Feed System - Andrew 3.7-Meter Earth Station Antenna Installation And Operation Manual

Step 9
Step 10
Step 11

Feed System

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.
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"
Figure 3-57: Subreflector Alignment
70
Installation Procedures