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  2. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    LibreOffice. Free ( Mozilla Public License) an Office suite; allows to export (and import, with accuracy limitations) PDF files. Microsoft Word 2013. Proprietary. Desktop software. The 2013 edition of Office allows PDF files to be converted into a format that can be edited. Nitro PDF Reader.

  3. Link budget - Wikipedia

    en.wikipedia.org/wiki/Link_budget

    Link budget. A link budget is an accounting of all of the power gains and losses that a communication signal experiences in a telecommunication system; from a transmitter, through a communication medium such as radio waves, cable, waveguide, or optical fiber, to the receiver. It is an equation giving the received power from the transmitter ...

  4. List of video connectors - Wikipedia

    en.wikipedia.org/wiki/List_of_video_connectors

    Single-link DVI-D male plug. Dual-link DVI-D male plug. Digital Visual Interface (DVI). Five variants are: DVI-I single link, DVI-I dual link, DVI-D single link, DVI-D dual link, and DVI-A. Male Mini-DVI plug on top of a 12-inch PowerBook G4; female port is second from left. Mini-DVI: VGA, DVI, television. Apple Computer alternative to Mini-VGA.

  5. Block upconverter - Wikipedia

    en.wikipedia.org/wiki/Block_upconverter

    Techniques. v. t. e. A block upconverter ( BUC) is used in the transmission ( uplink) of satellite signals. It converts a band of frequencies from a lower frequency to a higher frequency. Modern BUCs convert from the L band to K u band, C band and K a band. Older BUCs convert from a 70 MHz intermediate frequency (IF) to K u band or C band.

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  7. Calibre (software) - Wikipedia

    en.wikipedia.org/wiki/Calibre_(software)

    Calibre is a cross-platform free and open-source suite of e-book software. Calibre supports organizing existing e-books into virtual libraries, displaying, editing, creating and converting e-books, as well as syncing e-books with a variety of e-readers. Editing books is supported for EPUB and AZW3 formats. Books in other formats like MOBI must ...

  8. Link Trainer - Wikipedia

    en.wikipedia.org/wiki/Link_Trainer

    Link Trainer at Freeman Field, Seymour, Indiana. Freeman Field was a US Army Air Force field in World War II. Link and his company had struggled through the Depression years, but after gaining Air Corps interest the business expanded rapidly and during World War II, the AN-T-18 Basic Instrument Trainer, known to tens of thousands of fledgling pilots as the "Blue Box" (although it was painted ...

  9. Boost converter - Wikipedia

    en.wikipedia.org/wiki/Boost_converter

    A boost converter or step-up converter is a DC-to-DC converter that increases voltage, while decreasing current, from its input ( supply) to its output ( load ). It is a class of switched-mode power supply (SMPS) containing at least two semiconductors, a diode and a transistor, and at least one energy storage element: a capacitor, inductor, or ...