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Larkspur Radio System
Larkspur was the retrospectively adopted name of a tactical radio system used by the British Army. Its development started in the late 1940s with the first equipment being issued in the mid-1950s. It remained in service until replaced by Clansman in the late-1970s although some elements of Larkspur were still in service well into the 1980s. It was widely exported to British Commonwealth armies and other friendly nations. The origin of Larkspur was a post-war project to move tactical short-range radio communications in the forward battle area from HF using amplitude modulation to low-band VHF using frequency modulation. This followed the similar move by the US Army in the latter part of WWII which had demonstrated significant advantages. Where the use of VHF was not practical, HF sets using narrow band phase modulation (NBPhM) were developed as the only practical method at the time of obtaining some performance improvement over the use of AM especially at night. The range of set ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larkspur Key
Larkspur may refer to: Botany * ''Consolida'', a genus of 40 annual flowering plants * ''Delphinium'', a genus of 300 perennial flowering plants Locations * Larkspur, Alberta, Canada * Larkspur, Edmonton, Alberta, Canada * Larkspur, California, United States **Larkspur Landing, the city's ferry terminal * Larkspur, Colorado, United States * Larkspur, Virginia, United States * Larkspur, Faisalabad, Pakistan Other uses * Larkspur (horse), the winner of the 1962 Epsom Derby * ''Larkspur'', a RORO ferry built in Germany, launched in 1976 * Larkspur Press, an American letter-press publisher * Larkspur radio system Larkspur was the retrospectively adopted name of a tactical radio system used by the British Army. Its development started in the late 1940s with the first equipment being issued in the mid-1950s. It remained in service until replaced by Clansman ..., used by the British Army See also * {{disambiguation, plant, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Set No
Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio ''wireless technology'' include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MEL Equipment
MEL Equipment was a British manufacturer of radar, avionics and military radio equipment based in West Sussex. History The company was formed as Radio Transmission Equipment in March 1935 in south London. Later it was fully acquired by Philips and renamed Mullard Equipment Ltd. It moved to Crawley in 1961. In the 1970s, the company was employing around 2,250. Products * Larkspur radio equipment * Clansman radio equipment * EKCO E390/564 airborne weather radar (for Concorde) * Microwave Airborne Digital Guidance Equipment * Precision approach radar * Radar transponders Products currently made by the Thales site * Cerberus Mission System for Royal Navy helicopters * Searchwater radar See also * Hensoldt * Thales Training & Simulation * Mullard Mullard Limited was a British manufacturer of electronic components. The Mullard Radio Valve Co. Ltd. of Southfields, London, was founded in 1920 by Captain Stanley R. Mullard, who had previously designed thermionic valve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EKCO
EKCO (from Eric Kirkham Cole Limited) was a British electronics company producing radio and television sets from 1924 until 1960. Expanding into plastic production for its own use, Ekco Plastics produced both radio cases and later domestic plastic products; the plastics company became Lin Pac Mouldings Ltd. Early history The company's founder Eric Kirkham Cole was born on 4 July 1901 at Prittlewell, Southend-on-Sea, Essex, and was educated at Southend Day Technical School, followed by a three-year apprenticeship. Cole and his future wife Muriel Bradshaw started out making radio sets in 1924.Oxford Dictionary of National Biography: Cole, Eric Kirkham by Rowland F. Pocock William Streatfield Verrells, a schoolmaster and freelance journalist from Southend-on-Sea, wrote an article in a local newspaper asking if it was possible to power a radio set from the mains electricity supply rather than batteries. Cole saw a possible business opportunity and set about building his battery e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plessey
The Plessey Company plc was a British electronics, defence and telecommunications company. It originated in 1917, growing and diversifying into electronics. It expanded after World War II by acquisition of companies and formed overseas companies. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index. In 1989, it was taken over by a consortium formed by GEC and Siemens which split the assets of the Plessey group. The majority of Plessey's defence assets were amalgamated into BAE Systems in 1999 when British Aerospace merged with the defence arm of GEC, Marconi Electronic Systems (MES). A small portion of the defence market, mostly embedded electronic systems and circuitcards remained with GE, formerly GE Fanuc and GE Intelligent Platforms (GE-IP) and now Abaco Systems based in Huntsville, Alabama, and in Towcester, Northamptonshire. The bulk of Plessey's telecommunications assets were acquired by Ericsson through its 2005 acquisition of Marconi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Signals
The Royal Corps of Signals (often simply known as the Royal Signals – abbreviated to R SIGNALS or R SIGS) is one of the combat support arms of the British Army. Signals units are among the first into action, providing the battlefield communications and information systems essential to all operations. Royal Signals units provide the full telecommunications infrastructure for the Army wherever they operate in the world. The Corps has its own engineers, logistics experts and systems operators to run radio and area networks in the field. It is responsible for installing, maintaining and operating all types of telecommunications equipment and information systems, providing command support to commanders and their headquarters, and conducting electronic warfare against enemy communications. History Origins In 1870, 'C' Telegraph Troop, Royal Engineers, was founded under Captain Montague Lambert. The Troop was the first formal professional body of signallers in the British Army and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/PRC-10
The AN/PRC-10 is an American VHF portable radio transceiver, introduced in 1951 as a replacement for the wartime SCR-300 set. The AN/PRC-8 and AN/PRC-9 sets are basically the same but cover lower frequency bands. It remained in service with the American military until the mid 1960s when it was replaced by the transistorized AN/PRC-25 set. Technical specifications * FM, superheterodyne radio transceiver *Frequency coverage: **AN/PRC-10: 38.0 to 54.9 MHz VHF version used by infantry **AN/PRC-9: 27.0 to 38.9 MHz HF/VHF version used by artillery **AN/PRC-8: 20.0 to 27.9 MHz HF band version used by armoured units *Tuning: Single calibrated dial mechanically tunes both receiver and transmitter simultaneously via ganged variable capacitors *Receiver sensitivity: 0.7 μV *Receiver selectivity: 80 kHz @ −6 dB *Intermediate frequency: 4.3 MHz *Transmitter RF output: 0.9 watts *Circuitry: 16 vacuum tubes *Dimensions: 10.4" × 3" × 18.5" inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Artillery
The Royal Regiment of Artillery, commonly referred to as the Royal Artillery (RA) and colloquially known as "The Gunners", is one of two regiments that make up the artillery arm of the British Army. The Royal Regiment of Artillery comprises thirteen Regular Army regiments, the King's Troop Royal Horse Artillery and five Army Reserve regiments. History Formation to 1799 Artillery was used by the English army as early as the Battle of Crécy in 1346, while Henry VIII established it as a semi-permanent function in the 16th century. Until the early 18th century, the majority of British regiments were raised for specific campaigns and disbanded on completion. An exception were gunners based at the Tower of London, Portsmouth and other forts around Britain, who were controlled by the Ordnance Office and stored and maintained equipment and provided personnel for field artillery 'traynes' that were organised as needed. These personnel, responsible in peacetime for maintaining the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Army
The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurkhas, and 28,330 volunteer reserve personnel. The modern British Army traces back to 1707, with antecedents in the English Army and Scots Army that were created during the Restoration in 1660. The term ''British Army'' was adopted in 1707 after the Acts of Union between England and Scotland. Members of the British Army swear allegiance to the monarch as their commander-in-chief, but the Bill of Rights of 1689 and Claim of Right Act 1689 require parliamentary consent for the Crown to maintain a peacetime standing army. Therefore, Parliament approves the army by passing an Armed Forces Act at least once every five years. The army is administered by the Ministry of Defence and commanded by the Chief of the General Staff. The Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Armoured Corps
The Royal Armoured Corps is the component of the British Army, that together with the Household Cavalry provides its armour capability, with vehicles such as the Challenger 2 Tank and the Scimitar Reconnaissance Vehicle. It includes most of the Army's armoured regiments, both the Royal Tank Regiment and those converted from old horse cavalry regiments.Forty p. 63. Today it comprises twelve regiments, eight regular and four reserve. Although the Household Cavalry Regiment (the Life Guards and the Blues and Royals) provide an armoured regiment, they are not part of the RAC. History The RAC was created on 4 April 1939, just before World War II started, by combining regiments from the cavalry of the line which had mechanised with the Royal Tank Corps (renamed Royal Tank Regiment). As the war went on and other regular cavalry and Territorial Army Yeomanry units became mechanised, the corps was enlarged. A significant number of infantry battalions also converted to the armoured r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christchurch, Dorset
Christchurch () is a town and civil parish in Dorset on the south coast of England. The town had a population of 31,372 in 2021. For the borough the population was 48,368. It adjoins Bournemouth to the west, with the New Forest to the east. Part of the Historic counties of England, historic county of Hampshire, Christchurch was a Borough status in the United Kingdom, borough within the administrative county of Dorset from 1974 until 2019, when it became part of the new Bournemouth, Christchurch and Poole unitary authority. Founded in the seventh century at the confluence of the rivers River Avon (Hampshire), Avon and River Stour, Dorset, Stour which flow into Christchurch Harbour, the town was originally named Twynham but became known as Christchurch following the construction of the Christchurch Priory, priory in 1094. The town developed into an important trading port, and was Burh, fortified in the 9th century. Further defences were added in the 12th century with the constructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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