In this tutorial, we are demonstrating a project of FM, AM, MW, and SW Antenna amplifiers. Utilize this FM amplifier in those zones where the signal gathering of FM stations is poor. An antenna amplifier is a device that amplifies an antenna signal, for the most part into a yield with a similar impedance as the input impedance. An antenna amplifier helps a radio signal extensively for devices that get radio waves. This is the easiest and best antenna amplifier circuit to help you to boost the antenna signals.
Hardware Components
The following components are required to make Antenna Amplifier Circuit
| S.No | Components | Value | Qty |
|---|---|---|---|
| 1 | Transistor | MPF102 | 1 |
| 2 | Coil | 470uH for AM & 20uH for SW | 1 |
| 3 | Antenna | – | 1 |
| 4 | Resistor | 1M | 1 |
| 5 | Ceramic Capacitor | 470pF | 2 |
| 6 | Battery | 9V | 1 |
MPF102 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of MPF102
Antenna Amplifier Circuit
Working Explanation
This is the circuit diagram of the FM, AM/MW, and SW antenna amplifier circuit or we can likewise say it antenna preamplifier circuit which can be utilized to expand the faint signals of FM, AM/MW, and SW groups. The circuit is straightforward and simple to assemble utilizing just a single transistor MPF102 and a couple of different parts. But, if you didn’t discover the MPF102 transistor, at that point you can utilize NTE451 or 2N4406 as a substitute. For L1 utilize 470uH curl for AM and for shortwave utilize 20uH loop.
This circuit can be fueled with a 9V basic battery or on the off chance that you are utilizing a power supply, at that point bypass the power supply with a 0.04 uF capacitor to diminish noise. An antenna can be an 18inch telescope or an 18inch thick piece of copper wire.
Applications and Uses
An antenna amplifier amplifies a radio signal significantly for devices that get radio waves. Numerous gadgets have an RF amplifier stage in their hardware, that enhances the antenna signal, these incorporate, however, are not restricted to radios. These types of amplifiers can amplify the signals of TVs, cell phones, Wi-Fi and Bluetooth, etc.
