Invacare Horizon User Manual page 6

Horizon
3.Long-range transmitters and transceivers such as commercial broadcast transmitters
(radio and TV broadcast antenna towers) and amateur (HAM) radios.
Other types of hand-held devices, such as cordless phones, laptop
computers, AM/FM radios, TV sets, CD players, and cassette players,
and small appliances, such as electric shavers and hair dryers, so far
as we know, are not likely to cause EMI problems to your motorized
scooter.
Motorized Scooter Electromagnetic Interference
Because 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 very
close to the motorized scooter control system while using these devices. This can affect
motorized scooter movement and braking. Therefore, the warnings listed below are
recommended to prevent possible interference with the control system of the motorized
scooter.
Warnings
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur
radio (HAM) transmitters, two-way radios, and cellular phones can affect motorized
scooters. Following the warnings listed below should reduce the chance of unintended
brake release or motorized scooter movement, which could result in serious injury.
1.Do not operate hand-held transceivers (transmitters-receivers), such as citizens band
(CB) radios, or turn ON personal communication devices, such as cellular phones, while
the motorized scooter is turned ON;
2.Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming
close to them;
3.If unintended movement or brake release occurs, turn the motorized scooter OFF as
soon as it is safe;
User Manual
4