Electromagnetic Interference (Emi) From Radio Wave Sources - Solax Mobility Mobie Owner's Manual

Electromagnetic interference (EMI) from radio wave sources

A powered vehicle 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 the powered vehicle to release its brakes,
move by itself, or move in unintended directions. It can also permanently damage the
powered vehicle's control system.
The intensity of the interfering EMI energy can be measured in volts per meter (V/m). Each
powered vehicle can resist EMI up to certain intensity. This is called its "immunity level". The
higher the immunity level is, the greater the protection is. At this time, current technology is
capable of achieving at least a 20 V/m immunity level, which would provide useful protection
from the more common sources of radiated EMI. This powered vehicle model as shipped,
with no further modification, has an immunity level of 20 V/m without any accessories.
There are a number of sources of relatively intense electromagnetic fields in the everyday
environment. Some of these sources are obvious and easy to avoid. Others are not apparent
and exposure is unavoidable. However, we believe that by following the warning listed below,
your risk to EMI will be minimized. The sources of radiated EMI can be broadly classified into
three types:
1. Hand-held portable transceivers (transmitter-receivers) with the antenna mounted
directly on the transmitting unit. Examples include: citizens band (CB) radios, "walkie-
talkie", security, fire, and police transceivers, cellular telephones and other personal
communication devices.
NOTE: Some cellular telephones and similar transmit signal 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 transmitter
(radio and TV broadcast antenna towers) and amateur (HAM) radios.
Solax Mobie Owner's Manual V1.0
II. Safety
Page 17