Like it picks up a signal and processes it and from that I can hear music. But is it just the variation in frequency? And if so, then how do stations work?
In: Technology
in addition to what everyone said here, think about you playing a song through speakers. it gets sent “audio signal” through electrical wires, but it still carries the appropriate sound “information” along with it.
so to make that happen there’s something, the recording device, which translate sound waves into some electrical signal, and there’s another device, the speaker, which translates electrical signal to sound waves.
replace the wire carrying electrical signals with radio frequency waves traveling through the atmosphere.
radio frequency is huge, relatively to the whole electromagnetic spectrum, so signals carried under a certain frequency can be brought back to the original sound waves. but if you take an entirely different frequency and attempt to “decode” the radio frequency signal under a different “speaker” (which in this case would be a station with a different frequency “speaker”), it just ends up sounds like random noise, aka static.
Latest Answers