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The Channel Master 4251, a high-performance parabolic UHF television antenna, stood about seven feet in diameter. [19] Channel Master also built distribution amplifiers for cable television , satellite dishes and satellite antenna accessories.
The Channel Master Ultra Mini Antenna Amplifier delivers solid performance, and can act as a hub for sending cable to TVs throughout the house. With four ports granting an extra 8 decibels of gain ...
In electronics, an antenna amplifier (also: aerial amplifier or booster) is a device that amplifies an antenna signal, usually into an output with the same impedance as the input impedance. Typically 75 ohm for coaxial cable and 300 ohm for twin-lead cable. An antenna amplifier boosts a radio signal considerably for devices that receive radio ...
The system consists of a master antenna and a matching transformer to match the balanced antenna with unbalanced cable and amplifiers. [5] Most antennas have an impedance of around 300 Ω. To convert it to 75 Ω, a matching transformer (or balun) is used. For trunk line isolation, a resistive inductive device known as a splitter is used.
He also helped found Channel Master, which became a leading producer of television antennas after Resnick invented an antenna which was inexpensive, easy to assemble and install, and did not require the expertise of a specially trained technician.
These antennas are often built into a single tower structure called a master antenna television structure. Commercial TV pre-amplifiers strengthen the weakened terrestrial TV signals for distribution, usually after re-modulation using a cable-specific analog or digital scheme.