June 2000
Beginner
264 pages
8h 47m
English
Content preview from The Technician's EMI Handbook
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Chapter 8
Controlling Transmitter Spurious Emissions
Radio transmitters are a particular problem in dealing with EMI because they normally produce relatively large amounts of radio-frequency energy. If other devices respond to it inappropriately, then an EMI situation exists. It’s not always the transmitter’s fault, of course. The rule is simple: an electronic device must respond to the desired signals, and not respond to undesired signals. It’s that second part that’s a bit difficult. Many products are on the market that will respond inappropriately to a local transmitter.
TYPES OF TRANSMITTER
Before discussing how to deal with EMI from transmitters, let’s first look at several different transmitter architectures. Figure 8.1 shows the simple ...
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