Chapter 3 • Pointing the antenna by using the DAPT3
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17.
Make a note of the following values shown on this screen. You will need this
information to point the antenna and complete the installation.
•
Azimuth
•
Elevation
•
Antenna tilt (0.74 m antennas only)
•
ODU polarization setting (LHCP, RHCP, HLP, VLP)
Note:
This is the true polarization setting. Ensure that the polarizer on
the radio matches this setting.
Pointing
This section describes each phase of the pointing process and the messages that
appear on the DAPT3 display screen during the procedure.
1.
You must connect the transmit IFL cable to the IDU side of the DAPT3. The
LNB side should remain open.
Figure 16: Installing the DAPT3
2.
When connected properly, the DAPT3 powers up automatically and the IFL
voltage on the LCD display, as shown below.
Note:
The voltage reading shown below is only an example. Actual voltage
may vary but should be greater than 22 VDC. If the voltage is too low,
the IDU LUI will display a state code of 2.1.2
To satellite modem
IFL cable
Label on rear panel:
IDU
Label on rear panel:
LNB
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