February 2016
Intermediate to advanced
216 pages
14h 38m
English
Content preview from Newnes Audio and Hi-Fi Engineer's Pocket Book, 3rd Edition
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High-quality radio
Receiver principles
Amplitude modulation When a high frequency is modulated
by an audio signal, it is termed a carrier and the audio is the
modulation frequency. If the shape of the carrier varies with the
modulation it is said to be amplitude modulated. Other
frequencies are produced which correspond to the carrier plus
and minus the modulation frequency. These are known as
sidebands. The total range of frequencies from the highest to
the lowest sidebands describes the bandwidth of the signal.
SSB In the radio-frequency spectrum, each transmission thus
represents not a single frequency but a band which depends on
the exten ...
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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.