Sea Tel ST88-21 C/Ku-Band TVRO, Инструкция по установке и эксплуатации

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Maintenance and Troubleshooting ST88-21 C/Ku-Band TVRO
13-24
Left arrow will rotate antenna mass down to the left in the Cross-Level axis ½ degree
Right
arrow will rotate antenna mass up to the right in the Cross-Level axis ½ degree
Up arrow will rotate antenna mass up in the Level axis ½ degree
Down
arrow will rotate antenna mass down in the Level axis ½ degree
When correct the Bubble should be as close to the center of the fluid as possible.
Step 6:
Press
ENTER
key to exit Remote Tilt Mode.
Step 7:
Verify Tilt Bias entered is within specifications.
From antenna:
•
Observe the bubble for approximately 3-5 minutes to ensure it remains centered.
Using DacRemP:
•
Select the reference sensor graph.
•
Verify the CL and LV display plots are steady and within 4 divisions of nominal. (Anything more than
4 divisions above or below red reference line should be of concern and troubleshooting is required)
Step 8: Save Level and Cross-Level Tilt Bias values.
Using the DAC2202 ACU Front Panel:
•
Press
DOWN
arrow or enter until you see “
REMOTE PARAMETERS”
window is displayed
•
Press RIGHT arrow and then press ENTER key (you will see a confirmation saying
‘
SAVED
’)
Using DacRemP:
•
Click icon on the Remote Command window. (Verify ^0087 is displayed in the “Last
Sent Command” window)
This saves the new tilt bias settings in the PCU. Reset or re-initialize the antenna to verify that the Level cage
is properly level with the new settings.
13.8.3. To Reset/Reinitialize the Antenna:
Pressing Reset on the ACU front panel does NOT cause a reset of the above decks equipment. To Re-initialize
the antenna from the
REMOTE COMMAND
window on the ACU:
1. Using the
LEFT/RIGHT
and
UP/DOWN
arrow keys set the Remote Command value to "
^0090
" and
press
ENTER
.
This resets the PCU on the antenna. The antenna will reinitialize with this command (Performs a similar
function as a power reset of the antenna).