Optus S2 User Manual page 46

5 MAST ANTENNA ADJUSTMENT
Fixed Site Installation
Where a motorised mast antenna is used in a fixed site
installation, it is possible to enhance the performance of the
antenna by pointing the antenna directly at the satellite.
With the elevation adjustment set to a maximum, the antenna
beam behaves similar to a torch beam where the radiation
pattern fires out the end of the mast (End Fire Method).
The antenna should be mounted in a fixed position when the
maximum RSSI is determined. In this configuration, the gain of
the antenna is improved.
Emergency Operation
In an emergency situation where the vehicle cannot support the
motorised mast antenna in a vertical position (i.e: the vehicle has
rolled on its side), it is possible to dismount the antenna and
hold it by the spring pointing toward the satellite. The antenna
should be tuned to the maximum elevation (70º tuning for End
Fire Method) for the duration of the call. While the radiation
pattern is pointed to the end of the antenna, it is safe for a
person to hold the antenna by the spring.
80
5 ANTENNA ADJUSTMENT
MAP 1
MAP 2
AREA OF COVERAGE
ELEVATION NUMBERS
Adelaide
Alice Springs
Birdsville
Bourke
Brisbane
Broome
Canberra
Darwin
Eucla
Gove
Hobart
Kalgoorlie
Melbourne
Mt. Isa
Normanton
Perth
Port Hedland
Portland
Rockhampton
Sydney
Townsville
Woomera
81
43
50
52
52
58
43
48
53
41
59
39
35
44
56
60
30
38
42
62
50
63
46