Recommended separation distances between portable and mobile RF communications
equipment and the 901103
The 901103 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or user of the 901103 can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the 901103 as recommended below,
according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter (m)
Rated max. output
power of transmitter
(W)
150 kHz to 80 MHz
d
= (1.17)
80 MHz to 800 MHz
d
= (1.17)
800 MHz to 2.7 GHz
d
= (2.23)
0.01
0.11667
0.11667
0.23333
0.1
0.36894
0.36894
0.73785
1
1.1667
1.1667
2.3333
10
3.6894
3.6894
7.3785
100
11.667
11.667
23.3333
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d
in meters
(m) can be estimated 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.
Directions for use
General compliance and standards 81
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