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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.
QRM may refer to: Amateur radio Q code for "I have interference" Quick Response Manufacturing; US Quevilly-Rouen Métropole (QRM), a French football club;
Morse code is called the original digital mode. Radio telegraphy, designed for machine-to-machine communication is the direct on / off keying of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying or ASK, may be considered to be an amplitude modulated mode of communications, and is rightfully considered the first digital data mode.
Today, amateur radio operators still use codes 73 and 88 regularly, and -30-is used in journalism, as it was shorthand for "No more - the end". The Young Ladies Radio League uses code 33 to mean "love sealed with friendship and mutual respect between one YL [young lady] and another YL" [3] or simply "hugs." A once-used but unofficial code 99 ...
They provide specific abbreviations for concepts related to aviation, shipping, RTTY, radiotelegraph, and amateur radio. [38] In radiotelegraph operation, a Q code is often shorter, [39] and provides codes standardized by meaning in all languages – essential for international shortwave radio communications.
An amateur radio contact, more commonly referred to as simply a "contact", is an exchange of information between two amateur radio stations. The exchange usually consists of an initial call, a response by another amateur radio operator at an amateur radio station, and a signal report. A contact is often referred to by the Q code QSO. It is ...
Morse code, is commonly used in Amateur radio. Morse code abbreviations are a type of brevity code. Procedure words used in radiotelephony procedure, are a type of radio code. Spelling alphabets, including the ICAO spelling alphabet, are commonly used in communication over radios and telephones.
The QSK code is one of the earliest signal reporting formats and is a part of the Q code used for commercial radiotelegraph communication, appearing as one of the twelve Q Codes listed in the 1912 International Radiotelegraph Convention Regulations, and was later adopted by other radio services, especially amateur radio. The QSA code was ...