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  2. Serial digital interface - Wikipedia

    en.wikipedia.org/wiki/Serial_digital_interface

    The various serial digital interface standards all use (one or more) coaxial cables with BNC connectors, with a nominal impedance of 75 ohms. This is the same type of cable used in analog composite video setups, which potentially makes for easier "drop in" equipment upgrades (though may be necessary for long runs at the higher bitrates for older oxidising or lower grade of cable to replaced ...

  3. SDI-12 - Wikipedia

    en.wikipedia.org/wiki/SDI-12

    The SDI-12 Specification is maintained by a non-profit corporation called the SDI-12 Support Group. The most recent upgrade (Version 1.4) was made in July 2016. [3] The most recent version of the SDI-12 Specification (still version 1.4, with clarifications), was released on January 30, 2021.

  4. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    In 2004 the FCC developed a new band plan where narrowband operations are provided in 806–816 and 851–861 MHz ranges while wideband operations are allowed in 817–824 MHz and 862–869 MHz separated from narrowband services by a 1 MHz wide guard band. [6] The wideband services part of the SMR band was called ESMR (Enhanced SMR).

  5. File:United States Frequency Allocations Chart 2011 - The ...

    en.wikipedia.org/wiki/File:United_States...

    Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web site and archived at archive.org.

  6. 7 best banks for seniors and retirees in February 2025: Ring ...

    www.aol.com/finance/best-bank-accounts-for...

    See our editor's picks for best savings, checking and hybrid accounts for active agers, seniors and retirees, updated for December 2024.

  7. Citizens Broadband Radio Service - Wikipedia

    en.wikipedia.org/wiki/Citizens_Broadband_Radio...

    Citizens Broadband Radio Service (CBRS) is a 150 MHz wide broadcast band of the 3.5 GHz band (3550 MHz to 3700 MHz) in the United States. [1] In 2017, the US Federal Communications Commission (FCC) completed a process which began in 2012 to establish rules for commercial use of this band, while reserving parts of the band for the US Federal Government to limit interference with US Navy radar ...

  8. 100 best discounts for ages 50+: Where to save money for ...

    www.aol.com/finance/best-senior-discounts...

    United — Limited senior fares available (select Senior 65+ when booking) Hotel discounts While quite a few hotels offer discounted rates, they tend to come with caveats about availability and ...

  9. Unlicensed Personal Communications Services - Wikipedia

    en.wikipedia.org/wiki/Unlicensed_Personal...

    Unlicensed Personal Communications Services or UPCS band is the 1920–1930 MHz frequency band allocated by the United States Federal Communications Commission (FCC) for short range Personal Communications Services (PCS) applications in the United States, such as the Digital Enhanced Cordless Telecommunications (DECT) wireless protocol.