This project can demonstrate the principle of radio and can be used in different tasks. Some examples include using it as a spy bug, using it as a talk-show radio, or even as a hand-held wireless microphone.
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| <FM transmitter and Radio> |
It can be transmitted at a farther range, depending on what components it uses, the antenna length, and many more. Because of that, you will always have to be responsible for how you are going to use it.
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| <circuitry> |
In this circuit, there are 2 important components: the coil and a tuning capacitor. When combined, they oscillate with the (RF) high magnetic fields, thus, building up to the point where it starts to generate waves. That configuration is called a tank circuit, which is the core of most systems that need to transmit radio signals to the air, as well as collect the radio signals as a receiver.
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<Parts>
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To get started with the circuit, you need to assemble the components as close to each other. Once that is done, you will need a tuning capacitor, a hand-wound coil (At least 4-8 turns), and a transistor. The antenna used can be just a plain wire, but note that the wire has to be long enough so that the transmitter can transmit the waves farther enough. The antenna can also be connected between the collector of the transistor and the coil/capacitor to increase range, or on one of the turns of the coil, to increase stability.
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| <Internals> |
There are many ways how to make the transmitter function better. For example, try changing the voltage of the power supply, or try changing the value of the components. Whatever method you try out, stay responsible, and have fun.
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| <Circuit> |
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