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Operating Signals
Operating signals are a type of brevity code used in operational communication among radio and telegraph operators. For example: * Prosigns for Morse code * 92 Code: telegraph brevity codes * Q code: initially developed for commercial radiotelegraph communication and adopted by other radio services * QN Signals: published by the ARRL and used in Amateur radio * R code and S Code: published by the British Post Office for coastal wireless stations and ships * X code: used by European military services in wireless telegraphy * Z code: used in early radiotelegraph communication See also * Brevity code * SINPO code - code used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners * R-S-T system- information about the quality of a radio signal being received. Used by amateur radio operators, shortwave listeners. * Morse code abbreviations * Telegraphese Telegram style, telegraph style, telegraphic style, or telegraphese is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brevity Code
Brevity codes are used in amateur radio, maritime, aviation and military communications. The codes are designed to convey complex information with a few words or codes. Some terms are classified to the public. List of brevity codes * ACP-131 Allied military brevity codes * ARRL Numbered Radiogram * Commercial codes such as the '' Acme Commodity and Phrase Code'', the ''ABC Telegraphic Code'', ''Bentley's Complete Phrase Code'', and ''Unicode'' * Fox (code word) * Multiservice tactical brevity code used by various military forces. The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words, when brevity is required but security is not * Ten-code, North American police brevity codes, including such notable ones as 10-4 * Phillips Code * NOTAM Code * Wire signal, Morse Code abbreviation, also known as 92 Code. Appears in informal language-independent HAM conversations * World War II Allied names for Japanese aircraft See als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosigns For Morse Code
Procedural signs or prosigns are shorthand signals used in Morse code radio telegraphy procedure, for the purpose of simplifying and standardizing radio communication protocol. They are separate from Morse code abbreviations, which consist mainly of brevity codes that convey messages to other parties with greater speed and accuracy. In general prosigns are just standardised parts of short form radio protocol, and can include any abbreviation. An example would be K for "okay, heard you, continue". In a more limited role the term refers to something akin to that of the nonprinting control characters in teleprinter and computer character sets, such as Baudot or ASCII. Different from abbreviations, those are universally recognizable across language barriers as distinct and well-defined symbols. At the coding level, prosigns admit any form the Morse code can take, unlike abbreviations which have to follow letter form. Many of them are longer than typical characters and are rendered wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wire Signal
A wire signal is a brevity code used by telegraphers to save time and cost when sending long messages. The most well-known of these was the 92 Code adopted by Western Union in 1859. The reason for this adoption was to reduce bandwidth usage over the telegraph lines and speed transmissions by utilizing a numerical code system for various frequently used phrases. 92 Code Several of the codes are taken from ''The Telegraph Instructor'' by G.M. Dodge. Dodge notes: :Other numerical signals are used by different railroads for different purposes, for instance, the signal “47” upon some railroads means “display signals”; while the signal “48” means “signals are displayed”. The numerals “9” and “12” are frequently used for “correct”. Other numerals are used for the different officials’ messages, agents’ messages, etc. Codes that are not listed in the 1901 edition of Dodge are marked with an asterisk (*). In the above list, the numbers 19 and 31 refer t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Q Code
The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio. To distinguish the use of a Q-code transmitted as a question from the same Q-code transmitted as a statement, operators either prefixed it with the military network question marker "" (dit dit dah dit dah) or suffixed it with the standard Morse question mark (dit dit dah dah dit dit). Although Q-codes were created when radio used Morse code exclusively, they continued to be employed after the introduction of voice transmissions. To avoid confusion, transmitter call signs are restricted; no country is ever issued an ITU prefix starting with "Q". Codes in the range QAA–QNZ are reserved for aeronautical use; QOA–QQZ for maritime use and QRA–QUZ for all services. "Q" has no official meaning, but it is sometimes assign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QN Signals
The QN Signals are Morse code operating signals that were introduced for Amateur radio net operation in 1939 on the Michigan QMN Net to lighten the burdens of net control operators. Originally created by a committee of the Detroit Amateur Radio Association led by Ralph Thetreat, W8FX. Ev Battey W1UE (W4IA-SK), then ARRL assistant communications manager, later printed them in ''QST''. The QN Signals are defined in ARRL document FSD-218 and listed in the ''ARRL Operating Manual''. Although these codes are within the Aeronautical Code signals range (QAA–QNZ) and thus conflict with official international Q signals beginning with QN, the ARRL informally queried FCC's legal branch about the conflict. The opinion then of the FCC was that "no difficulty was as long as we continued to use them only in amateur nets." ARRL QN Signals For CW Net Use :* QN-codes marked with an asterisk (*) are only for use by the Net Control Station. See also * ACP-131 * ARRL * Brevity code * Morse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARRL
The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization, and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut. The ARRL represents the interests of amateur radio operators before federal regulatory bodies, provides technical advice and assistance to amateur radio enthusiasts, supports a number of educational programs and sponsors emergency communications service throughout the country. The ARRL has approximately 161,000 members. In addition to members in the US, the organization claims over 7,000 members in other countries. The ARRL publishes many books and a monthly membership journal called ''QST''. The ARRL is the primary representative organization of amateur radio operators to the US government. It performs this function by lobbying the US Congress and the Federal Communications Commission. The ARRL is also the internati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and '' amateur-satellite service'') is established by the International Telecommunication Union (ITU) through the Radio Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station licenses with a unique identifying call sign, which mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R Code
R is a programming language for statistical computing and graphics supported by the R Core Team and the R Foundation for Statistical Computing. Created by statisticians Ross Ihaka and Robert Gentleman, R is used among data miners, bioinformaticians and statisticians for data analysis and developing statistical software. Users have created packages to augment the functions of the R language. According to user surveys and studies of scholarly literature databases, R is one of the most commonly used programming languages used in data mining. R ranks 12th in the TIOBE index, a measure of programming language popularity, in which the language peaked in 8th place in August 2020. The official R software environment is an open-source free software environment within the GNU package, available under the GNU General Public License. It is written primarily in C, Fortran, and R itself (partially self-hosting). Precompiled executables are provided for various operating systems. R has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Z Code
Z (or z) is the 26th and last letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its usual names in English are ''zed'' () and ''zee'' (), with an occasional archaic variant ''izzard'' ()."Z", ''Oxford English Dictionary,'' 2nd edition (1989); ''Merriam-Webster's Third New International Dictionary of the English Language, Unabridged'' (1993); "zee", ''op. cit''. Name and pronunciation In most English-speaking countries, including Australia, Canada, India, Ireland, New Zealand and the United Kingdom, the letter's name is ''zed'' , reflecting its derivation from the Greek ''zeta'' (this dates to Latin, which borrowed Y and Z from Greek), but in American English its name is ''zee'' , analogous to the names for B, C, D, etc., and deriving from a late 17th-century English dialectal form. Another English dialectal form is ''izzard'' . This dates from the mid-18th century and probably derives fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brevity Code
Brevity codes are used in amateur radio, maritime, aviation and military communications. The codes are designed to convey complex information with a few words or codes. Some terms are classified to the public. List of brevity codes * ACP-131 Allied military brevity codes * ARRL Numbered Radiogram * Commercial codes such as the '' Acme Commodity and Phrase Code'', the ''ABC Telegraphic Code'', ''Bentley's Complete Phrase Code'', and ''Unicode'' * Fox (code word) * Multiservice tactical brevity code used by various military forces. The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words, when brevity is required but security is not * Ten-code, North American police brevity codes, including such notable ones as 10-4 * Phillips Code * NOTAM Code * Wire signal, Morse Code abbreviation, also known as 92 Code. Appears in informal language-independent HAM conversations * World War II Allied names for Japanese aircraft See als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SINPO Code
SINPO, an acronym for Signal, Interference, Noise, Propagation, and Overall, is a Signal Reporting Code used to describe the quality of broadcast and radiotelegraph transmissions. SINPFEMO, an acronym for Signal, Interference, Noise, Propagation, frequency of Fading, dEpth, Modulation, and Overall is used to describe the quality of radiotelephony transmissions. SINPFEMO code consists of the SINPO code plus the addition of three letters to describe additional features of radiotelephony transmissions. These codes are defined by ''Recommendation ITU-R Sm.1135, SINPO and SINPFEMO codes''. SINPO code is most frequently used in reception reports written by shortwave listeners. Each letter of the code stands for a specific factor of the signal, and each item is graded on a 1 to 5 scale (where 1 stands for nearly undetectable/severe/unusable and 5 for excellent/nil/extremely strong). The code originated with the CCIR (a predecessor to the ITU-R) in 1951, and was widely used by BBC s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R-S-T System
The R-S-T system is used by amateur radio operators, shortwave listening, shortwave listeners, and other radio hobbyists to exchange information about the quality of a radio signal being received. The code is a three digit number, with one digit each for conveying an assessment of the signal's readability, strength, and tone. The code was developed in 1934 by Amateur radio operator Arthur W. Braaten, W2BSR, and was similar to that codified in the ITU Radio Regulations, Cairo, 1938. Readability The R stands for "Readability". Readability is a qualitative assessment of how easy or difficult it is to correctly copy the information being sent during the transmission (radio), transmission. In a Morse code telegraphy transmission, readability refers to how easy or difficult it is to distinguish each of the characters in the text of the message being sent; in a telephony, voice transmission, readability refers to how easy or difficult it is for each spoken word to be understood correc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
