ra e & h n
Thrane & Thrane
T
TT-3020B C p a ra
Capsat Transceiver
a i
Ma u
Installation Manual
5
30MAY95
P g
Page 5
15
2.4.6
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 National 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 on 30 cm.
To be sure that this distance is respected the Thrane & Thrane INMARSAT-C Antenna
Units are provided with a label declaring a minimum safety distance on 2 feet (61 cm).
In the future 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 tighter recommendations correspond to a minimum safety
distance on 60 cm at 16 dBW, so these future European recommendations are also
covered within the declared minimum safety distance on 2 feet (62 cm).
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