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ELECTROMAGNETIC AND RADIO FREQUENCY INTERFERENCE (EMI/RFI)
WARNING! Laboratory tests have shown that electromagnetic and radio frequency waves can have an adverse
effect on the performance of electrically powered mobility vehicles.
EMI/RFI can come from sources such as cellular phones, mobile two-way radios (such as walkie-talkies), radio
stations, TV stations, amateur radio (HAM) transmitters, wireless computer links, microwave signals, paging
transmitters and medium- range mobile transceivers used by emergency vehicles. In some cases, they can
cause unintended movement or damage to the control system. Every electrically powered mobility vehicle has
an immunity (or resistance) to EMI.
WARNING! Be aware that cell phones, two-way radios, laptops, and other types of radio transmitters may cause
unintended movement of your electrically powered scooter due to EMI. Exercise caution when using any of these items
while operating your scooter and avoid coming into close proximity of radio and TV stations.
WARNING! The addition of accessories or components to an electrically powered mobility vehicle can increase its
susceptibility to EMI. Do not modify your scooter in any way not authorized by the manufacturer.
WARNING! The scooter itself can interfere with other electrical devices located nearby, such as alarm systems.
Important Information:
20 volts per meter (v/m) is a generally achievable and useful immunity lever, against interference from radio wave sources
(as of May 1994) (the higher the lever, the greater the protection);
The immunity level of this product is not known.
Powered Scooter Electromagnetic Interference (EMI)
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio (HAM) transmitters, two-
way radios, and cellular phones can affect powered scooter and motorized scooters. Following the warnings listed below
should reduce the chance of unintended brake release or powered scooter movement, which could result in serious injury.
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