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Understanding PWM Transmitters - Radio World
https://www.radioworld.com/tech-and-gear/understanding-pwm-transmitters
4. Principles of PWM circuits. An essential part of making a PWM circuit is the setting up of the audio and triangle wave signal such that a proper …
Transmission of Stereo Audio Signals with Lasers
https://scholarworks.uark.edu/cgi/viewcontent.cgi?article=1030&context=eleguht
Pulse-width modulation (PWM) is a modulation technique comparable to the common methods of modulation such as frequency modulation (FM) or amplitude modulation (AM) and will be explained in greater depth later in this document. The transmission of audio via laser is not currently economically sensible as the other
Infrared PWM Transmitter
https://web.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab4_2C_2009.pdf
Infrared PWM Transmitter Overview In this lab you will construct a circuit to produce a 40kHz analog pulse-width-modulator (PWM), to be used later in our one-way analog audio communication link. Later we will combine this modulator with the microphone circuit from am earlier lab to form a complete IR audio transmitter.
Transmission solenoids: PWM, Frequency, Duty Cycle?
https://go4trans.com/technical-transmission-general-articles/pwm-frequency-duty-cycle/
Figure 1: PWM and Duty Cycle Diagram. Frequency as it relates to PWM, is the number of times per second that we repeat the on and off cycle. If we pulse the solenoid on and off at a given duty cycle 30 times a second, we have a frequency of 30 Hz. If you look through any GM literature on early GM four speed transmissions, they clearly state the ...
Low-quality wireless audio transmission with Arduino ...
https://blog.arduino.cc/2019/07/25/low-quality-wireless-audio-transmission-with-arduino/
Low-quality wireless audio transmission with Arduino. Arduino Team — July 25th, 2019. After considering the price of helmet-mounted headsets for motorcycle or moped use, YouTuber GreatScott! decided to try making his own. His walkie-talkie prototype consisted of two Arduino Nano boards, using nRF24L01+ transceivers and a small speaker for PWM ...
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