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  2. Antenna amplifier - Wikipedia

    en.wikipedia.org/wiki/Antenna_amplifier

    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 ...

  3. Integrated reception system - Wikipedia

    en.wikipedia.org/wiki/Integrated_reception_system

    An IRS mast (highest in picture) on a communal housing block, with a few of the aerials it will replace. An integrated reception system (IRS) provides broadcast signals from multiple sources (typically terrestrial television, FM radio, DAB digital radio and satellite TV) to multiple outlets, via a single aerial cluster and signal booster-distributor.

  4. Directional antenna - Wikipedia

    en.wikipedia.org/wiki/Directional_antenna

    A high-gain antenna (HGA) is a directional antenna with a focused, narrow beam width, permitting more precise targeting of the radio signals. [1] Most commonly referred to during space missions , [ 2 ] these antennas are also in use all over Earth , most successfully in flat, open areas where there are no mountains to disrupt radiowaves.

  5. Best noise-canceling headphones, according to Consumer Reports

    www.aol.com/news/best-noise-canceling-headphones...

    Sony WF-1000XM4 $278.00 at Walmart. Sony WF-1000XM4 $279.99 at Best Buy. Sony WF-1000XM4 $278.00 at Abt. Over-Ear, Bluetooth, and Budget-Friendly Anker SoundCore Life Q20

  6. Digital Audio Broadcasting - Wikipedia

    en.wikipedia.org/wiki/EUREKA_147

    In Korea, the transmission of MBC 11FM was stopped in 2015 and the DAB channel was switched to T-DMB V-Radio. DAB in Ireland was confined from 2017 to state broadcaster RTÉ Radio's multiplex, which was switched off in March 2021, after a survey showed 77% of adults listen to radio via FM, compared with 8% via digital means, of which 0.5% via ...

  7. Radio repeater - Wikipedia

    en.wikipedia.org/wiki/Radio_repeater

    A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. [ 1 ]