Sea Tel 9711-92, Installation And Operation Manual

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9711-92 Ku-Band TXRX Installation Troubleshooting
17-7
•
The normal trace display for the Tilt Sensor, after performing remote tilt calibration, will be
±
4
divisions from the red reference line. Any trace line average plotted above this is of concern
and troubleshooting required. See below for a screen capture of an antenna that is Level in
both the Cross-Level and Elevation Axis.
•
The Cross Level Tilt display should plot on the red reference line when the sensor is level,
referenced to the horizon. It should decrease (plots below red line) when the antenna is tilted
to the left and increase (plots above red line) when tilted to the right. See below for a screen
capture of an abnormal CL trace Plot, it is an indication that the antenna that is either listed to
the right approx. 4 degrees or the PCU requires to much CL tilt bias.
•
The Level tilt display should plot on the red reference line when the sensor is level, referenced
to the horizon. It should decrease (plots below red line) when the antenna is tilted forward (EL
down) and increase (plots above red line) when tilted back (EL up).
•
The Azimuth display for the Home Switch will normally display a logic level high (plots directly
on Red reference line after clicking on the
button) when the home flag is NOT
engaged and changing to a logic level low when engaged. See below for a screen capture of an
antenna that was driven so that the Home Flag switch is engaged.