Fcn 93: Antenna Type - Optus S2 User Manual

FCN 93: ANTENNA TYPE

6
FCN 9 3
Antenna Type/Tracking
+
or - Change Tracking Status
STO
SAVE AND EXIT
CLR
EXIT without saving
This function displays the antenna type that is connected
to the Optus MobileSat S2 antenna port. This is a read-only
screen.
Only MobileSat authorised antennas are designed to operate
with the Optus MobileSat S2 unit. If the transceiver does not
recognise the antenna (display shows UNKNOWN) then the
standard transceiver will not attempt to make or receive calls.
To Display Antenna Type
FCN 9 3
Antenna description is
displayed.
Change Mode
+
or - toggles between
settings for motorised mast or
marine antenna.
The display flashes, showing the mode has been changed but
not saved.
SAVE and EXIT
Save the setting and EXIT.
STO
EXIT
CLR
Return to previous screen.
FCN 93
S72 MAST
TRACK: Off
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FCN 93: ANTENNA TYPE
6
Motorised Mast Antenna
+ or - toggles between 'ON' and 'OFF'. When the
tracking is on, the mast will periodically step up one
adjustment and also down one ajustment to determine if the
signal is better either side of its current alignment. If this is
the case, then the antenna will maintain the optimum
alignment until the next test is performed.
KVH Marine Antenna
FCN 93 provides four tracking options for the KVH Marine
Antenna.
Manual – the user can point the antenna at the Satellite using
FCN 91. Once pointed, the KVH marine antenna will maintain
optimum RSSI using the KVH gyro compass and stabilised
platform operation.
Dither – after searching and finding the Satellite Signal, the
transceiver commands the antenna to dither in order to
maintain the optimum signal. (This is the operation used in
all previous versions of transceiver software)
GPS – The transceiver uses GPS information to calculate the
azimuth and elevation to point to the satellite. The azimuth
and elevation commands are sent to the antenna to point
directly at the satellite (NOTE: the transceiver must have a
GPS input for this mode).
GPS + Dither – Same as GPS operation, but if there is no valid
GPS position available, the antenna control will revert to
dither mode.
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