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Installation, Operation and Maintenance
Type ES76( )
7.6-Meter Earth Station Antenna
Telephone: 708-349-3300 Customer Service, 24 hours: U.S.A. • Canada • Mexico: 1-800-255-1479
FAX (U.S.A.): 1-800-349-5444 U.K.: 0800 250055 • Republic of Ireland: 1 800 535358
10500 West 153rd Street
26 September, 2006
Internet: http://www.andrew.com Other Europe: +44 1592 782612
Orland Park, IL U.S.A. 60462
Copyright © 2005 by Andrew Corporation
Table of Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction Proprietary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Information and Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Notice . . . . . . . . .
7.6-Meter Earth Station Antenna Like all Andrew earth station antennas, the 7.6-Meter Earth Station Antenna provides Introduction high gain and exceptional pattern characteristics. The electrical performance and excep- tional versatility provides the ability to configure the antenna with your choice of linearly- or circularly-polarized 2-port or 4-port combining network. That versatility is provided at the time of initial purchase, as well as in the future, as your satellite communication requir
The technical data contained herein is proprietary to Andrew Corporation. It is intended Proprietary Data for use in operation and maintenance of Andrew supplied equipment. This data shall not be disclosed or duplicated in whole or in part without express written consent of Andrew Corporation. Information and Andrew Corporation provides a world-wide technical support network. Refer to the tech- Assistance nical assistance portion of this this manual for the contact numbers appropriate to your lo
How to Use This Manual The scope of this manual is intended to provide station personnel with the base installa- Overview tion, operation, and maintenance requirements necessary for a 7.6-Meter C-, X- or Ku- Band Earth Station Antenna. This manual provides a convenient reference for autho- rized operator/service personnel requiring technical information on general system or specific subsystem equipment. The tables and figures presented in this manual are used as communication aids for the instal
Getting Started The installation, operation, and maintenance of the 7.6-Meter Earth Station Antenna Overview requires qualified and experienced personnel. Andrew installation, operation, and main- tenance instructions are illustrated for such personnel. Additionally, the antenna should be inspected by qualified personnel to verify proper installation, maintenance, and con- dition of equipment as described in Preventive Maintenance. The basic equipment and accessories are either manufactured or d
NOTE: Failure to follow an installation procedure could result in damage to equipment or personal injury. Additional warnings will be displayed throughout this manual for your awareness. These warnings can be identified in warning boxes as shown in the following sample. Andrew disclaims any liability or responsibility for the results of improper or unsafe installation, operation, or maintenance practices. Andrew supplies all appropriate hardware/parts required for the installation of your 7.6- R
Upon receipt of your order, the shipment should be verified to ensure that all parts have Parts Verification reached your site. This process should occur before the installation process begins. Andrew Corporation thoroughly inspects and carefully packs all equipment before ship- ment. If you find that there are missing components, please refer to page 9 for step-by- step instructions on how to properly report the equipment loss. When you have received your order, verify that all parts contained
Andrew Corporation tries to ensure that all items arrive safe and in working order. Returning Occasionally, despite these efforts, equipment is received which is not in working condi- Equipment tion. When this occurs, and it is necessary to return the equipment to Andrew Corporation for either repair or replacement, return can be expedited by following the procedure listed below: Call the Andrew Customer Service Center and request a Return Material Authorization Step 1 (RMA) number, as well as
Installation Procedures Overview This section provides installation procedures for the 7.6-Meter Andrew Earth Station Antenna. The installation procedures include instructions on the following antenna com- ponents: • Mount • Reflector-to-Mount Assembly • Reflector • Subreflector • Enclosure • Feed System (C-, X- and Ku-band) Foundation Before beginning the installation process on the ground mount assembly, ensure that Preparation the foundation has been prepared. Foundation specifications are pr
A-325 Tensioning During the installation process, there are several references to the A-325 hardware ten- sioning procedure. The A-325 hardware must be properly tensioned to avoid slippage between bolted surfaces under high loads. Slippage can cause the corresponding assembly to move, causing antenna misalignment. When designated, the A-325 hard- ware should be tightened according to the following tensioning procedure. NOTE: Tensioned bolts are for final connections only and should not be loosen
The three-point mount is an elevation-over-azimuth mount optimized for geostationary Tripod Ground Mount Assembly satellite applications. The mount enables continuous elevation adjustment from 0 to 90°. Azimuth adjustment is ±90° and divided into three 120° ranges with 30° overlap. Follow the subsequent procedures for proper installation of tripod ground mount assembly. Azimuth Beam Assembly All ground mount hardware is type A-325. Lubricate all A325 bolt threads with supplied Step 1 stick wax.
Support Legs Assembly Attach 201327A joint assembly to 201313A beam assembly as shown in Figure 5. Step 1 Attach 200083 angles to 201313A beam assembly as shown in Figure 5. • Use 7/8 x 2-1/4 in (57 mm) bolts and nuts for each connection Figure 5 Attach 200088A joint assembly to 201313A beam assembly as shown in Figure 6. Step 2 • Use 7/8 x 2-1/4 in (57 mm) bolts and nuts Figure 6 13 Installation Procedures
Step 3 Raise 201313A beam assembly to upright position and attach 201315 supports to 201327A joint assembly as shown in Figure 7. • Use 7/8 x 2-1/4 in. (57 mm) bolts and nuts. • Insert bolts from 201327A joint assembly to supports. • Supports should be installed back-to-back with the flat of angle facing upwards. • Tighten supports until assembly can support itself. Figure 7 Step 4 Attach 201301/201302 rear pad assembly to 201315 supports as shown in Figure 8. • Use 7/8 x 2-1/4 in. (57 mm) bolts
Attach 201314 supports to 201301/201302 rear pad assemblies and 200884 joint Step 5 assembly as shown in Figure 9. • Use 7/8 x 2-1/4 in. (57 mm) bolts and nuts • Insert bolt from inside of joint assembly to outside of support • Supports should be installed back-to-back with the edges forward and the flats of angles facing rear Figure 9 Attach 201317 supports between angle pairs as shown in Figure 10. Select correspond- Step 6 ing mounting holes so that 201317 supports are parallel to 201313A bea
Panning Frame Assembly Attach 201487 panning frame to 221384 azimuth pivot assembly as shown in Figures 11 Step 1 and 12. • Use 7/8 x 2-1/4 in. (57 mm) hardware • Bolts should connect from panning frame to pivot assembly Figure 11 Figure 12 16 Installation Procedures
Attach 221608 joint assemblies to panning frame as shown in Figures 13 and 14. Step 2 • Use 7/8 x 2-1/4 in (57 mm) hardware • Insert bolts from panning frame to joint assembly Figure 13 Figure 14 17 Installation Procedures
Attach 201316 support pairs to 221608 joint assemblies as shown in Figure 15. Step 3 • Place supports back-to-back with edges out and flat of angle inward • Install 45967 spacer at midpoints of support pairs • Use 7/8 x 2-1/4 in (57 mm) hardware for each connection Figure 15 Attach 221345 azimuth pivot assembly to 201316 support pairs. Attach 201596 mount- Step 4 ing plates to 201458 azimuth pivot assembly tab as shown in Figure 16. • Use 7/8 x 2-1/4 in (57 mm) hardware for each connection • In
Step 5 Attach 201770 plate connecting 201484/201484-2 extension assembly to 201487 pan- ning frame as pictured in Figure 17. • Use 7/8 x 2-1/4 in (57 mm) hardware • Insert bolts from inside panning frame assembly Figure 17 Attach 201488 outrigger plate to opposite end of 201487 panning assembly. Attach Step 6 201481/201482 supports to outrigger plate as shown in Figure 18. • Use 7/8 x 2-1/4 in (57 mm) hardware • Insert bolts from supports to the outrigger plate Figure 18 19 Installation Procedur
Attach second 201488 outrigger plate to 201487 panning frame assembly as shown in Step 7 Figure 19. • Use 7/8 x 2-1/4 in (57 mm) hardware • Insert bolts from inside assembly to outrigger plate Figure 19 Attach 221721 elevation axis assembly to 201487 panning frame assembly and 221608 Step 8 joint assemblies as shown in Figures 20 and 21. • Use 7/8 x 2-1/4 in (57 mm) hardware • Insert bolts from elevation axis assembly to panning frame assembly and joint assem- bly Figure 20 20 Installation Proce
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