Topcon MC-4S, User Manual

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70
GENERAL INFORMATION ON USAGE AND MAINTENANCE
Recommended separation distance between
portable and mobile RF communications equipment and the MC-4S
The MC-4S is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the MC-4S can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the MC-4S
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
150kHz to 80MHz
d = 1.2
80MHz to 800MHz
d = 1.2
800MHz to 2,5GHz
d = 2.3
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 dis-
tance
d in metres (m) can be estimated using the equation applicable to the frequency of the transmit-
ter, where P is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer.
NOTE 1
NOTE 2
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
P P P