Antenna Adjustment - Optus S2 User Manual

5 CONFIGURATION ACCESSORIES
Figure – 7 External GPS Configuration
The port uses NMEA0183 protocol to store latitude and
longitude (only) in the standard GPS mailbox of the Optus
MobileSat S2. This can be polled by external parties to
determine the location of the Optus MobileSat S2. The
following NMEA commands are supported:
GGA: GPS fix data.
RMC: Recommended Minimum specific GPS Data.
Remote GPS Monitoring
When an inbuilt GPS is installed in the Optus MobileSat S2, a
monitor can be connected to the DATA & MAINTENANCE port
to view the GPS information. The connection is the same as
shown above except that the GPS position information comes
from within the Optus MobileSat S2.
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5

ANTENNA ADJUSTMENT

Unlike analogue or digital cellular phones, the Optus MobileSat
S2 Mobile Satellite Telephone is designed to work directly with
the Optus B-Series satellites, located above the equator, North
East of Australia.
For it to work correctly, there must be no physical obstruction
between your antenna and the satellite overhead. Generally
speaking, the satellite is in the north-east sky, in the direction of
the sun, mid morning. Your antenna should have a clear view in
all directions.
Figure 8 – Antenna Angle
Possible reasons for an obstruction to a clear view of the
satellite are:
• Bridges overhead
• Large trucks alongside
• Antenna is at an angle from vertical
• Nearby buildings
• Inside buildings (unless the antenna is near a window
which has line of sight to the satellite)
• Medium tree cover does not prevent operation of the phone.
WARNING:
THE MAST ANTENNA CANNOT WITHSTAND
IMPACTS AT SPEED. CARE MUST BE TAKEN TO
AVOID DAMAGING THE MAST ANTENNA.
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