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  2. Antenna types - Wikipedia

    en.wikipedia.org/wiki/Antenna_types

    Small monopoles ("whips") are used as compact, but low-gain antennas on portable radios in the HF, VHF, and UHF bands. Whip Type of antenna used on mobile and portable radios in the VHF and UHF bands such as FM "boom boxes", consists of a flexible rod, often made of telescoping segments

  3. Very high frequency - Wikipedia

    en.wikipedia.org/wiki/Very_high_frequency

    From then on, TV was broadcast on both VHF and UHF (VHF being a monochromatic downconversion from the 625-line colour signal), with the exception of BBC2 (which had always broadcast solely on UHF). The last British VHF TV transmitters closed down on January 3, 1985. VHF band III is now used in the UK for digital audio broadcasting, and VHF band ...

  4. 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 ...

  5. Ultra high frequency - Wikipedia

    en.wikipedia.org/wiki/Ultra_high_frequency

    The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz. [2] Two other IEEE radar bands overlap the ITU UHF band: the L band between 1 and 2 GHz and the S band between 2 and 4 GHz. UHF television antenna on a residence. This type of antenna, called a Yagi–Uda antenna, is widely used at UHF frequencies.

  6. List of RF connector types - Wikipedia

    en.wikipedia.org/wiki/List_of_RF_connector_types

    Other popular applications include broadband, military and instrumentation. The 2 stud bayonet clamp design allows quick and easy coupling without requiring special tools. UHF connector (e.g., PL-259/SO-239). Some Japanese manufacturers such as Diamond Antennas use an M-type clone which has the measures and thread translated to metric.

  7. RF power amplifier - Wikipedia

    en.wikipedia.org/wiki/RF_power_amplifier

    A radio-frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [1] Typically, RF power amplifiers are used in the final stage of a radio transmitter , their output driving the antenna .

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