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Transmitter Circuits

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Mini Transceiver Circuit

Last Updated on December 6, 2024 by Swagatam 7 Comments

transiever circuit

A transceiver is a wireless communication device which has its own transmitter and receiver units built-in for communicating with another similar device at some distant location. The user on both sides with the unit has to switch from transmitter to receiver and vice versa while speaking and hearing to each others conversation respectively. Introduction In […]

Filed Under: Transmitter Circuits Tagged With: Mini, Transceiver

Fiber Optic Circuit – Transmitter and Receiver

Last Updated on January 3, 2024 by Swagatam 13 Comments

optical fiber

Electronic signals have been quite successfully sent for decades through standard “hard -wire” connections, or by using radio links of different kinds which had many disadvantages. On the other hand fiber optic links, whether used for audio or video links over long ranges, or to handle small distances, have been offering some distinct advantages compared […]

Filed Under: Transmitter Circuits Tagged With: Fiber, Optic, Receiver, 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: Transmitter Circuits Tagged With: Internet, LiFi, Signal, Transfer, Transmitter, USB

Make a Walkie Talkie Circuit using FM Radio

Last Updated on February 27, 2020 by Swagatam 59 Comments

walkietalkie

In this post I have explained how to make a simple homemade walkie talkie circuit using ordinary FM transmitters and FM radios. It’s a perfectly tested design by me. I could talk with my nephew who stays on first floor through a pair of these transmitters with crystal clear transmission. Overview In one of my […]

Filed Under: Transmitter Circuits Tagged With: FM, Radio, Talkie, Walkie

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: Transmitter Circuits Tagged With: Range, Transmitter

RFID Reader Circuit using Arduino

Last Updated on December 31, 2019 by Swagatam 7 Comments

In this article we are going to take a tour on RFID circuit technology. We will be exploring how RFID tags and readers work, how to interface RFID module (RC522) with Arduino and extract some useful information from the RFID tags. Using RFID Tags I am sure every one of you has used RFID to […]

Filed Under: Transmitter Circuits Tagged With: Arduino, Reader, RFID

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