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  1. en.wikipedia.org › wiki › Q_codeQ code - Wikipedia

    Q code. This is one of a set of articles on telegraphy. 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.

  2. en.wikipedia.org › wiki › ACP_131ACP 131 - Wikipedia

    ACP-131 [1] is the controlling publication for the listing of Q codes and Z codes. It is published and revised from time to time by the Combined Communications Electronics Board (CCEB) countries: Australia, New Zealand, Canada, United Kingdom, and United States. When the meanings of the codes contained in ACP-131 are translated into various ...

  3. The Nissan Serena ( Japanese: 日産・セレナ, Hepburn: Nissan Serena) is a minivan manufactured by Nissan, joining the slightly larger Vanette. The car was engineered by Nissan's Aichi Manufacturing Division and launched in 1991 as a compact passenger van, and it grew larger with each generation over the years. Earlier versions were front ...

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  5. en.wikipedia.org › wiki › QR_codeQR code - Wikipedia

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

  6. The Internet Group Management Protocol ( IGMP) is a communications protocol used by hosts and adjacent routers on IPv4 networks to establish multicast group memberships. IGMP is an integral part of IP multicast and allows the network to direct multicast transmissions only to hosts that have requested them.

  7. What links here Related changes Upload file Special pages Permanent link Page information Cite this page Get shortened URL Download QR code Arras – Roclincourt Airfield (French: Aérodrome d'Arras - Roclincourt) (ICAO: LFQD) is a recreational aerodrome located in Roclincourt, 4 km (2.2 NM) northeast of Arras, both communes of the Pas-de-Calais department in the Hauts-de-France region of France.

  8. In the European Union, the Qualified Person Responsible For Pharmacovigilance ( QPPV) is an individual, usually an employee of a pharmaceutical company, who is personally responsible for the safety of the human pharmaceutical products marketed by that company in the EU. This function was established in 2004 by article 23 of regulation (EC) No ...

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