Sea Tel 9797B-76, Installation And Operation Manual

Page: 52 / 116

Maintenance and Troubleshooting 9797B-76 C/Ku-Band TXRX
7-14
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Cross-Level Axis physically moved CCW (down to the left.) and then CW (up to the right.)
Elevation Axis physically moved CW. (reflector slightly pushed up) and then physically moved CCW.
(reflector slightly pushed down.) At the end of chart recording shows
•
DishScan Drive turned Off, notice the lack of accumulated IVC errors.
7.7.5.
The DacRemP
DISPV
graph chart provides a means for monitoring the output of the 2 Axis Tilt Sensor and
the Home Switch sensor for diagnostic purposes. The Tilt sensor (located inside the Level Cage Assembly) is
the primary input for the antenna’s reference to the horizon (0° Elevation and 90° Cross-Level). While the
Home Switch Sensor (located at the antenna base) is used to calibrate the antenna’s position relative to the
vessels BOW.
Reference Sensor Monitoring
•
To view the reference sensors, select the graph chart.
•
This chart displays the output of the Tilt Sensor via two traces, CL (Cross Level), LV (Elevation) at a
fixed 1
º
/ vertical division, and the home flag logic level via a single trace, AZ (Azimuth).