Comen H3 - Page 79

EMC
III-8
Table 4
Recommended separation distances between
portable and mobile RF communications equipment and H3
H3 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of H3 can help prevent
electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and H3, 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
0.15 MHz to 80
MHz
Pd 2.1
80 MHz to 800
MHz
Pd 2.1
800 MHz to 2.7
GHz
Pd 3.2
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 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 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.