iHealth KD-557BT Owner's Manual - Page 17

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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.
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
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
150 kHz to 80 MHz
transmitter
W
0,01
0,1
1
10
100
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.
Table 4
Recommended separation distances between
Separation distance according to frequency of transmitter
80 MHz to 800 MHz
d
1
2 .
P
0.12
0.38
1.2
3.8
12
第 16 页 共 16 页
m
d
1
2 .
P
0.12
0.38
1.2
3.8
12
800 MHz to 2,5 GHz
d
2
3 .
P
0.23
0.73
2.3
7.3
23