20
A. Fixed transmitter, such as: wireless (cellular / cordless) telephones and
terrestrial mobile radio base stations, amateur radio, AM and FM radio and
television broadcasting, the field strength in theory can not accurately
predict. In order to evaluate the electromagnetic environment of fixed RF
transmitters, the investigation of electromagnetic sites should be
considered. If the field strength of the place where the electric wheelchair is
measured is higher than the applicable RF compliance level, the electric
wheelchair shall be observed to verify its normal operation. If abnormal
performance is observed, the supplement may be necessary, such as
reorienting the direction or position of the electric wheelchair.
B. The field strength should be less than 3 V / m in the entire frequency
range 150 kHz to 80 MHz.
Table 206
Recommended isolation distance between Portable and mobile radio
communication equipment and electric wheelchair
Electric wheelchairs are expected to be used in radioactive radiation
harassment controlled electromagnetic environments. Depending on the
maximum rated output power of the communication equipment, the
purchaser or user can prevent the electromagnetic interference by
maintaining the minimum distance between the portable and mobile radio
frequency communication equipment (transmitter) and the electric
wheelchair by the following recommendation
The
maximum
rated output
power of
the
transmitter
W
Corresponding to the transmitter at different frequencies of
isolation distance/m
80 MHz
~
800 MHz
1.2
d
P
800 MHz
~
2.5 GHz
2.3
d
P
0.01
0.12
0.23
0.1
0.38
0.73
1
1.2
2.3
Содержание 7001R
Страница 1: ......
Страница 11: ...10 control the angle of the backrest backward forward...
Страница 36: ...35 Step3 the power wheelchair will be folded...
Страница 48: ...47...