Technical Information
96
Table 8: Recommended Separation Distances Between Portable and Mobile RF Communications
Equipment and the ReDS System for Non-life-supporting ME Equipment and ME Systems
Rated Maximum
Output Power of
Transmitter (in
Watts)
Separation Distance According to Frequency of Transmitter (in Meters)
150 kHz to 80 MHz
Outside ISM Bands
d = 1.2 P
80 MHz to 800 MHz
d = 0.35 P
800 MHz to 2,500 GHz
d = 0.7 P
The ReDS System is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The user of the ReDS System can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the ReDS System as recommended below,
according to the maximum output power of the communications equipment.
0.01
0.12
0.035
0.07
0.1
0.38
0.11
0.22
1
1.2
0.35
0.7
10
3.8
1.1
2.2
100
12
3.5
7.0
NOTES:
1. At 80 MHz and 800 MHz, the higher frequency range applies.
2. These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
3. 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.
