第
16
页
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16
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such as re-orienting or relocating the KD-557BT.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 4
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the KD-557BT
The KD-557BT is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the KD-557BT can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the KD-557BT as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output
power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2,5 GHz
0,01 0.12 0.12
0.23
0,1 0.38 0.38
0.73
1 1.2 1.2
2.3
10 3.8 3.8
7.3
100 12 12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d in meters (m) can be determined using the equation applicable to the frequency of the transmitter, where
P is the maximum output power rating of the transmitter in watts (W) according to the transmitter
manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
P
d
2
.
1
P
d
2
.
1
P
d
3
.
2