Naval Radio Transmitter Facility Grindavik
Encyclopedia
Naval Radio Transmitter Facility Grindavik ( short NRTF Grindavik) is a transmission facility of the US Navy at Grindavík
, maintained by the N62 Division. It is active on shortwave
and longwave
, there under the callsign TFK on 37.6 kHz.
Naval Radio Transmitter Facility Grindavik had originally two towers for its longwave service. One with a height of 243.8 metres and the other with a height of 182.9 metres, which were, when built the tallest man-made objects in Iceland. The smaller mast was replaced by a new mast of same height in 1983 situated at 63°51'3"N 22°27'6"W, the larger mast by a 304.8 metres tall guyed mast
at 63°51'1"N 22°28'0"W. The 1000' LF Communications Antenna/Tower and Helix House which replaced the existing 800’ tower was replaced with a 1000’ high structure broadbanded and including a 2500 SF Helix House.
Naval Radio Transmitter Facility Grindavik was the 1999 winner of the Defense Information Systems Agency (DISA) Outstanding Transmission Facility Award (Category II), and was a runner up in the same category in 1997.
The 1000' LF Communications Antenna/Tower and Helix House was structurally designed by Donald W. Anderson, PE (http://www.linkedin.com/in/donaldandersonpe) who additionally managed the design and construction programs while employed at Naval Facilities Engineering Command, Atlantic. The final design incorporated many new and improved items which required integrated electronic and structural designs- including a new and improved Helix House RF Copper Shielding design and installation method (designed by NAVFAC and co-production implemented by NAVFAC and the Icelandic Prime Contractor). All successes in the program improved on the former electronic efficiencies experienced in former designs and where partially influential in the before mentioned awards. It is the second tallest structure in Iceland
.
The N62 Division is divided into three subdivision: N62A, Antenna Maintenance; N62B, longwave equipment and ISABPS Maintenance and N62C, shortwave equipment and Ancillary Equipment Maintenance.
Grindavík
Grindavík is a fishing town at the peninsula of Reykjanes at the south-western coast of Iceland.It is one of the few cities with a harbour at this coast. Most of the 2,800 inhabitants work in the fishing industry...
, maintained by the N62 Division. It is active on shortwave
Shortwave
Shortwave radio refers to the upper MF and all of the HF portion of the radio spectrum, between 1,800–30,000 kHz. Shortwave radio received its name because the wavelengths in this band are shorter than 200 m which marked the original upper limit of the medium frequency band first used...
and longwave
Longwave
In radio, longwave refers to parts of radio spectrum with relatively long wavelengths. The term is a historic one dating from the early 20th century, when the radio spectrum was considered to consist of long, medium and short wavelengths...
, there under the callsign TFK on 37.6 kHz.
Naval Radio Transmitter Facility Grindavik had originally two towers for its longwave service. One with a height of 243.8 metres and the other with a height of 182.9 metres, which were, when built the tallest man-made objects in Iceland. The smaller mast was replaced by a new mast of same height in 1983 situated at 63°51'3"N 22°27'6"W, the larger mast by a 304.8 metres tall guyed mast
Guyed mast
A guyed mast is a tall thin vertical structure that receives support from guy lines.Guyed masts are frequently used for radio masts. The mast can either support aerials mounted at its top, or the entire structure itself can function as an antenna ; this is called a mast radiator...
at 63°51'1"N 22°28'0"W. The 1000' LF Communications Antenna/Tower and Helix House which replaced the existing 800’ tower was replaced with a 1000’ high structure broadbanded and including a 2500 SF Helix House.
Naval Radio Transmitter Facility Grindavik was the 1999 winner of the Defense Information Systems Agency (DISA) Outstanding Transmission Facility Award (Category II), and was a runner up in the same category in 1997.
The 1000' LF Communications Antenna/Tower and Helix House was structurally designed by Donald W. Anderson, PE (http://www.linkedin.com/in/donaldandersonpe) who additionally managed the design and construction programs while employed at Naval Facilities Engineering Command, Atlantic. The final design incorporated many new and improved items which required integrated electronic and structural designs- including a new and improved Helix House RF Copper Shielding design and installation method (designed by NAVFAC and co-production implemented by NAVFAC and the Icelandic Prime Contractor). All successes in the program improved on the former electronic efficiencies experienced in former designs and where partially influential in the before mentioned awards. It is the second tallest structure in Iceland
Iceland
Iceland , described as the Republic of Iceland, is a Nordic and European island country in the North Atlantic Ocean, on the Mid-Atlantic Ridge. Iceland also refers to the main island of the country, which contains almost all the population and almost all the land area. The country has a population...
.
The N62 Division is divided into three subdivision: N62A, Antenna Maintenance; N62B, longwave equipment and ISABPS Maintenance and N62C, shortwave equipment and Ancillary Equipment Maintenance.