30
User’s Guide
Recommended Separation Distances Between Portable and Mobile RF Communications Equi-
pement and the AMM190WTD System
The AMM190WTD system is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The user of the AMM190WTD system can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the AMM190WTD system as recommended below, according to the maximum
output power of the communications equipment.
Rated maximum output
power (W) of transmitter
Separation distance (m) according to frequency of transmitter
150kHz to 80MHz
d=1.17, p
80MHz to 800MHz
d=1.17, p
800MHz to 2.5GHz
d=2.33, p
0.01
0.12
0.12
0.23
0.1
0.37
0.37
0.74
1
1.17
1.17
2.33
10
3.70
3.70
7.37
100
11.70
11.70
23.30
For transmitters rated at a maximum output power not listed above, the recommended separation distance (d) in me-
ters (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
refl ection from structures, objects, and people.
Summary of Contents for AMM190WTD
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