Sea Tel ST94-21, Installation And Operation Manual

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Maintenance and Troubleshooting ST94-21 C/Ku-Band TVRO
13-24
back and left to right. You should wait at least 10 seconds between commands to allow time for sensor
to settle.
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:
2. Observe the bubble for approximately 3-5 minutes to ensure it remains centered.
Using DacRemP:
3. Select the reference sensor graph.
4. Verify the CL and LV displays 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:
5. Press
DOWN
arrow or enter until you see “
REMOTE PARAMETERS”
window is
displayed
6. Press RIGHT arrow and then press ENTER key (you will see a confirmation
saying ‘SAVED’)
Using DacRemP:
7. 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:
7. 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).
EAR Controlled - ECCN EAR99