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    • Radio Frequencies and their Corresponding Purposes

      Radio Frequencies and their Corresponding Purposes

      The Federal Communications Commission (FCC) licenses the frequency spectrum in the United States. Useful charts showing frequency allocations are available from the National Telecommunications and Information Administration (NTIA) at http://www.ntia.doc.gov/osmhome/allochrt.html. This table shows commonly used names for various frequency ranges: Frequency Description 30 – 300 GHz Extremely High Frequency 3 – 30 GHz Super High

    • How to Install an Antenna

      How to Install an Antenna

      The installation of an antenna starts with the analysis of few things that are decisive in ensuring reception quality. First you must decide which type of antenna will be used. Choosing the antenna type for the requirement is crucial, as the antenna used generally requires a specific antenna for the specific use. Next you must

    • Pulse Width Modulation

      Pulse Width Modulation

      Pulse Width Modulation, abbreviated as PWM, is a method of transmitting information on a series of pulses. The data that is being transmitted is encoded on the width of these pulses to control the amount of power being sent to a load. In other words, pulse width modulation is a modulation technique for generating variable

    • Frequency Changer

      Frequency Changer

      A frequency changer makes it possible to change electricity moving at one frequency to another frequency. However, in order to fully understand what a frequency changer does, it is helpful to understand the frequency of electricity. The Frequency of Electricity Electricity doesn't move at one specific speed. In fact, it can move at many speeds.

    • RFID Skimmer

      RFID Skimmer

      Radio-Frequency Identifier (RFID) technology has become really popular because of the various advantages it comes with. However,   such as passports, national identity cards, credit cards etc have become a serious security concern. Two electrical engineering students (Ilan Kirschenbaum and Avishai Wool) from Tel Aviv University wrote a paper titled "How to Build a Low-Cost,

    • F Connector

      F Connector

      The F connector is a particular type of radio frequency connector that was developed in the early 1950’s. Eric Winston is usually credited with the creation of the F connector, while developing cable television as an alternative to the broadcast television options of the day. What does the F Connector do? The F connector provides

    • Business Band

      Business Band

      Business band stands for a series of frequencies in the UHF and VHF two-way radio bands, which are exclusively reserved for businesses to communicate within limited ranges. Of course, not just anyone can use this bandwidth. Anyone that wants to use the business band must first receive a license from the Federal Communications Commission, also

    • High Frequency Alternator

      High Frequency Alternator

      A high-frequency alternator is an electrical device used for radio communications. It yields high-frequency, periodically alternating current that can go as high as 100,000 Hz for the purpose of producing stable radio waves. The History of High-Frequency Alternators By the first decade of the 20th century, wireless telegraphy was already in place and was no

    • Yagi HDTV Antenna

      Yagi HDTV Antenna

      What is a Yagi HDTV Antenna? A Yagi antenna is one that uses directional, single-plane dipoles to pick up over-the-air radio transmissions for TV and radio. Yagi antennas have been extremely popular since the 1950s but have declined in use as more users have switched to cable and satellite plans. Yagi antennas are still widely

    • MURS (Multi Use Radio Service)

      MURS (Multi Use Radio Service)

      MURS, or the Multi-Use Radio Service, is a public radio service created by the FCC in the Fall of 2000 that can be accessed by any individual for personal or business-related purpose. MURS was created for the general public to use without acquiring a license to broadcast, but requires that users remain within the frequencies

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