Antennas
Antennas
Antennas
Antennas
System Installation
System Installation
System Installation
System Installation
25-Jul-00
25-Jul-00
25-Jul-00
25-Jul-00
Page
Page
Page
Page 3-21
3-21
3-21
3-21
Max obstruction angle 2 degree
Figure 12 Inmarsat-C Antenna mounting near pole or funnel
3.3.5
Safety Distance for Antenna Units
The safety levels for the Thrane & Thrane INMARSAT-C Antenna
Units are based on the ANSI standard C95.1-1982 "American Na-
tional Standard Safety Levels With Respect to Human Exposure to
Radio Frequency Electromagnetic Fields, 300 kHz to 100 GHz"
This standard recommends the maximum power density at 1.6
GHz exposed to human beings not to exceed 5 mW/cm².
At the maximum radiated output power from the INMARSAT-C
Antenna (16 dBW EIRP) this corresponds to a minimum safety
distance of 30 cm.
In the standards from the European Telecommunication Standard
Institute (ETSI) concerning 1.5/1.6 GHz Satellite Earth Stations the
recommendation will be maximum 8W/m² (0.8 mW/cm²). This