iNetVu™ Service Manual Page 67 of 109
VII. Go to Maintenance.
VIII. Verify that the Pot Zero and Pot Factor in the Polarization
Parameters match the following table. These are the default values
that your system should be operating with.
Fig. 25: Polarization Potentiometer Parameters
IX. Restore to default values if required and click Send PL. Click Yes
when asked to save to the EPROM.
X. Verify Polarization Angle again.
e. Set Elevation to 25.0
f. Set both Azimuth and Polarization to 0.0.
g. Click Deploy Dish to raise the dish.
h. Set Duration to 50.
i. Set Speed to 9
j. Click Polarization CW. The dish should move in small increments and the
Polarization Angle will change. This indicates normal operation.
8) To calibrate:
g. Ensure there is sufficient clearance for the dish to move and rotate.
h. Go to Maintenance.
i. Click Calibrate Polarization.
j. When calibration process is complete, go to Advanced Controls.
k. Click Find Satellite.
l. When the system has found and locked on satellite, click Calibrate
Target. This concludes the calibration process.
9) Click Stop in Advanced Controls to halt all operations.
10) Manually rotate the dish CW until it stops. Verify that the Polarization Angle is:
A1200: -90 + 2
A740/A980: -70 +
2
11) Manually rotate the dish CCW until it stops. Verify that the Polarization Angle is
+90+2
A1200: +90 + 2
A740/A980: +70 + 2
12) Rotate the dish back to stow position.
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