Gilat Satellite Networks
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Confidential and Proprietary Information
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53
Table 15: ACU Status messages and their interpretation
Parameter
Description
Idle
The ACU and antenna are in passive state (displayed during
starting-up process).
Initialization
The antenna performs initial adjustments.
Acquisition
Initial search for satellite.
Checking
Antenna stopped on a signal, the satellite is being verified.
Tracking
The correct satellite is found, the antenna is tracking the signal.
Signal drop
RF signal from the satellite is lost (probably due to an obstacle).
Scanning
The RF signal is lost for a longer time; the antenna is doing local
searching.
Sleeping mode
No satellite is found (as a result of acquisition); the antenna
enters sleeping mode to preserve energy.
Stopped
The ACU is in stopped state.
Wait for modem!
No communication with the modem; the ACU is waiting until the
communication is established.
Modem disconnect
The modem is disconnected during ACU operation.
Protection zone!
The transmission is muted because the antenna is entered
geographic area where the transmission is prohibited.
Tx disabled!
The transmission is disabled because of internal reason (signal
blockage, too big pointing error, etc.).
Invalid sat.!
The selected satellite is invalid (could be shown if the current
satellite is deleted from the database).
No satellite!
No selected satellite.
Database empty!
No satellites are entered in the database.
* Manual mode *
The ACU is in manual mode listening for both ACU and antenna
commands.
* Bypass mode *
The ACU is in bypass mode – all commands are retranslated to the
antenna (only the antenna commands are supported in this
mode).
Antenna error!
Antenna communication error (the antenna is probably not
connected).
Motor overload!
Overload of the azimuth motor in the antenna.
Elev. overload!
Overload of the elevation motor in the antenna.
Power failure!
The antenna power voltage is too low.
