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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 ...
All PA systems have the potential for audio feedback, which occurs when a microphone picks up sound from the speakers, which is re-amplified and sent through the speakers again. It often sounds like a loud high-pitched squeal or screech, and can occur when the volume of the system is turned up too high.
A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...
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The satellite receiver or set-top box demodulates and converts the signals to the desired form (outputs for television, audio, data, etc.). [17] Often, the receiver includes the capability to selectively unscramble or decrypt the received signal to provide premium services to some subscribers; the receiver is then called an integrated receiver ...
Area served City of license VC RF Callsign Network Notes Allentown: Philadelphia: 35 9 WPPT: PBS: World on 35.2 : Allentown: 39 9 WLVT-TV: PBS: Create on 39.2, France 24 on 39.3 : Allentown ...
WYOU (channel 22) is a television station licensed to Scranton, Pennsylvania, United States, serving as the CBS affiliate for Northeastern Pennsylvania.It is owned by Mission Broadcasting, which maintains a shared services agreement (SSA) with Nexstar Media Group, owner of Wilkes-Barre–licensed NBC affiliate WBRE-TV (channel 28), for the provision of certain services.
WPVI-TV (channel 6), branded 6 ABC, is a television station in Philadelphia, Pennsylvania, United States. Owned and operated by the ABC television network through its ABC Owned Television Stations division, the station maintains studios on City Avenue in the Wynnefield Heights section of Philadelphia, and a transmitter in the city's Roxborough neighborhood.