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KiwiSAT
KiwiSAT, an amateur radio satellite developed by AMSAT-ZL, is to be New Zealand's first satellite. It is being designed and built by New Zealand radio amateurs supported by Massey University (Auckland) and various corporate sponsors. Overview The Satellite was built from scratch because of the impacts of ITAR restrictions/bans on technology sharing and was mothballed for a few years during the period of uncertainty and is now being prepared for flight. The key activity is testing and selecting the best batteries to replace the existing batteries. The design life expectancy of this "bird" is in excess of seven (7) years and past AMSAT Satellites have continued to function well beyond a decade. The Satellite, slightly larger than a basketball Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular court, compete with the primary objective of shooting a basketball (approximately in diameter) through the def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KiwiSAT
KiwiSAT, an amateur radio satellite developed by AMSAT-ZL, is to be New Zealand's first satellite. It is being designed and built by New Zealand radio amateurs supported by Massey University (Auckland) and various corporate sponsors. Overview The Satellite was built from scratch because of the impacts of ITAR restrictions/bans on technology sharing and was mothballed for a few years during the period of uncertainty and is now being prepared for flight. The key activity is testing and selecting the best batteries to replace the existing batteries. The design life expectancy of this "bird" is in excess of seven (7) years and past AMSAT Satellites have continued to function well beyond a decade. The Satellite, slightly larger than a basketball Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular court, compete with the primary objective of shooting a basketball (approximately in diameter) through the def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio Satellite
An amateur radio satellite is an artificial satellite built and used by amateur radio operators. It forms part of the Amateur-satellite service. These satellites use amateur radio frequency allocations to facilitate communication between amateur radio stations. Many amateur satellites receive an OSCAR designation, which is an acronym for Orbiting Satellite Carrying Amateur Radio. The designation is assigned by AMSAT, an organization which promotes the development and launch of amateur radio satellites. Because of the prevalence of this designation, amateur radio satellites are often referred to as OSCARs. These satellites can be used free of charge by licensed amateur radio operators for voice ( FM, SSB) and data (AX.25, packet radio, APRS) communications. Currently, over 18 fully operational amateur radio satellites are in orbit. They may be designed to act as repeaters, as linear transponders, and as store and forward digital relays. Amateur radio satellites have helpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massey University
Massey University ( mi, Te Kunenga ki Pūrehuroa) is a university based in Palmerston North, New Zealand, with significant campuses in Albany and Wellington. Massey University has approximately 30,883 students, 13,796 of whom are extramural or distance-learning students, making it New Zealand's second largest university when not counting international students. Research is undertaken on all three campuses, and more than 3,000 international students from over 100 countries study at the university. Massey University is the only university in New Zealand offering degrees in aviation, dispute resolution, veterinary medicine, and nanoscience. Massey's veterinary school is accredited by the American Veterinary Medical Association and is recognised in the United States, Australia, Canada, and Britain. Massey's agriculture programme is the highest-ranked in New Zealand, and 19th in Quacquarelli Symonds' (QS) world university subject rankings. Massey's Bachelor of Aviation (Air Transp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMSAT
AMSAT is a name for amateur radio satellite organizations worldwide, but in particular the Radio Amateur Satellite Corporation (AMSAT) with headquarters at Washington, D.C. AMSAT organizations design, build, arrange launches for, and then operate (command) satellites carrying amateur radio payloads, including the OSCAR series of satellites. Other informally affiliated national organizations exist, such as AMSAT Germany (AMSAT-DL) and AMSAT Japan (JAMSAT). History AMSAT was founded in 1969 in Washington, D.C. to continue the efforts begun by Project OSCAR. Its first project was to coordinate the launch of OSCAR 5, constructed by students at the University of Melbourne. Some design modifications were needed and were made by AMSAT members, and the satellite was successfully launched on 30 January 1970, on a NASA Thor Delta launch vehicle. AMSAT's next launch was AMSAT-OSCAR 6 (AO-6) on 15 October 1972. AO-6 was AMSAT's first long-life satellite, and was built with participan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basketball (ball)
A basketball is a spherical ball used in basketball games. Basketballs usually range in size from very small promotional items that are only a few inches (some centimeters) in diameter to extra large balls nearly in diameter used in training exercises. For example, a youth basketball could be in circumference, while a National Collegiate Athletic Association (NCAA) men's ball would be a maximum of and an NCAA women's ball would be a maximum of . The standard for a basketball in the National Basketball Association (NBA) is in circumference and for the Women's National Basketball Association (WNBA), a maximum circumference of . High school and junior leagues normally use NCAA, NBA or WNBA sized balls. Aside from the court and the baskets, the basketball is the only piece of equipment necessary to play the game of basketball. During the game, the ball must be bounced continuously (dribbling), thrown through the air to other players ( passing) or thrown towards the basket (shooti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio Satellites
An amateur () is generally considered a person who pursues an avocation independent from their source of income. Amateurs and their pursuits are also described as popular, informal, self-taught, user-generated, DIY, and hobbyist. History Historically, the amateur was considered to be the ideal balance between pure intent, open mind, and the interest or passion for a subject. That ideology spanned many different fields of interest. It may have its roots in the ancient Greek philosophy of amateur athletes competing in the Olympics. The ancient Greek citizens spent most of their time in other pursuits, but competed according to their natural talents and abilities. The "gentleman amateur" was a phenomenon among the gentry of Great Britain from the 17th century until the 20th century. With the start of the Age of Reason, with people thinking more about how the world works around them, (see science in the Age of Enlightenment), things like the cabinets of curiosities, and the wri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications In New Zealand
Telecommunications in New Zealand are fairly typical for an industrialised country. Fixed-line broadband and telephone services are largely provided through copper-based networks, although fibre-based services are increasingly common. Spark New Zealand, Vodafone New Zealand, and 2degrees provide most services, although a number of smaller mobile virtual network operators also exist. History The first telegraph opened in New Zealand between the port of Lyttelton and Christchurch on 16 June 1862. The line was constructed along the Lyttelton - Christchurch railway line. The Vogel Era from 1870 saw a major expansion of the telegraph network, including an inter-island cable. Telegraph lines increased from in 1866 to in 1876. The first overseas telegraph cable between Australia and New Zealand began operation on 21 February 1876. The Electric Telegraph Department formed to manage the growing telegraph network was merged with Post Office Department to form the New Zealand Post ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellites Of New Zealand
A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called transponders. Many satellites use a standardized bus to save cost and work, the most popular of which is small CubeSats. Similar satellites can work together as a group, forming constellations. Because of the high launch cost to space, satellites are designed to be as lightweight and robust as possible. Most communication satellites are radio relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Satellites are placed from the surface to orbit by launch vehicles, high enough to avoid orbital decay by the atmosphere. Satellites can then change or maintain the orbit by propuls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
