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Warkworth 2 Dish
The Warkworth 30m Radio Telescope is a radio telescope at the Warkworth Radio Astronomical Observatory, located just south of Warkworth, New Zealand, about 50km north of the Auckland CBD. It is operated by the Institute for Radio Astronomy and Space Research, Auckland University of Technology. Originally used for international communication, the university was formally granted a licence to operate the Warkworth 2 antenna by Telecom New Zealand in November 2010. Technical information The telescope is a 30-metre Cassegrain wheel-and-track beam waveguide antenna. It was manufactured in 1983 by Nippon Electric Corp., and was first used by Telecom NZ for communication between New Zealand and the Pacific Islands. Gallery File:WARK30M01.JPG, The telescope and associated buildings File:WARK30M02.JPG, Closer view of the dish and track/wheel assembly File:WARK30M03.JPG, Close up of the dish and secondary reflector File:30WarkworthManufPlate.JPG, Manufacturers Plate See also * Warkworth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Telescope
A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency portion of the electromagnetic spectrum emitted by astronomical objects, just as optical telescopes are the main observing instrument used in traditional optical astronomy which studies the light wave portion of the spectrum coming from astronomical objects. Unlike optical telescopes, radio telescopes can be used in the daytime as well as at night. Since astronomical radio sources such as planets, stars, nebulas and galaxies are very far away, the radio waves coming from them are extremely weak, so radio telescopes require very large antennas to collect enough radio energy to study them, and extremely sensitive receiving equipment. Radio telescopes are typically large parabolic ("dish") antennas similar to those employed in tracking an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warkworth Radio Astronomical Observatory
The Warkworth Radio Astronomical Observatory is a radio telescope observatory, located just south of Warkworth, New Zealand, about 50 km north of the Auckland CBD. It is operated by the Institute for Radio Astronomy and Space Research, Auckland University of Technology. The WARK12M 12m Radio Telescope was constructed in 2008. In 2010, a licence to operate the Telecom New Zealand 30m dish was granted, which led to the commissioning of the WARK30M 30m Radio Telescope. The first observations made in conjunction with the Australian Long Baseline Array took place in 2011. History The complex was first developed for long-range telecommunications, operated by the New Zealand Post Office and opening on 17 July 1971. The station, primarily connecting to fourth generation Intelsat satellites, was used for satellite telephone circuits and television, including the broadcast of the 1974 British Commonwealth Games, held in Christchurch. The shallow valley site was chosen as it was s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warkworth, New Zealand
Warkworth (Māori: ''Mahurangi'') is a town on the Northland Peninsula in the upper North Island of New Zealand. It is in the northern part of the Auckland Region. It is located on State Highway 1, north of Auckland and south of Whangārei, and is at the head of Mahurangi Harbour. The Warkworth district is known as the ''Kowhai Coast'', named after the native kōwhai tree, and the town's annual Kowhai Festival is one of the largest community festivals in the country, running for around a week in spring. New Zealand's main satellite communications ground station is located south of Warkworth. From 2018 Warkworth is served by hourly buses to Hibiscus Coast Station and less frequent buses to Snells Beach, Algies Bay, Matakana, Omaha and Point Wells. InterCity buses run through Warkworth from Auckland to Kerikeri and Mahu City Express twice a day to Auckland. Warkworth Museum, a local museum showcasing local history, opened in 1979. Geography Warkworth is located on the Mahur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auckland CBD
The Auckland Central Business District (CBD), or Auckland city centre, is the geographical and economic heart of the Auckland metropolitan area. It is the area in which Auckland was established in 1840, by William Hobson. It is New Zealand's leading financial hub, and the centre of the country's economy; the GDP of the Auckland Region was $126.917 billion in the year ending March 2022. The CBD is one of the most densely developed places in New Zealand, with many commercial and some residential developments packed into a space of only . The area is made up of the city's largest concentration of skyscrapers and businesses. Bounded by several major motorways and by the harbour coastline in the north, it is surrounded further out by mostly suburban areas; it is bounded on the North by Waitematā Harbour, east by Parnell, southeast by Grafton, south by Mount Eden, southwest by Newton, west by Freemans Bay and northwest by Viaduct Harbour. Geography Located on the northern sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auckland University Of Technology
Auckland University of Technology (AUT) ( mi, Te Wānanga Aronui o Tāmaki Makau Rau) is a university in New Zealand, formed on 1 January 2000 when a former technical college (originally established in 1895) was granted university status. AUT is New Zealand's third largest university in terms of total student enrolment, with approximately 29,100 students enrolled across three campuses in Auckland. It has five faculties, and an additional three specialist locations: AUT Millennium, Warkworth Radio Astronomical Observatory and AUT Centre for Refugee Education. AUT enrolled more than 29,000 students in 2018, including 4,194 international students from 94 countries and 2,417 postgraduate students. AUT's student population is diverse with a range of ethnic backgrounds including New Zealand European, Asian, Māori and Pasifika. Students also represent a wide age range with 22% being aged 25–39 years and 10% being 40 or older. AUT employed 2,474 full-time equivalent (FTE) staff in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecom New Zealand
Spark New Zealand Limited is a New Zealand telecommunications company providing fixed-line telephone services, a mobile phone network, internet access services, and (through its Spark Digital division) ICT services to businesses. It was known as Telecom New Zealand until it was rebranded with its current name in 2014. It has operated as a publicly traded company since 1990. Spark is the second-largest wireless carrier in New Zealand, with 2.3 million subscribers as of July 2017. Spark is one of the largest companies by value on the New Zealand Exchange (NZX). As of 2007, it was the 39th largest telecommunications company in the OECD. The company is part of New Zealand Telecommunications Forum. Telecom New Zealand was formed in 1987 from a division of the New Zealand Post Office, and privatised in 1990. In 2008, Telecom was operationally separated into three divisions under local loop unbundling initiatives by central government – Telecom Retail; Telecom Wholesale; and Cho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam Waveguide Antenna
A beam waveguide antenna is a particular type of antenna dish, at which waveguides are used to transmit the radio beam between the large steerable dish and the equipment for reception or transmission, like e.g. RF power amplifiers. Principle of operation Beam waveguide antennas are used in large radio telescopes and satellite communication stations as an alternative to the most common parabolic antenna design, the conventional "front fed" parabolic antenna. In front feed, the antenna feed, the small antenna that transmits or receives the radio waves reflected by the dish, is suspended at the focus, in front of the dish. However, this location causes a number of practical difficulties. In high performance systems, complex transmitter and receiver electronics must be located at the feed antenna. This feed equipment usually requires high maintenance; some examples are water cooling for transmitters and cryogenic cooling for sensitive receivers. With the large dishes used in these sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Islands
Collectively called the Pacific Islands, the islands in the Pacific Ocean are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of several different concepts: (1) those countries and islands with common Austronesian origins, (2) the islands once (or currently) colonized, or (3) the geographical region of Oceania. This list of islands in the Pacific Ocean is organized by archipelago or border, political boundary. In order to keep this list of moderate size, the more complete lists for countries with large numbers of small or uninhabited islands have been hyperlinked. Name ambiguity and groupings The umbrella term ''Pacific Islands'' has taken on several meanings. Sometimes it is used to refer only to the islands defined as lying within Oceania Oceania (, , ) is a region, geographical region that includes Australasia, Melanesia, Micronesia, and Polynesia. Spann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warkworth Radio Telescope
The Warkworth 12m Radio Telescope is a radio telescope at the Warkworth Radio Astronomical Observatory, located just south of Warkworth, New Zealand, about 50 km north of the Auckland CBD. It is operated by the Institute of Radio Astronomy and Space Research of Auckland University of Technology and was constructed in 2008. Technical information The 12m diameter antenna was designed and constructed by COBHAM Satcom. The antenna is a fully steerable dual shaped Cassegrain with a main dish diameter of 12.1m and a secondary reflector diameter of 1.8m. The focal Length is 4.538m. The surface precision is 0.35mm (RMS) and the pointing accuracy is 18 inches. It operates in the L-Band, S-Band and X-Band with dual polarisation S and X-band feeds from COBHAM with room temperature receivers. The receiver systems cover 2.2 to 2.4 GHz at S-band and 8.1 to 9.1 GHz at X-band. It is mounted alt-azimuth and has slewing rates of 5 deg/s in azimuth and 1.25 deg/s in elevation, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Astronomy
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical object was in 1933, when Karl Jansky at Bell Telephone Laboratories reported radiation coming from the Milky Way. Subsequent observations have identified a number of different sources of radio emission. These include stars and galaxies, as well as entirely new classes of objects, such as radio galaxies, quasars, pulsars, and masers. The discovery of the cosmic microwave background radiation, regarded as evidence for the Big Bang theory, was made through radio astronomy. Radio astronomy is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve high angular resolution, as the resolving power of an interferometer is set ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Telescope
A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency portion of the electromagnetic spectrum emitted by astronomical objects, just as optical telescopes are the main observing instrument used in traditional optical astronomy which studies the light wave portion of the spectrum coming from astronomical objects. Unlike optical telescopes, radio telescopes can be used in the daytime as well as at night. Since astronomical radio sources such as planets, stars, nebulas and galaxies are very far away, the radio waves coming from them are extremely weak, so radio telescopes require very large antennas to collect enough radio energy to study them, and extremely sensitive receiving equipment. Radio telescopes are typically large parabolic ("dish") antennas similar to those employed in tracking an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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