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  2. Seismological Society of America - Wikipedia

    en.wikipedia.org/wiki/Seismological_Society_of...

    The Seismological Society of America publishes the Bulletin of the Seismological Society of America (BSSA), a journal of research in earthquake seismology and related disciplines since 1911, and Seismological Research Letters (SRL), which serves as a forum for informal communication among seismologists, as well as between seismologists and those non-specialists interested in seismology and ...

  3. Bulletin of the Seismological Society of America - Wikipedia

    en.wikipedia.org/wiki/Bulletin_of_the...

    Bulletin of the Seismological Society of America (BSSA) is a bimonthly peer reviewed scientific journal published by the Seismological Society of America. The editor-in-chief is Thomas Pratt (U. S. Geological Survey). The journal covers seismology and related disciplines.

  4. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    The Medical Signal Code [13] (incorporated in the International Code of Signals since 1930) is a means of providing assistance when medical personnel are not present. Plain language is generally preferred in such cases (presumably via radiotelephone), but the various codes provide a succinct method of communicating to a doctor the nature of the ...

  5. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Phrase Word Brevity Code Phrase Word English Meaning APCO TEN CODE Use Caution Caution: dangerous condition is suspected to exist. 10-0 Unreadable Radio signal is too weak to receive. 10-1 Out of Service Unit, vehicle or person is not working 10-7 In Service Unit, vehicle or person is working but not necessarily "available" or "on radio." 10-8

  6. Signal operating instructions - Wikipedia

    en.wikipedia.org/wiki/Signal_operating_instructions

    They include current and up-to-date information covering radio call signs and frequencies, a telephone directory, code-words (for rudimentary encryption), and visual and sound signals. A designated battalion signal officer prepares the battalion SOI in conformance with the SOI of higher headquarters. [2] During operations, SOI are changed daily.

  7. Brevity code - Wikipedia

    en.wikipedia.org/wiki/Brevity_code

    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 ...

  8. Plain language radio checks - Wikipedia

    en.wikipedia.org/wiki/Plain_language_radio_checks

    A plain-language radio check is the means of requesting and giving a signal strength and readability report for radiotelephony (voice) communications, and is the direct equivalent to the QSA and QRK code used to give the same report in radiotelegraph communications.

  9. 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 .