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  2. ANSI device numbers - Wikipedia

    en.wikipedia.org/wiki/ANSI_device_numbers

    22 – Equalizer Circuit Breaker. 23 – Temperature control device, Heater. 24 – Volts per Hertz Relay. 25 – Synchronizing or Synchronism-check Device. 26 – Apparatus Thermal Device, Temperature Switch. 27 – Undervoltage Relay. 27P - Phase Undervoltage. 27S - DC Undervoltage Relay. 27TN - Third Harmonic Neutral Undervoltage.

  3. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  4. List of ray tracing software - Wikipedia

    en.wikipedia.org/wiki/List_of_ray_tracing_software

    List of ray tracing software. Ray tracing is a technique that can generate near photo-realistic computer images. A wide range of free software and commercial software is available for producing these images. This article lists notable ray-tracing software. Software.

  5. The best noise-canceling headphones for 2024 - Engadget

    www.engadget.com/best-noise-canceling-headphones...

    Read our full review of the Sony WH-1000XM5. Sony opted for two audio chips on its 1000XM5 headphones, adding a V1 Integrated Processor alongside its QN1 HD Noise Canceling Processor chip to ...

  6. IATA delay codes - Wikipedia

    en.wikipedia.org/wiki/IATA_delay_codes

    In the AHM 780 specification, the two-character numeric-only codes are sent in the DL and EDL elements along with the time assigned to each code (e.g. DL31/62/0005/0015 showing reason 31 for 5 mins and reason 62 for 15 minutes), and the three-character alphanumeric codes are sent in the DLA element (e.g. DLA31C/62A// showing subreason C for ...

  7. Brevity code - Wikipedia

    en.wikipedia.org/wiki/Brevity_code

    Brevity codes are used in amateur radio, maritime, aviation and military communications. They are designed to convey complex information with a few words or codes. Some are classified from the public. List. ACP-131 Allied military brevity codes; ARRL Numbered Radiogram

  8. Resin identification code - Wikipedia

    en.wikipedia.org/wiki/Resin_identification_code

    Resin identification code. The ASTM International Resin Identification Coding System, often abbreviated RIC, is a set of symbols appearing on plastic products that identify the plastic resin out of which the product is made. [1] It was developed in 1988 by the Society of the Plastics Industry (now the Plastics Industry Association) in the ...

  9. List of aircraft type designators - Wikipedia

    en.wikipedia.org/wiki/List_of_aircraft_type...

    An aircraft type designator is a two-, three- or four-character alphanumeric code designating every aircraft type (and some sub-types) that may appear in flight planning. These codes are defined by both the International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA).

  10. ISO 4217 - Wikipedia

    en.wikipedia.org/wiki/ISO_4217

    For example, USD (United States dollar) has numeric code 840 which is also the ISO 3166-1 code for "US" (United States). List of ISO 4217 currency codes Active codes (list one) The following is a list of active codes of official ISO 4217 currency names as of 1 April 2022. In the standard the values are called "alphabetic code", "numeric code ...

  11. List of dialling codes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_dialling_codes_in...

    01869 — Bicester, Oxfordshire – – Was originally 0095 (OX5) until changed to 0869 in 1968. 01870 — Isle of Benbecula, Outer Hebrides, Uist (US0) – – Was originally 0047 (OH) until changed to 0870 in 1968. 01871 — Castlebay, Outer Hebrides – – Was originally 0047 (OH7) until changed to 0871 in 1968.