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Standards for Exposure to Electromagnetic Fields
9.3
Compliance with the Reference Values using the example of the
Wide Range Antenna WRA 7070
This example is only intended to show the basic relationship and the respective limit values. The respective limit values
for the individual antenna types can be found in chapter "11. Characteristics and specific Limits of the Antennas".
Occupational exposure
Exposure for general population
Occupational safety, trigger level,
wearers of passive implants (EMFV)*
General population; pregnant women,
wearers of active implants (1999/519/EG)
0,00307 √f
(f in Hz)
1,375 √f
(f in MHz)
90,3V/m (39,11dBV/m)
40,4V/m (32,12dBV/m)
The power fed into the WRA 7070 antenna is set such that the maximum radiated power is 2W ERP. This results in
values of the electric field in front of the antennas for the general population that are below the limit values in every
case of use.
90
80
70
60
50
40
30
20
10
0
0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
E Field (866 MHz)
E Field [ V/m ]
Distance in front of the antenna [m]
E-field in front of the antenna
Limit 40V
Limit 90V
