Did you know that the idea of the radio was born in the 1890s?
Since then, radio has become an integral part of our culture and our lives in general. However, many people don’t realize what radio waves even are and how they work.
Do you wish you could lift the veil of mystery? Keep reading to learn all about how radio frequencies actually work in practice.
What Are Radio Waves?
Before we can talk about the relevant technology, it’s important to learn the basics of what radio waves are. Simply put, without radio waves, radios wouldn’t be able to work and would never have been invented.
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Radio waves are like the ripples you might see in a lake after throwing a rock into it. Although we can’t see them, we can hear them using the right tools. It’s important to note that these waves have their own peaks and troughs that continue to repeat in a cycle.
Scientists can measure wavelengths based on the distance between one peak and another. To measure the frequency, you’d have to find out how many times the cycle is repeated in a single second.
Since frequencies are measured as hertz (Hz), we can say that radio waves can be anywhere from 3 kilohertz to as much as 300 gigahertz. That’s a lot of potential for all kinds of radio waves to exist.
While our naked ears may not be able to hear radio signals, we can send and transmit them using radio technology. This tech can convert the radio waves into something we can hear.
Different types of radios can pick up on different types of radio waves. It depends on their settings and general spectrum capabilities. The simplest type of radio technology is most often in the form of baby monitors because their frequency range is only 49 MHz.
To put that into perspective, the best radios can handle a range of 100,000,000 hertz or more. Radios that are used for entertainment, or even survival, should have as large a range as possible. The motorola radio, for instance, is one you won’t want to be without.
If you want something even bigger, then you’d be approaching the level of scientific observatories. The industrial electronics industry has created giant radios that can pick up on radio waves that emanate from outer space. These radio waves come from stars, black holes, and more.
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Ready to Use Radio Frequencies?
Now that you’ve learned all about how radio frequencies work in practice, you can try building your own radio. You never know what you might tune into. Be sure to let your friends and family members know what you learned.
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