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2. Linear amplifier - Wikipedia

   en.wikipedia.org/wiki/Linear_amplifier

   A linear amplifier is an electronic circuit whose output is proportional to its input, but capable of delivering more power into a load. The term usually refers to a type of radio-frequency (RF) power amplifier, some of which have output power measured in kilowatts, and are used in amateur radio. Other types of linear amplifier are used in ...

3. 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. Design goals often include gain, power output ...

4. Radio receiver - Wikipedia

   en.wikipedia.org/wiki/Radio_receiver

   A portable battery-powered AM/FM broadcast receiver, used to listen to audio broadcast by local radio stations. A modern communications receiver, used in two-way radio communication stations to talk with remote locations by shortwave radio. Girl listening to vacuum tube console radio in the 1940s.

5. Radio receiver design - Wikipedia

   en.wikipedia.org/wiki/Radio_receiver_design

   Radio receiver design includes the electronic design of different components of a radio receiver which processes the radio frequency signal from an antenna in order to produce usable information such as audio. The complexity of a modern receiver and the possible range of circuitry and methods employed are more generally covered in electronics ...

6. Frequency modulation - Wikipedia

   en.wikipedia.org/wiki/Frequency_modulation

   Frequency modulation ( FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing . In analog frequency modulation, such as radio broadcasting, of an audio signal representing voice or music, the ...

7. Tuner (radio) - Wikipedia

   en.wikipedia.org/wiki/Tuner_(radio)

   Luxman T-240L stereo FM tuner (top) and L-235 amplifier (bottom) A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output.