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believe that by following the warnings listed below, your risk to
EMI can be greatly minimized.
3.2 The sources of radiated EMI can be broadly classified into three
types.
3.2.1 Hand-held portable transceivers (transmitter-receivers) with the
antenna mounted directly on the transmitting unit, such as
citizens band (CB) radios, walkie-talkies, security and fire or police
transceivers, cellular telephones and other personal
communication devices;
NOTE:
Some cellular telephones or similar devices transmit signals while they are ON,
even though they are not in use.
3.2.2 Medium-range mobile transceivers used in police cars, fire trucks,
ambulances and taxis usually having the antenna mounted on the
outside of the vehicle; and
3.2.3 Long-range transmitters and transceivers, such as commercial
broadcast transmitters (radio and TV broadcast antenna towers)
and amateur (HAM) radios.
NOTE:
Other types of hand-held devices (cordless phones, laptop computers, AM/FM
radios, TV sets, CD players, cassette players, and small appliances such as electric
shavers and hair dryers, et cetera) so far as we know, are not likely to cause EMI
problems.
3.3 Powered Vehicle Electromagnetic Interference (EMI)
3.3.1Because EM energy rapidly becomes more intense as one moves
closer to the transmitting antenna (source), the EM fields from
hand-held radio wave sources (transceivers) are of special concern.
It is possible to unintentionally bring high levels of EM energy too
close to the powered vehicle's control system while using these
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