lion alcolmeter
®
500 Mk IV User Handbook
54
Recommended separation distances between portable and
mobile RF communications equipment and the 500
The 500 is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the
user of the 500 can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the 500 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 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 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.
3. Guidance Notes
1. When storing the 500 for long periods (greater than 1 month) or
during transport between sites the batteries should be removed.
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