Tuner (radio) - Wikipedia
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.
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How Radio Works - HowStuffWorks
May 30, 2023 · When you listen to an AM radio broadcast, your radio is tuning in to a sine wave with a frequency of around 1,000,000 cycles per second (cycles per second is also known as hertz). For example, 680 on the AM dial is 680,000 cycles per second.
How to Build and Tune an AM Radio : 5 Steps - Instructables
The purpose of this Instructable is to demonstrate how to design and build a resonator circuit that will let us tune to a given AM radio frequency. We will also briefly discuss how radio frequencies are transmitted and how amplitude modulation (AM) works.
How does a digital radio tuner work? - Physics Stack Exchange
Aug 21, 2014 · I believe I understand how tuning a radio with an analog tuner works: turning the dial physically changes the length of the antenna, which determines which broadcast wavelength will resonate in the antenna and get picked up. In contrast, what is the mechanism that makes a digital tuner work?
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Radio enthusiasts just love to hang accessories on their equipment. For shortwave receivers and VHF/UHF scanners, the list of popular accessories on the antenna end includes filters , wavetraps , attenuators , preamplifiers , and preselectors . If you read all the hype for these products, then you might be tempted to think of the story about the