24
Recommended separation distances between portable and mobile RF communications
equipment and the LGT-235
The LGT-235 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the LGT-235 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the LGT-235 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)
150 KHz to 80 MHz
d = 1.2 √P
80 MHz to 800 MHz
d = 1.2 √P
800 MHz to 2.5 GHz
d = 2.3
√P
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 metres (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 80MHz and 800MHz, 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.