otometrics MADSEN Alpha OAE, User Manual

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Recommended separation distances between portable and mobile RF communications equipment and Alpha OAE
The Alpha OAEis intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the Alpha
OAE can help prevent electromagnetic interference by maintaining a minimum distancebetween portable and mobile RF communications equipment (trans-
mitters) and the Alpha OAEas 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
80 MHzto 800 MHz
d = 1.2
800 MHz to 2,5 GHz
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 distance d in metres (m) can be estimated using the equa-
tion 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 MHzand 800 MHz the separation distancefor the higher frequency range applies.
Note 2 :These guidelinesmay not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and
people.
64 Otometrics - MADSEN Alpha OAE
App. 3 Technical Specifications