✳flâneur — a map of the web's best reading

How to Build an AM Radio Receiver - Circuit Basics

circuitbasics.com · 3,392 words · saved by 1 readers

In this article, we will first talk about radio frequencies and amplitude modulation. Then we will build three different AM radio receivers in order of increasing complexity. The first AM radio has no amplifier and only relies on resonance to create sound. The second AM receiver has a transistor amplifier, and the final AM receiver circuit uses an LM386 amplifier chip. Medium wave is a band of radio frequencies extending from 530kHz to 1700kHz. On the other hand, short wave extends beyond that and up to about 30MHz. Medium wave and short wave were the main broadcast radio bands until the advent of FM. But they are still popular as they have more channel space than FM stations and offer longer range coverage, especially at night via the ionosphere. AM receivers are also simple and easy to build. Radio stations in the medium wave and short wave bands transmit their signals using Amplitude Modulation (AM). This means that the transmitter radio (or carrier) signal is modulated with the mus

How to Build an AM Radio Receiver Skip to content How to Build an AM Radio Receiver Circuit Basics AM and FM Radios By Scott Campbell Building an AM radio is a fun way to get into electronics. In this project, we will build an AM radio receiver. Along the way we will see how to design and optimize LC oscillator circuits, RC circuits, transistor amplifiers, and power amplifiers. This radio receives AM broadcast frequencies in the range of 535 kHz to 1705 kHz, which is common in North and South America. In Europe and Asia, the range is 535 kHz to 1605 kHz, so we will also look at a way to modify

Explore this link on the map →

saved by

related reading