3/13/2008
5
The sources of radiated EMI can be broadly classified into three
types:
1. Hand-held portable transceivers (transmitters-receivers) with
the antenna mounted directly on the transmitting unit. Examples
include: citizens band (CB) radios, “walkie talkies”, security, 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 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, so far, as we know, are not
likely to cause problems to your Powerchair.
