municipality is the village of Midtbygda. The parish of Røken was established as a municipality on 1 January 1838 ....
south of Oslo) and is owned by Avinor
Avinor
Avinor AS is a state owned limited company in that operates most of the civil airports in Norway. The Norwegian state, via the Norwegian Ministry of Transport and Communications controls 100 percent of the share capital. Avinor was created on 1 January 2003, by the privatization of the...
. The radar itself, rotating at a cycle of about 4 seconds, can be peeked through a grate when standing directly below the dome. The radiation from the antenna is reported by geocachers
Geocaching
Geocaching is an outdoor sporting activity in which the participants use a Global Positioning System receiver or mobile device and other navigational techniques to hide and seek containers, called "geocaches" or "caches", anywhere in the world....
to render GPS
Global Positioning System
The Global Positioning System is a space-based global navigation satellite system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites...
equipment in its vicinity inoperable.