November 2007
Intermediate to advanced
736 pages
46h 32m
English
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STEREO MULTIPLEX
The disadvantages of the two-station method made it imperative that a method of transmitting both signals on one carrier be devised. The result is the method called stereo-multiplex. Multiplex means a method of sending two or more messages simultaneously on one carrier or circuit. This is exactly what stereo multiplex does—it transmits both channels on the same FM carrier.
The standard FM broadcast system is based on an audio frequency response of approximately 0 to 15 kHz. There is nothing about the basic modulating systems to prevent extension of this audio-frequency range to 75 kHz (further extension would require more bandwidth than is currently allotted by FCC). Therefore, if at some point above the limit of human hearing ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.