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  2. List of TDRS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_TDRS_satellites

    Location of TDRS as of 26 May 2020 Location of TDRS as of March 2019. This is a list of Tracking and Data Relay Satellites.TDRS spacecraft are all in geostationary orbit and are operated by the United States National Aeronautics and Space Administration, and are used for communication between NASA facilities and spacecraft, [1] including the Space Shuttle, Hubble Space Telescope, and ...

  3. Tracking and Data Relay Satellite System - Wikipedia

    en.wikipedia.org/wiki/Tracking_and_Data_Relay...

    TDRS Program Logo Location of TDRS as of March 2019 An unflown TDRS on display at the Steven F. Udvar-Hazy Center in Chantilly, Virginia.. The U.S. Tracking and Data Relay Satellite System (TDRSS, pronounced "T-driss") is a network of American communications satellites (each called a tracking and data relay satellite, TDRS) and ground stations used by NASA for space communications.

  4. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    IEEE 200-1975 or "Standard Reference Designations for Electrical and Electronics Parts and Equipments" is a standard that was used to define referencing naming systems for collections of electronic equipment. IEEE 200 was ratified in 1975. The IEEE renewed the standard in the 1990s, but withdrew it from active support shortly thereafter.

  5. ZILOG Announces New "ZAURA™" RF AC Power-Switching Relay ...

    www.aol.com/news/2013-02-14-zilog-announces-new...

    This AC Power Switching Relay with ZAURA Control reference design features a90-240V AC RMS input voltage range, up to 10 amps of load current, less than 2mA of standby current at 120V AC when in ...

  6. Numerical relay - Wikipedia

    en.wikipedia.org/wiki/Numerical_relay

    The relay analyzes the resultant A/D converter outputs to determine if action is required under its protection algorithm(s). Protection algorithms are a set of logic equations in part designed by the protection engineer, and in part designed by the relay manufacturer. The relay is capable of applying advanced logic.

  7. The Best (and Worst) Places to Live on Minimum Wage in America

    www.aol.com/finance/best-worst-places-live...

    And a minimum wage worker will pay a hefty price of 131% of their income for rent. It would take 4.22 people to easily pay for a one-bedroom apartment. Art Wager/istockphoto

  8. Brothers jailed for US home repairs scam targeting the elderly

    www.aol.com/brothers-jailed-us-home-repairs...

    Two County Fermanagh brothers who scammed elderly homeowners in the United States out of hundreds of thousands of dollars have been sentenced to 18 months in a US prison and face likely deportation.

  9. Protective relay - Wikipedia

    en.wikipedia.org/wiki/Protective_relay

    Electromechanical protective relays operate by either magnetic attraction, or magnetic induction. [9]: 14 Unlike switching type electromechanical relays with fixed and usually ill-defined operating voltage thresholds and operating times, protective relays have well-established, selectable, and adjustable time and current (or other operating parameter) operating characteristics.

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