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Transmitter

LiFi Internet Transmitter Circuit – USB Signal Transfer through LED

Last Updated on July 27, 2020 by Swagatam 65 Comments

feaafaf10bf86605998d68782fbfc074

In this post I have explained how to transmit Internet data through LiFi using a class D amplifier as the transmitter and an ordinary audio amplifier circuit as the receiver. How Li-Fi Concept Works If you are wondering how a LiFi concept could be used for transmitting USB data, this article will provide with all […]

Filed Under: Wireless Circuits Tagged With: Internet, LiFi, Signal, Transfer, Transmitter, USB

27 MHz Transmitter Circuit – 10 Km Range

Last Updated on January 19, 2025 by Swagatam 19 Comments

27 MHz prototype

The 10 km range, 27 MHz transmitter circuit explained here uses citizen’s band which consists of 2 main types of users: radio control (R/C) modellists and users of low-power FM transceivers for local communication. However, here it is designed and intended for testing antennas and aligning receivers. It is actually an AM/FM quartz controlled for […]

Filed Under: Wireless Circuits Tagged With: Range, Transmitter

10 Simple FM Transmitter Circuit Diagrams Explained

Last Updated on September 12, 2026 by Swagatam 132 Comments

two transistor FM transmitter

An FM transmitter circuit is a high frequency wireless device which is able to transmit voice signals into atmosphere so that it can be received by a corresponding FM receiver circuit for reproducing the voice signals in a loudspeaker. Here we’ll discuss how to build small FM transmitter circuits using 10 different methods, one that […]

Filed Under: Wireless Circuits Tagged With: Diagrams, Explained, FM, Simple, Transmitter

1.5 watt Transmitter Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 20 Comments

1.5 watt transmitter circuit

This little transmitter will allow you to communicate, chat, send music transmission on any standard FM Radio tuned within the existing band, across a radial distance of not less than 500 meters or half a kilometers. Warning: Using this transmitter could be illegal in your country or area, take appropriate permissions before indulging. How it […]

Filed Under: Wireless Circuits Tagged With: Transmitter, Watt

Simple TV Transmitter Circuit (Audio and Video Combined)

Last Updated on November 24, 2024 by Swagatam 20 Comments

TVtransmittercircuit

The TV transmitter circuit presented in this post incorporates the European standard FM frequency for audio and Video up-links. Referring to the circuit below, Q1 is configured as a preamplifier for amplifying the audio input to be modulated. Circuit  Description Q2 is fundamentally responsible for conducting a couple of important functions: It amplifies the carrier frequency […]

Filed Under: Wireless Circuits Tagged With: Audio, Combined, Simple, Transmitter, TV, Video

Long Range Transmitter Circuit – 2 to 5 Km Range

Last Updated on February 1, 2020 by Swagatam 179 Comments

DSC 0143

The proposed long range transmitter circuit really is very steady, harmonic free design which you can use with standard fm frequencies between 88 and 108 MHz. Technical Specifications of the Transmitter This will likely encompass 5km spectrum (long range). It includes an extremely consistent oscillator for the reason that you employ LM7809 stabilizer that is […]

Filed Under: Wireless Circuits Tagged With: Long, Range, Transmitter

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