System Operation Modes
System Operation
8-6
Ocean TRx™ 4500 Installation and Operations Manual
8.1.9
Stand-by Mode
Activating Stand-by Mode halts all axes in their current position.
To activate Stand-by Mode:
1. From the
Operation Screen
, open the
Mode
menu and select
Stand-by
. A
confirmation message box appears.
2. Click
OK (Enter)
. All axes are halted in their current position.
8.1.10
Manual Mode
Activating Manual Mode allows you to move the antenna manually for maintenance and
integration purposes, or to find a satellite when the system does not acquire it
automatically. Manual Mode can be configured.
8.1.10.1
Configuring Manual Mode
To configure Manual Mode:
1. From the
Operation Screen
, open the
Config
menu and select
Manual
from the
Operating Modes
sub-menu. The
Manual Mode
dialog box appears.
Figure
8-4: Manual Mode Dialog Box
2. Select the appropriate
Type
value:
Az_El
(Default) - incremental values are measured relative to the Antenna location at
the moment Manual Mode is activated. Azimuth angles reference elevation, rather
than Earth-horizon. In practical terms, this means that when taking an azimuthal
antenna cut, there is no need to translate the horizontal axis by the cosine of
elevation. However, when moving the azimuth angle by a considerable amount (more
than a few degrees), the elevation angle also changes.
Earth_Az_El -
absolute antenna angles are used – azimuth references Earth true
north, and the elevation references the horizon. If only the azimuth is moved, the
elevation remains constant.
SatArch -
the azimuth represents the angular displacement along the satellite arch,
in reference to the Greenwich Meridian. The azimuth and elevation change in
