How do garage door openers (older, non-rolling code ones) send their 8-bit signal (what modulation, how are the bits sent, etc.)?
by 
evanolds
ANSWERS: 1
-
The answer is amplitude modulation. The (8 bit code ) is feed serially to the transmitter and turns the transmitter on and off. The goal is to keep it simple and inexpensive. Phase modulation is far superior to Pulsed Amplitude Modulation however the goals of the device are met with PAM. Hope this helps But Hey, what do I know
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC