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Marantz 2050L AM/FM stereo tuner (USA; 1978-1980) [1]. In electronics and radio, a tuner is a type of receiver subsystem that receives RF transmissions, such as AM or FM broadcasts, and converts the selected carrier frequency into a form suitable for further processing or output, such as to an amplifier or loudspeaker.
A tuned radio frequency receiver (or TRF receiver) is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages followed by a detector (demodulator) circuit to extract the audio signal and usually an audio frequency amplifier. This type of receiver was popular in the 1920s.
The radio frequency current from the transmitter is supplied to the antenna through a cable called the feedline.The antenna tuning hut contains a matching network made of high wattage capacitors and inductors (coils) that in combination match the antenna's impedance to the feedline, to efficiently transfer power into the antenna.
No 80 MSPS 0/2 USB 2.0, 10/100 Ethernet Yes Yes Yes AirSpy R2 [18] Pre-built Active 24 – 1700 MHz 10 MHz 12 N/A No 10 MSPS MSps ADC sampling, up to 80 MSPS for custom applications 0.5 0/1 USB Yes Yes Yes using ports none AirspyHF+ [19] Pre-built Active 9 kHz - 31 MHz 60 MHz - 260 MHz 660 kHz 18 N/A No 36 MSPS 0.5 0/1 USB Yes Yes Yes Antsdr [20]
In radio equipment, Automatic Frequency Control (AFC), also called Automatic Fine Tuning (AFT), is a method or circuit to automatically keep a resonant circuit tuned to the frequency of an incoming radio signal. It is primarily used in radio receivers to keep the receiver tuned to the frequency of the desired station.
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline. Antenna tuners are particularly important for use with ...
ASTEC UM 1286 UHF modulator, top cover taken off. An RF modulator (radio frequency modulator) is an electronic device used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver.
Antenna tuner, an adjustable device that matches the impedance at the end of a transmission line to an antenna or a radio ATSC tuner , a device that receives digital television broadcasts Tuner (radio) , a module or device which separates out one channel from low-amplitude radio-frequency signals for further processing or output, such as AM, FM ...