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  2. 40-meter band - Wikipedia

    en.wikipedia.org/wiki/40-meter_band

    A HB9XBG Full Size Vertical Antenna for the 40m-band on Simplon Pass with view to Mount Fletschhorn. The 40-meter or 7-MHz band is an amateur radio frequency band, spanning 7.000-7.300 MHz in ITU Region 2, and 7.000-7.200 MHz in Regions 1 & 3. It is allocated to radio amateurs worldwide on a primary basis; however, only 7.000-7.200 MHz is ...

  3. Telephone numbers in Canada - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Canada

    Telephone numbers in Canada follow the fixed-length format of the North American Numbering Plan (NANP) of a three-digit area code, a three-digit central office code (or exchange code), and a four-digit station or line code. This is represented as NPA NXX XXXX. [1]

  4. Area codes 450, 579, and 354 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_450,_579,_and_354

    Area code 450 entered service in 1998. The numbering plan area completely surrounds area code 514, which was confined to the Island of Montreal and a few surrounding islands, and so it is one of the six pairs of "doughnut area codes" in the numbering plan, and the only one in Canada (Toronto's area code 416 also borders Lake Ontario).

  5. List of WAAS reference stations - Wikipedia

    en.wikipedia.org/wiki/List_of_WAAS_reference...

    Each reference station in the Wide Area Augmentation System includes three GPS antennas. The coordinates of each antenna, along with its elevation, are listed below. The coordinates of each antenna, along with its elevation, are listed below.

  6. The 7 Best HDTV Antenna Amplifiers of 2023 For a Better Signal

    www.aol.com/lifestyle/best-high-definition-tv...

    Best Overall: Channel Master Ultra Mini Antenna Amplifier. Best Value: Antop TV Antenna Amplifier. Most Versatile: The Cimple Co TV Antenna Amplifier. Easiest Setup: Winegard LNA-100 Boost Antenna ...

  7. Antenna types - Wikipedia

    en.wikipedia.org/wiki/Antenna_types

    A competing third criterion is the number and bandwidth of the frequenc(y/ies) that a single antenna intercepts or emits. A fourth design goal is to make the antenna directional: To project or intercept radio waves from only one vertical and / or horizontal direction as exclusively as possible. Simple antennas

  8. Area codes 416, 647, and 437 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_416,_647,_and_437

    The 647 area code does not carry the same strong geographic associations as it disproportionately contains nomadic services (such as mobile telephones and voice over IP); an incumbent Bell land line is hard-wired to a specific location in area 416, postal code M. Some have paid a premium for a true 416 number as the code gives the appearance of ...

  9. Maidenhead Locator System - Wikipedia

    en.wikipedia.org/wiki/Maidenhead_Locator_System

    The Maidenhead Locator System (a.k.a. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. [1]