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3 Antenna Unit Operation
The TracVision 4 system is easy to use. Antenna Unit
initialization and satellite acquisition is automatic and does not
require operator intervention.
To start up the TracVision 4 system:
1. Turn on the IRD and the television receiver.
2. Turn on the Antenna Unit.
Refer to your IRD user manual for complete operating
instructions for the IRD.
Tips to Get the Best Reception with TracVision 4
• A clear line of sight to the satellite is required to
ensure that the antenna can acquire and track the
satellite.
• The Antenna Unit is designed to rotate a full 720°
before coming to the end of its cable. If it does so,
the system conducts an automated cable unwrap.
This involves rotating the dish in the opposite
direction. During this process, your television
transmission will be frozen momentarily while
the cable unwraps and the antenna reacquires
the satellite.
Automated Operations
The system carries out a number of automated steps at startup.
For reference, these steps are:
1. Antenna Unit Initialization – The microprocessor
circuitry does a basic self-test of the hardware and
software associated with the antenna unit.
2. Satellite Search Modes – The system loads the
previously stored satellite location. If there is no
previously stored satellite location (as with a new
installation), a default position is loaded. The
system then begins a set of Search Modes to find
the satellite. The default position may be modified
via the maintenance port.
3-1
Antenna Unit Operation
54-0150 Rev. D
To minimize the time it takes the
antenna to acquire the satellite, do
not change the channel during the
startup process or cable unwrap.