Emi Warning - Shoprider 889XLSBN Instruction Manual

Electromagnetic Interface (EMI) From Radio Wave Sources
Powered motorized scooters may be susceptible to electromagnetic interference (EMI),
which is interfering electromagnetic energy (EM) emitted from sources such as radio
stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular
phones. The interference (from radio wave sources) can cause a powered scooter to
release its brakes, move by itself or move in unintended directions. It also can
permanently damage the powered scooter's control system.
The sources of radiated EMI can be classified broadly into three types:
1. Hand-held portable
mounted directly on the transmitting unit. Examples include: citizens band (CB)
radios, "walkie-talkies", fire and police transceivers, cellular telephones and other
personal communication devices. **NOTE: some cellular telephones and similar
devices transmit signals while they are ON, even when not being used.
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.
3. Long-range transmitters and transceivers, such as commercial broadcast
transmitters (radio and TV antenna towers) and amateur (HAM) radios. **NOTE:
So far as we know, 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, are not likely to cause
problems to your powered scooter.
Powered Scooter Electromagnetic Interference (EMI)
Because EM energy rapidly becomes more intense as one moves closer to the
transmitting antenna (source), the EM fields from hand-held radio sources (transceivers)
are of special concern. It is possible, unintentionally, to bring high levels of EM energy
very close to the powered scooter's control system while using these devices. This can
affect powered scooter movement and braking.
Therefore, the warnings listed below are recommended to prevent possible interference
with the control system of the powered scooter.

EMI Warning

transceivers (transmitters-receivers) with an antenna
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