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Association Royale des Radio Amateurs du Maroc: New Zealand New Zealand Association of Radio Transmitters: National Amateur Radio Association representing amateur radio in New Zealand. Member society of IARU Nicaragua Club de Radioexperimentadores de Nicaragua: North Macedonia Radioamaterski Sojuz na Makedonija: Norway Norsk Radio Relæ Liga ...
During the mid-20th century, Andrew Corporation became a leading producer of coaxial cables, [24] a crucial component for transmitting high-frequency signals in telecommunications and cable TV systems. At one point, Andrew Corporation was the principal engineer for Chicago's WBKB TV station, [25] which would later become Chicago's CBS affiliate ...
Such operating events are not traditional ham radio contests inasmuch as they are a night of friendly QSO’s using home-built, restored commercial ham, broadcast or military equipment. [20] The Antique Radio Club of Illinois operates a vintage radio station as a public demonstration at the Antique RadioFest allowing licensed amateurs who visit ...
Repeater frequency sets are known as "repeater pairs", and in the ham radio community most follow ad hoc standards for the difference between the two frequencies, commonly called the offset. In the USA two-meter band, the standard offset is 600 kHz (0.6 MHz), but sometimes unusual offsets, referred to as oddball splits, are used. The actual ...
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. [1]
FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.
With no matching unit, Varney specified 75 Ω cable be used at the junction of the ladder line and coax (not 50 Ω); the higher 75 Ω impedance makes a closer match the end of the ladder line. An earth-grounded 4:1 voltage balun may be used to connect the coax to the ladder line, and 1:1 current balun should be used between the coax and the ...
The 50 / 52 ohm cables are widely used for industrial and commercial two-way radio frequency applications (including radio, and telecommunications), although 75 ohms is commonly used for broadcast television and radio. Coaxial cable is often used to carry signals from an antenna to a receiver.
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