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User Manual
Airbridge cBTS3612 CDMA Base Station
occupational/controlled limits apply provided he or she is made aware of the
potential for exposure.
Uncontrolled limits are used for general public. General population/uncontrolled
exposure apply in situations is which the general public may be exposed, or in which
persons that are exposed as a consequence of their employment may not be fully
aware of the potential for exposure or can not exercise control over their exposure.
The exposure levels can be expressed in terms of power density, electric field
strength, or magnetic field strength, as averaged over 30 minutes for the general
public and 6 minutes for trained personnel. The exposure criteria is frequency
dependent, and a chart covering the range from 3 kHz to 100 GHz can be found in
NCRP No.86 (references IEEE C95.1-1991). Below are the limits.
Frequency Range
0.3-3.0
3.0-30
30-300
300-1500
1500-100,000
Frequency Range
0.3-3.0
3.0-30
30-300
300-1500
1500-100,000
Power
f
[
MHz
=
S
300
Limits for Occupational/Controlled Exposure
Electric Field
Strength (E) (V/m)
(MHz)
614
1842/f
61.4
--
--
Limits for General Population/Uncontrolled Exposure
Electric Field
Strength (E) (V/m)
(MHz)
614
842/f
27.5
--
--
density
S
[mW/cm
]
880
=
=
2
9 .
mW
/
cm
300
Appendix D Electromagnetic Radiation
Magnetic Field
Strength (H) (A/m)
.63
4.89/f
0.163
--
--
Magnetic Field
Strength (H) (A/m)
1.63
2.19/f
0.073
--
--
2
]
for
controlled
2
D-2
System Description
Power Density (S)
(mW/cm 2 )
(100)*
(900/f 2 )*
1.0
f/300
5
Power Density (S)
(mW/cm 2 )
(100)*
(180/f 2 )*
0.2
f/1500
1.0
area
at
880
MHz
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