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  2. 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 ...

  3. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Country calling codes, country dial-in codes, international subscriber dialing ( ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  4. List of ISO 3166 country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

    The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted.

  5. HD 101: Discrete IR codes - Engadget

    www.engadget.com/2009-02-05-hd-101-discrete-ir...

    This is where discrete IR commands come in. The remote knows the TV should be on, so it can send a command that it knows will always turn the TV on, even when the TV is already on, so the command ...

  6. Amazon Echo Show now scans barcodes for your grocery list

    www.engadget.com/2020-02-01-amazon-echo-show...

    Amazon. Amazon has launched a feature for newer Echo Show that lets you add items to Alexa's built-in shopping list by scanning their barcodes. Sure, it's pretty easy to add stuff to your grocery ...

  7. This $30 device defeats almost any keyless car or garage door

    www.engadget.com/2015-08-10-hacking-device-lets...

    Car makers came up with "rolling code" after thieves figured out how to wirelessly steal codes from early keyless devices. The system works by changing the passkey every time you use a fob ...

  8. Directed attention fatigue - Wikipedia

    en.wikipedia.org/wiki/Directed_attention_fatigue

    Signs of Directed Attention Fatigue include temporarily feeling unusually distractible, impatient, forgetful, or cranky when there is no associated illness. In more severe forms, it can lead to bad judgment, apathy, or accidents, and can contribute to increased stress levels.

  9. A new technique can detect newer 4G 'stingray' cell phone ...

    techcrunch.com/2020/08/05/crocodile-hunter-4g...

    Newer cell site simulators, called “Hailstorm” devices, take advantage of similar flaws in 4G that let police snoop on newer phones and devices. Some phone apps claim they can detect stingrays ...

  10. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    Signals can be sent by flaghoist, signal lamp ("blinker"), flag semaphore, radiotelegraphy, and radiotelephony. The International Code is the most recent evolution of a wide variety of maritime flag signalling systems.

  11. eyeQ takes a fresh look at video call eye contact | TechCrunch

    techcrunch.com/2024/01/11/eyeq-eye-contact-ces

    The device is expected to ship in June 2024 and is compatible with all main video platforms. It comes in three sizes to fit any screen and includes an Ultra HD 4K camera, a digital microphone and ...