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  2. List of amateur radio modes - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio_modes

    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.

  3. Radiotelephony procedure - Wikipedia

    en.wikipedia.org/wiki/Radiotelephony_procedure

    Voice procedure communications are intended to maximize clarity of spoken communication and reduce errors in the verbal message by use of an accepted nomenclature. It consists of a signalling protocol such as the use of abbreviated codes like the CB radio ten-code, Q codes in amateur radio and aviation, police codes, etc., and jargon.

  4. Brevity code - Wikipedia

    en.wikipedia.org/wiki/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; List of HTTP status codes; Tactical ...

  5. Amateur radio call signs - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_call_signs

    It refers to a list of saltwater islands worldwide maintained by the Radio Society of Great Britain, which assigns a unique code to an island or group of islands, like EU-005 for Great Britain, OC-001 for Australia etc. [36] [37] IOTA codes are not part of the callsign, although some callsign blocks correspond uniquely to an IOTA code, like EA6 ...

  6. List of amateur radio software - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio_software

    Ham radio repeater finder Repeaterbook: Proprietary: ios, Android: Ham radio repeater finder RFINDER: Proprietary: ios, Android: Ham radio repeater finder CWGet: Proprietary: Windows, Windows Mobile: Morse code decoding MMSSTV: LGPL: Windows: Slow-scan television encoding and decoding QSSTV: GPL: Linux (maybe others) Slow-scan television ...

  7. Q code - Wikipedia

    en.wikipedia.org/wiki/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.

  8. ARRL Numbered Radiogram - Wikipedia

    en.wikipedia.org/wiki/ARRL_Numbered_Radiogram

    An ARRL Numbered Radiogram is a brevity code used in composing ARRL Radiograms during times of radio congestion.. The code is used to transmit standard messages, sometimes with customized text, very quickly by experienced ARRL National Traffic System (NTS) message traffic handlers.

  9. Radio code - Wikipedia

    en.wikipedia.org/wiki/Radio_code

    Q code, initially developed for commercial radiotelegraph communication, later adopted by other radio services, especially amateur radio. Used since circa 1909. QN Signals, published by the ARRL and used by Amateur radio operators to assist in the transmission of ARRL Radiograms in the National Traffic System.