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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. Laser designator - Wikipedia

    en.wikipedia.org/wiki/Laser_designator

    A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively. When a target is marked by a designator, the beam is invisible ...

  4. Stingray use in United States law enforcement - Wikipedia

    en.wikipedia.org/wiki/Stingray_use_in_United...

    The use of stingrays by United States law enforcement is an investigative technique used by both federal and local law enforcement in the United States to obtain information from cell phones by mimicking a cell phone tower. The devices which accomplish this are generically known as IMSI-catchers, but are commonly called stingrays, a brand sold ...

  5. 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 ...

  6. TechCrunch has obtained leaked lists containing the IMEI number or the unique device advertising ID collected from every device compromised by TheTruthSpy prior to and including December 2023.

  7. US lawmakers want to restrict police use of 'Stingray' cell ...

    techcrunch.com/2021/06/17/us-lawmakers-want-to...

    Once connected, they can collect data a device sends out, including its location and subscriber identity key. Cell-site simulators pose a two-fold problem. The first is that they’re surveillance ...

  8. Heliograph - Wikipedia

    en.wikipedia.org/wiki/Heliograph

    Heliograph. A heliograph (from Ancient Greek ἥλιος (hḗlios) 'sun', and γράφειν (gráphein) 'to write') is a solar telegraph [1] system that signals by flashes of sunlight (generally using Morse code) reflected by a mirror. The flashes are produced by momentarily pivoting the mirror, or by interrupting the beam with a shutter. [2]

  9. Google’s accessibility app Lookout can use your phone’s ...

    www.engadget.com/googles-accessibility-app...

    It has rolled out a new version of the Lookout app, which can read text and even lengthy documents out loud for people with low vision or blindness. The app can also read food labels, recognize ...

  10. Google announces new scam detection tools that provide real ...

    www.engadget.com/google-announces-new-scam...

    Everything happens on the device, so it stays private. This feature isn’t coming to Android 15 right away and the company says it’ll share more details later in the year. We do know that ...

  11. ANSI device numbers - Wikipedia

    en.wikipedia.org/wiki/ANSI_device_numbers

    In Electrical Power Systems and Industrial Automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI/ IEEE Standard C37.2 "Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations" .