ViaSat Series 8345, Руководство по установке

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Chapter 3 - Operation
Chapter 3
Operation
3.1 General
This chapter contains procedures for satellite pointing, focal length inspection
and adjustment, and equipment required for transmit patterns.
3.2 Satellite Pointing Procedure
With the feed installed and the electronics operational, use the following
procedure for pointing at the desired satellite and peaking on the signal.
1. Refer to the Site Preparation manual to determine the required elevation and
azimuth angles.
2. Using an inclinometer or angle indicator held across the actuator bracket of the
hub, move antenna to the required elevation angle by turning the elevation
actuator on, until the required angle is obtained.
3. Rotate the antenna in azimuth until the satellite signal has been picked up.
4. Peak up the signal by jogging the elevation and azimuth actuators as necessary
until the signal strength is at maximum.
3.3 Focal Length Inspection And Adjustment
The following should be performed for the focal length inspection and
adjustment.
1. Measure C/N for antenna as it is.
2. Measure the feed location with respect to the reflector. This is measurement M.
Refer to Figure 3-1.
3. If M is less than 62.0 inches, follow the adjustment procedure.
42S199F 3-1