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  2. Air traffic control radar beacon system - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control_radar...

    The transponder has a small required set of controls and is simple to operate. It has a method to enter the four-digit transponder code, also known as a beacon code or squawk code, and a control to transmit an ident, which is done at the controller's request (see SPI pulse below). Transponders typically have 4 operating modes: Off, Standby, On ...

  3. Immobiliser - Wikipedia

    en.wikipedia.org/wiki/Immobiliser

    Immobiliser sign. An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key ( transponder or smart key) is present. This prevents the vehicle from being "hot wired" after entry has been achieved and thus reduces motor vehicle theft.

  4. Traffic collision avoidance system - Wikipedia

    en.wikipedia.org/wiki/Traffic_collision...

    A traffic alert and collision avoidance system ( TCAS, pronounced / tiːkæs /; TEE-kas) is an aircraft collision avoidance system designed to reduce the incidence of mid-air collision (MAC) between aircraft. It monitors the airspace around an aircraft for other aircraft equipped with a corresponding active transponder, independent of air ...

  5. Texas state representative wants transponders in all cars

    www.engadget.com/2005-04-07-texas-state...

    This just goes to prove that one bit of sanity cannot go unanswered. Representative Larry Phillips has introduced a bill in the Texas House of Representatives which would require that all state ...

  6. Amazon's redesigned Echo Auto will better integrate with your ...

    www.engadget.com/amazons-next-echo-auto-will...

    What's more, with help from Amazon's cloud the $55 Echo Auto will also be able to alert the driver when their pre-ordered Whole Foods grocery order is ready for pickup will also summon a tow truck ...

  7. Good to Go (toll collection system) - Wikipedia

    en.wikipedia.org/wiki/Good_to_Go_(toll...

    Good to Go, stylized as GoodToGo!, is the electronic toll collection program managed by the Washington State Department of Transportation on all current toll and future projects in the U.S. state of Washington. Regular Good to Go customers may set up an account from which tolls are automically deducted. Vehicles that are not linked to an ...

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

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

    This $30 device defeats almost any keyless car or garage door. steve dent. Reporter. Updated Mon, Aug 10, 2015 · 2 min read. You probably don't think about thieves when you unlock your car, but ...

  9. Identification friend or foe - Wikipedia

    en.wikipedia.org/wiki/Identification_friend_or_foe

    Identification, friend or foe ( IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]