KXJB-TV mast
Encyclopedia
The KXJB-TV mast is a television
transmitting tower in Traill County
, North Dakota
, United States
. At 2060 ft (628 m), it is the fourth-tallest artificial structure in the world, shorter by 3 ft (1 m) than the KVLY-TV mast
which stands a few miles away.
Located 3.5 miles (6 km) northeast of Galesburg, North Dakota
, it was completed in 1966, to replace the station's previous mast, a 1,085-foot (331 m) tower 15 miles (25 km) northeast of Valley City, North Dakota
which was sold to KOVC
, an AM
radio
station.
The antenna transmits at 100 kW for CBS
affiliate KXJB of Valley City/Fargo; the station and tower are owned by Parker Broadcasting of Fargo
.
helicopter
severed some guy wires (all four aboard the helicopter were killed in the mishap). The television station was off the air for eight days, finally resuming broadcasts from their previous (KOVC) tower. A replacement mast of the same height as the one destroyed was completed in four and a half months.
The second mast fell during an ice storm which hit the area on April 6, 1997, subjecting it to wind gusts of 70 mph and causing at least four inches (100 mm) of ice to accumulate on the structure, resulting in the structure's failure at 6:09 P.M.. Cable programming was resumed by 8:34 and broadcasts by 3 P.M. the following afternoon through coordination with other affiliates; a 735-foot (224 m) temporary tower was completed and resumed broadcasts by July 10. This tower still stands next to the full-height mast.
Work began on replacement of the full-height mast with a more durably-built structure on April 1, 1998, and had reached the tower's previous height by July 30. That day members of the construction crew affixed a four-foot (1.2 m) flagpole to the top of the tower, making the structure's height effectively 2064 ft (629 m), or one foot higher than the KVLY mast (the flagpole was later removed). Broadcasting for Channel 4 was switched to the new mast on August 15.
Television
Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...
transmitting tower in Traill County
Traill County, North Dakota
Traill County is a county located in the U.S. state of North Dakota. The 2010 census listed the population at 8,121. Its county seat is Hillsboro, and its largest city is Mayville.-History:...
, North Dakota
North Dakota
North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....
, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. At 2060 ft (628 m), it is the fourth-tallest artificial structure in the world, shorter by 3 ft (1 m) than the KVLY-TV mast
KVLY-TV mast
The KVLY-TV mast is a tall television-transmitting mast in Blanchard, Traill County, North Dakota, United States, used by Fargo station KVLY-TV channel 11...
which stands a few miles away.
Located 3.5 miles (6 km) northeast of Galesburg, North Dakota
Galesburg, North Dakota
As of the census of 2000, there were 157 people, 66 households, and 44 families residing in the city. The population density was 937.8 people per square mile . There were 76 housing units at an average density of 454.0 per square mile...
, it was completed in 1966, to replace the station's previous mast, a 1,085-foot (331 m) tower 15 miles (25 km) northeast of Valley City, North Dakota
Valley City, North Dakota
As of the census of 2000, there were 6,826 people, 2,996 households, and 1,668 families residing in the city. The population density was 2,062.5 per square mile . There were 3,250 housing units at an average density of 982.0 per square mile...
which was sold to KOVC
KOVC
KOVC is a radio station based in Valley City, North Dakota, USA. It is a full service station, with frequent weather, news and sports updates...
, an AM
Amplitude modulation
Amplitude modulation is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the strength of the transmitted signal in relation to the information being sent...
radio
Radio
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
station.
The antenna transmits at 100 kW for CBS
CBS
CBS Broadcasting Inc. is a major US commercial broadcasting television network, which started as a radio network. The name is derived from the initials of the network's former name, Columbia Broadcasting System. The network is sometimes referred to as the "Eye Network" in reference to the shape of...
affiliate KXJB of Valley City/Fargo; the station and tower are owned by Parker Broadcasting of Fargo
Fargo, North Dakota
Fargo is the largest city in the U.S. state of North Dakota and the county seat of Cass County. In 2010, its population was 105,549, and it had an estimated metropolitan population of 208,777...
.
Collapses
The mast has fallen and been rebuilt twice. The first collapse occurred at 9:08 A.M. February 14, 1968 when the rotor of a MarineUnited States Marine Corps
The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...
helicopter
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...
severed some guy wires (all four aboard the helicopter were killed in the mishap). The television station was off the air for eight days, finally resuming broadcasts from their previous (KOVC) tower. A replacement mast of the same height as the one destroyed was completed in four and a half months.
The second mast fell during an ice storm which hit the area on April 6, 1997, subjecting it to wind gusts of 70 mph and causing at least four inches (100 mm) of ice to accumulate on the structure, resulting in the structure's failure at 6:09 P.M.. Cable programming was resumed by 8:34 and broadcasts by 3 P.M. the following afternoon through coordination with other affiliates; a 735-foot (224 m) temporary tower was completed and resumed broadcasts by July 10. This tower still stands next to the full-height mast.
Work began on replacement of the full-height mast with a more durably-built structure on April 1, 1998, and had reached the tower's previous height by July 30. That day members of the construction crew affixed a four-foot (1.2 m) flagpole to the top of the tower, making the structure's height effectively 2064 ft (629 m), or one foot higher than the KVLY mast (the flagpole was later removed). Broadcasting for Channel 4 was switched to the new mast on August 15.
Structures of similar height
- KVLY/KTHI TV Mast (2063 ft - 628.8 m)
- KXTV/KOVR TowerKXTV/KOVR TowerThe KXTV/KOVR tower is a guyed communication tower in Walnut Grove, California, United States that rises to 2,049 feet in height. Built in 2000, it is the tallest structure in California, the 4th tallest guyed mast in the world , and the 6th tallest structure to ever have existed if the destroyed...
(2049 ft - 624.5 m)
External links
- Archive of page at Channel 4
- Entry of 224 metres tower close to main tower in FCC-database
- Listing at the Skyscraper Page
- http://www.skyscraperpage.com/diagrams/?b1322
- http://www.pbase.com/talshiarr/kvly