Winegard MVT-35B Manual download pdf (Page 69)

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8.4.3 - Calibrating Pitch and Roll

This procedure requires the use of a digital inclinometer that is accurate to at least +/-

0.1 degrees.

The system should be stowed. Enter the debug menu as described above.

1. The IDU screen should display “trk>”.

2. Hold down the control key (ctrl), press “t”, release both keys and then press enter.

a. The IDU screen should change to the capital “TRK>” prompt.

3. At the “TRK>” prompt type “tilt” and press enter.

a. The IDU screen should now display the “TILT>” prompt.

4. At the “TILT>” prompt type “mount [pitch] [roll]” and press enter.

a. [pitch] and [roll] are the values obtained using the inclinometer (see figures

below).

b. The command for the following example would be “mount -0.5 -0.4”

c. The IDU will display the message “Is the antenna stowed with p=[pitch],

r=[roll]? y/n”

d. Selecting “n” will cancel the calibration.

e. Selecting “y” will display the message “Calibration Successful”.

5. The pitch and roll should be verified. Type “att” and press return.

a. The IDU should now display the “ATT>” prompt.

6. Type “att” and press return.

a. Values for pitch, roll, and heading will now be displayed on the IDU screen.

b. Press any key to stop.

c. The pitch and roll should be +/- 0.2 degrees from the values entered.

Pitch – If the front of the

system is higher than the

rear, the pitch is a positive

value. The front of the

system is the antenna dish

and the rear is the

actuator.

Pitch – In this example the

front of the system is lower

than the rear, so the pitch

is -0.5 degrees.

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Winegard MVT-35B Manual Page 69