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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 .
Broadcast engineering or radio engineering is the field of electrical engineering, and now to some extent computer engineering and information technology, which deals with radio and television broadcasting. Audio engineering and RF engineering are also essential parts of broadcast engineering, being their own subsets of electrical engineering.
In the simplest type of radio receiver, called a tuned radio frequency (TRF) receiver, the three functions above are performed consecutively: [9] (1) the mix of radio signals from the antenna is filtered to extract the signal of the desired transmitter; (2) this oscillating voltage is sent through a radio frequency (RF) amplifier to increase ...
The name was changed to M/A-COM in 1978 to reflect the company's growing involvement in the telecommunication industry and the merger with DCC, Digital Communications Corporation. During this timeframe, the company produced low power wideband RF amplifier modules for use in test & measurement. In May 1981, MACOM acquired Ohio Scientific.
The FM-1 stereo radio tuner was praised at the Consumer Electronics Show. [2] In 1981, the FM-2 with digital tuning was released. [2] To complement its line of audiophile power amplifiers, Crown introduced a companion line of electrostatic loudspeakers in 1973, namely the ES224, the ES212, the ES26 and the ES14. [12]
But under current law, the list of government agencies with authority to buy and use radio frequency jammers is short, including the FBI and the Department of Homeland Security, as well as the ...
Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.
(a) To develop the use of personal radio services as an additional source of communications for emergencies, disasters, and as an emergency aid to individuals; [1] (b) To establish 24-hour volunteer monitoring of emergency calls, particularly over officially designated emergency frequencies, from personal radio service operators, and report such calls to appropriate emergency authorities; [1]
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