98-143492-B
Chapter 3: Assembly & start up
3-7
To stow the antenna
Assem
b
ly
&
s
ta
rt
u
p
.
Figure 3-10: On/Off button
The antenna is fully operational when the display says
ACQUISITION OK
and the field
MDM:
in the upper status line shows
NETOK.
If the system is not set to automatically begin pointing after power-on, then the user
may deploy using two alternative methods: using the keypad and display or the web
interface.
Auto-acquisition overview
The following points describe the typical auto-pointing algorithm:
1. Detect Mechanical Home Position for Az and El, which calibrates the encoders.
2. Calculate the Az/El look angles using the inputs from GNSS (GPS, Glonass etc.), Level
sensors, Compass, and inclinometer.
3. Set elevation and azimuth to the calculated look angle.
4. Proceed to maximum value on the satellite signal and achieve LOCK status.
The modem then enters the network and begins passing user traffic. This pointing
algorithm uses Cobham's proven TracStar technology that is currently deployed in
thousands of terminals around the world.
Note
As a safety precaution, the modem is automatically inhibited from transmitting
until the unit has locked on to the satellite and acquired the network.
3.4
To stow the antenna
The antenna must be set into the stow position before it can be packed into the transport
cases. After stowing the elevation and azimuth are zero degrees.
WARNING!
Be aware of pinch points while the antenna is being positioned,
deployed or stowed.
To stow the antenna using the keypad and display
1. Press
OK
to scroll to the
COMMAND
page and press
OK
again to access the page.
2. Press and
until
STOW
is selected, and press
OK
to initiate the selection.
3. Wait until the status shows
STOWED
.
