Product specifications

Environmental Specifications
6-8 80-99240-1 Rev. D
Figure 6-3 DRA Temperature/Humidity Envelope
Icing/Freezing Rain/Snow
Any ice or freezing rain on the radome of the ODU will cause
degraded performance. Steps must be taken to ensure that ice
formation is kept to a minimum on the ODU.
Globalstar frequencies are attenuated by wet ice and snow
and OEMs must make provisions (such as installing the
antenna on a pole) to prevent snow buildup on the antenna.
Wet ice/snow must be restricted to a maximum thickness of
20 centimeters (8 inches)
by suitably mounting the antenna
(see Mounting Antennas at the Field Site on page 5-21).
0 5 10 20 30 40 50 60 70 80 90 100
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
85
90
PERCENT RELATIVE HUMIDITY
DRY BULB TEMPERATURE (degrees C)
OPERATIONAL AND NON-OPERATIONAL
ENVELOPE
CONSTANT 40C DEW POINT