Installation Instructions
Front-mounted Feeds
for 2 ft (0.6 m) Shielded Antennas
Bulletin 237084
Revision A

Description
These dual-polarized feeds are designed for mounting from the front side of the antenna. The antenna components (reflector, shield, and radome) are assembled for shipment and must be partially disassembled to install the feed.


Notice
The installation, maintenance, or removal of antenna systems requires qualified, experienced personnel. Andrew installation instructions have been written for such personnel. Antenna systems should be inspected once a year by qualified personnel to verify proper installation, maintenance, and condition of equipment.

Andrew disclaims any liability or responsibility for the results of improper or unsafe installation practices.
Read the Following Instructions
Thoroughly Before Assembly



1 Attach the antenna assembly to the mount according to the instructions given with the mount. Then remove the shield-radome assembly and rf gasket from the reflector. Caution: Do not attempt to remove the radome from the shield. The radome is properly tensioned when it is installed at the factory and may be damaged if improperly reinstalled in the field.

2 Apply a liberal amount of conductive grease to the groove in the hub mounting ring and insert the O-ring into the groove. Also apply grease to the mounting ring surfaces that contact the rear surface of the reflector. Then attach the hub mounting ring to the reflector with the 1/4-20 special flat-head bolts, flat washers, lock washers, and nuts. Uniformly tighten these bolts with a screwdriver and a wrench.

3 Apply the conductive grease to the mating surfaces of the feed hub and the hub mounting ring. Insert the hub of the feed into the hub mounting ring from the front of the reflector. Fasten the hub in place with the four 1/4-20 clamping bolts, flat washers, and lock washers. Adjust the feed polarization by rotating the hub with the clamping bolts loosened. The polarization arrows on the rear of the hub are parallel to the plane of polarization (E-vector).



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