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2) Medium range mobile transceivers
Such as those used in police cars, fire trucks, ambulances and
taxis. These usually have the antenna mounted on the outside
of the vehicle, and -
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, such as cordless
phones, laptop computers, AM/FM radios, TV sets, CD players,
cassette players and small appliances such as electric shavers
and hair dryers, as far as we know, are not likely to cause EMI
problems to your powered vehicle.
Powered Vehicle Electromagnetic Interference (EMI)
Because EM energy rapidly becomes more intense as one
moves closer to the transmitting antenna , the EM filed from
hand-held radio wave sources (transceivers) are of special
concern. It is possible to unintentionally bring high levels of EM
energy close to the powered vehicle’s control system while
using these devices. This can affect powered vehicle movement
and braking. Therefore, the warnings listed below are
recommended to prevent possible interference with the control
system of the powered vehicle.
WARNINGS : Electromagnetic interference (EMI) from sources
such as radio and TV stations, amateur radio (HAM)
transmitters, two-way radios and cellular phones can affect
powered vehicles.
Following the warnings listed below should reduce the chance
of unintended brake release or powered vehicle movement
which could result in serious injury:
1) Do not operate hand-held transceivers (transmitters-
receivers) such as citizen band (CB) radios, or turn ON
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