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IR Based Wireless Audio Transmitter and Receiver : 6 …
https://www.instructables.com/IR-Based-Wireless-Audio-Transmitter-and-Receiver/
The Audio signal will be transmitted through an IR LED from the transmitter circuit; the IR signals will be then received by a photodiode which will be placed on the receiver circuit. The audio signal thus received by the photodiode will be very weak and hence it will be amplified by an LM386 amplifier circuit and finally played on a speaker.
RF Transmitter and Receiver Circuit Diagram
https://circuitdigest.com/electronic-circuits/rf-transmitter-and-receiver-circuit-diagram/
A transmitter can only send information and a Receiver and can only receive it, so data can always be sent from one end to another and not the other way around. The Transmitter module consists of three pins namely Vcc, Din and ground as shown above. The Vcc pin has a wide range input voltage from 3V to 12V.
Fiber Optic Circuit - Transmitter and Receiver - …
https://www.homemade-circuits.com/fiber-optic-transmitter-receiver-circuit/
Fiber Optic Circuit – Transmitter and Receiver. 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 …
Mini Audio Transmitter : 8 Steps (with Pictures ...
https://www.instructables.com/Mini-Audio-Transmitter/
Well all of us have heard of "frequency modulation", most commonly known as "FM", this circuit works on the very same principal to transmit audio signals captured by the microphone. This circuit uses BC547 transistor to amplify the signal and then frequency modulate it.
Ultrasonic Transmitter and Reciever | Circuit Diagram ...
https://www.electronicsforu.com/electronics-projects/ultrasonic-transmitter-receiver
The transmitter circuit works off 9-12V DC. Ultrasonic receiver circuit. The receiver circuit (Fig.2) is built around a single decade counter CD4017 (IC4) and a few discrete components. To check the working of the transmitter, it is necessary to down-convert the 40kHz signal into 4kHz to bring it in the audible range.
THE METHOD OF IMPEDANCE OF RECEIVER/TRANSMITTER ...
http://bulletin.am/wp-content/uploads/2020/06/5.pdf
performance of the circuits have become more complex. Due to the low cost and high performance, the CMOS receiver and transmitter circuits sequentially have been widely used in modern applications. One of the main problems in the transmitter-receiver circuits is correspondingly their output and input impedance calibration.
How would you extend the range of your transmitter and ...
https://www.quora.com/How-would-you-extend-the-range-of-your-transmitter-and-receiver-modules-dish-antennas-signal-amplifier
In the early days of tube amplifiers, when radios were expensive, some receiver circuits were actually designed to amplify audio (from the demodulator) and RF at the same time. The technique was known as ‘reflex’. It would save a tube, but was not popular. The RF was coupled by tuned circuits and filtered out of the audio circuits with capacitors.
3.4: Receiver and Transmitter Architectures - Engineering ...
https://eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Microwave_and_RF_Design_I_-_Radio_Systems_(Steer)/03%3A_Transmitters_and_Receivers/3.04%3A_Receiver_and_Transmitter_Architectures
3.4.1 Radio as a Cascade of Two-Ports. The front end of an RF communication receiver or transmitter combines a number of subsystems in cascade. The design of the RF front end requires trade-offs of noise generated by the circuit, of frequency selectivity, and of power efficiency, which translates into battery life for a communication handset.
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