Sea Tel ST88-21 C/Ku-Band TVRO, Installation And Operation Manual

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Setup – Targeting ST88-21 C/Ku-Band TVRO
8-2
8.3. EL TRIM
Elevation trim offset parameter is entered in tenths of degrees. Adjusts display to correct for antenna alignment errors
or imbalances in the antenna system. Increase number to increase display. Refer to “Optimizing Targeting” in the
Setup section of your antenna manual.
To update: While in the EL TRIM sub-menu, press the LEFT arrow key to bring the cursor under the ones digit. Press
the UP or DOWN arrow key to increment or decrement the selected digit. Minus values are entered by decrementing
below zero. Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify.
When you are finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
Continue with Azimuth trim, then re-target the satellite several times to verify that targeting is now driving the
antenna to a position that is /- 1.0 degrees of where the satellite signal is located.
8.4. AZ TRIM
Azimuth trim offset parameter is entered in tenths of degrees. Offsets true azimuth angle display to compensate for
installation alignment errors when used with Ships Gyro Compass input reference.
Azimuth Trim does not affect
REL azimuth reading
. Increase number to increase displayed value. Refer to “Optimizing Targeting” in the Setup
section of your antenna manual.
To update: While in the AZ TRIM sub-menu, press the LEFT arrow key to bring the cursor under the ones digit. Press
the UP or DOWN arrow key to increment or decrement the selected digit. Minus values are entered by decrementing
below zero. Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify.
When you are finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
Then retarget the satellite several times to verify that targeting is now driving the antenna to a position that is within
+/- 1.0 degrees of where the satellite signal is located.
8.5. Save New Parameters
Parameters that have been changed are only temporarily changed until they are SAVED. If changes are made and not
stored, they will still be effective but will be lost when power is removed or the RESET key is pressed. Simultaneously
press, and quickly release the LEFT and RIGHT arrow keys to access “SAVE NEW PARAMETERS” directly from any other
menu display. Verify that the change(s) you have made is/are correct and then select “SAVE NEW PARAMETERS”.
Press UP arrow and then ENTER to save any recent changes into the ACUs NVRAM for permanent storage.