Andrew 3.7-Meter Earth Station Antenna User Manual

Page 70

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Step 9

Step 10

Step 11

Feed System

70

Installation Procedures

Obtain the corresponding measurements from the remaining subreflector struts, and
adjust the subreflector mounting hardware (4 places) to achieve a maximum differential
of 1/16 inch.

Repeat the adjustment procedure performed in Steps 1-4, until all areas of the subre-
flector are uniform.

Adjust the jam nuts, and securely tighten the adjustment hardware.

Figure 3-57: Subreflector Alignment

You have now completed the subreflector assembly. By now, you can see that your
installation of the 3.7-Meter Earth Station Antenna is almost complete. The feed system
is the last phase of the base installation. NOTE: All antenna options (such as feed sys-
tems, motors, anti-icing, etc) possess installation instructions within the individual kits
contained in the shipment.

46.925”

47.2”

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