Chapter 2 • Pointing the antenna
30
1037663-0001 Revision A
Troubleshooting
The procedures above outlines the basic pointing process. Should
the DAPT display an error message or if you receive unexpected
results, use the information in Table 4 below to help you diagnose
and resolve the problem. If following the procedures outlined
below does not resolve the problem, contact Installer Support.
Table 4: DAPT display messages
Symptom
Indication
Corrective Action
DAPTcomm
Down
Display on DAPT when the DAPT is internally
in a state where communication with the
satellite modem should have already been
established, or had been established and was
lost for more than 5 seconds. If the DAPT is
unable to establish communication with the
IDU, DAPTcomm Down appears on the display.
If the DAPT remains in this state, reboot the
IDU.
Permanent
“COMM Startup”
message
IDU is not in pointing mode.
Advance
button
was been pressed before submitting the
installation parameters.
At the LUI, verify that the IDU is in pointing
mode (refer to Figure 6 on page 12). If the
IDU is not in pointing mode, repeat steps
Entering installation parameters
page 8. If the DAPT does not display the
SQF reading (SQF<>sqf) after a few
seconds, press the
Advance
.
Permanent
“Logging
VoltMeas”
message
Cables on the DAPT are not connected
properly.
Reconnect the cables to the DAPT in
accordance with the connector labels on
the DAPT rear panel.
SQF does not go
higher than 1
• Circular polarization setting is incorrect.
• Installation parameters incorrect.
• No Rx cable connected between DAPT and
LNB, or bad cable used.
• Set the polarization to LHCP or RHCP as
indicated on the Terminal Pointing Info
screen (Setting for ODU Polarization).
• Go to “Modify Installation Parameters”
under “Advanced Configuration and
Statistics” and use the Installation
Reference Sheet to make the appropriate
corrections.
• Connect/replace the Rx cable between
DAPT and LNB.
Low SQF
indication
Incorrect installation parameters entered
If incorrect parameters were entered, the
modem could be installed in the wrong
downlink cell. Go to “Modify Installation
Parameters” under “Advanced
Configuration and Statistics” and use the
Installation Reference Sheet to make the
appropriate corrections.
“Center 2”
significantly lower
than “Center 1”
(more than 20
points apart)
Squinter is still on the feed horn.
Remove the squinter from the feed horn
and verify the new Center 2 reading in the
DAPT display.
Содержание HughesNet Ka-band
Страница 1: ...1037663 0001 Revision A March 26 2008 Ka Band Antenna Pointing Guide ...
Страница 4: ... Contents iv 1037663 0001 Revision A ...
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Страница 8: ... Tables viii 1037663 0001 Revision A ...
Страница 14: ...Chapter 1 Introduction 6 1037663 0001 Revision A ...
Страница 40: ...Chapter 2 Pointing the antenna 32 1037663 0001 Revision A ...
Страница 42: ... Acronyms and abbreviations 34 1037663 0001 Revision A ...