INSTALLATION, OPERATION and MAINTENANCE MANUAL for...

INSTALLATION, OPERATIONand

MAINTENANCE MANUALfor

VERTEX MODEL 2.4 METERDUAL OFFSET ANTENNA

500-0432

Revision HSeptember 20, 1999

Prepared By:

VERTEX ANTENNA PRODUCTS DIVISION1104 Energy Drive, Kilgore, TX USA 75662

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662

PROPRIETARY NOTICE

All computer software, technical data, or other information pertaining to the equipment covered by thismanual is considered proprietary by Vertex Antenna Products Division. Such information is transmitted inthis manual or related documents for the benefit of VERTEX customers and is not to be disclosed to otherparties verbally or in writing without prior written approval of VERTEX. Additionally, this manual may not bereproduced in whole or in part without written consent from VERTEX.

H ECR 99-1156 09/20/99 CLW JDP CLS

G ECR 99-0838 06/14/99 JDP TMH DLB

F ECR 99-0140 11/01/98 BDC JDP CLS

E ECR 98-1152 07/15/98 JCH JCH JDP

D Rel. for Doc. Baseline only 07/09/98 SSM SMM CLS

C General Revisions 10/29/97 MXL MXL KDR

B Original Release 10/02/97 MXL MXL KDR

A Preliminary Release 08/28/97 MXL MXL KDR

REV. DESCRIPTION DATE WRITER CHECK APPR.

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 i

CAUTIONARY NOTICE

Although the manufacturer has attempted to detail in this manual all areas of possible danger to personnelin connection with the use of this equipment, personnel should use caution when installing, operating, andservicing this equipment. Care should be taken to avoid electrical shock, whether the hazard is caused bydesign or malfunction. The manufacturer is specifically not liable for any damage or injury arising from thetechnician’s failure to follow the instructions contained in this manual or his failure to exercise due care andcaution in the installation, operation, and service of this equipment.

PLEASE READ THE FOLLOWING PRECAUTIONS

This manual is intended as a general guide for trained and qualified personnel who are aware of the dangersof handling potentially hazardous electrical and electronic circuits. This manual is not intended to contain acomplete s tatement of all safety precautions that should be observed by personnel in using this or otherelectronic equipment.

WARNING

THE ELECTRICAL CURRENTS AND VOLTAGES ASSOCIATED WITH THIS EQUIPMENT, WHETHERSUPPLIED BY VERTEX OR OTHERS, ARE DANGEROUS. PERSONNEL MUST AT ALL TIMESOBSERVE SAFETY REGULATIONS.

The installation, operation, maintenance, and service of this equipment involves risks both to personnel andequipment and must be performed only by qualified personnel exercising due care. Vertex Antenna ProductsDivision shall not be responsible for injury or damage resulting from improper procedures or from the use ofimproperly trained or inexperienced personnel performing such tasks.

WARNING

ALWAYS DISCONNECT POWER BEFORE OPENING COVERS, DOORS, ENCLOSURES, GATES,PANELS, OR SHIELDS. ALWAYS USE GROUNDING STICKS AND SHORT OUT HIGH VOLTAGE POINTSBEFORE SERVICING. NEVER MAKE INTERNAL ADJUSTMENTS OR PERFORM MAINTENANCE ORSERVICE WHEN ALONE OR FATIGUED.

During installation and operation of this equipment, local building codes and fire protection standards must beobserved.

WARNING

IN CASE OF EMERGENCY BE SURE THAT POWER IS DISCONNECTED.

Do not remove, short-circuit, or tamper with interlock switches on access covers, doors, enclosures, gates,panels, or shields. Keep away from live circuits. Know your equipment and do not take risks.

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 ii

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE1.0 INTRODUCTION

1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 Basic Antenna Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2.0 INSTALLATION2.1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 Antenna Foundation and Pedestal Structures . . . . . . . . . . . . . . . . . . . . . . . . 2-12.1.2 Shipping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.1.3 Unpacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.1.4 Tools Recommended for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32.2.1 Pedestal Saddle Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42.2.2 Elevation Axis Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52.2.3 Back Spine Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62.2.4 Reflector Hex Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72.2.5 Feed Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-82.2.6 Elevation Strut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-102.2.7 Reflector Assembly Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-112.2.8 Reflector Ribs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-122.2.9 Reflector Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-132.2.10 Reflector Fastener Tighten Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-152.2.11 Rib Tightening Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-182.2.12 Elevation Strut Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-192.2.13 Subreflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-202.2.14 Feed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-222.2.15 Views of The Assembled Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-232.2.16 Positioning the Antenna on a Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

3.0 MAINTENANCE3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1.1 Mechanical Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.2 Antenna Surface Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.3 Electrical Device Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

LIST OF TABLES

TABLE DESCRIPTION PAGE

1 Parts List for 2.4 Meter Dual Offset Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

LIST OF FIGURES

FIGURE DESCRIPTION PAGE

1 Components of the 2.4 Meter Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32 Pedestal Saddle Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

3 Elevation Axis Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 iii

TABLE OF CONTENTS (Continued)

LIST OF FIGURES (Continued)

FIGURE DESCRIPTION PAGE

4 Back Spine Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65 Reflector Hex Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-76 Feed Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-87 Long Diagonal Brace & Turnbuckle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-98 Elevation Strut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-109 Reflector Assembly Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

10 Reflector Rib Identification Notches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1211 Reflector Rib Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1212 Rib Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1313 Reflector Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1414 Shim Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1515 Reflector Face Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1616 Reflector Position for Rib Tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1717 Elevation Strut Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1918 Subreflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2019 Reflector Diagonal Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2120 Feed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2221 Side View of Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2322 Front and Back Views of Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2323 Antenna Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2424 RF Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2525 Feed Port Polarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

LIST OF APPENDICES

APPENDIX DESCRIPTION PAGE

A Hardware Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

B Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

C Reporting Damages or Discrepancies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

D Mount Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 1-1

1.0 INTRODUCTION

1.1 General.

The VERTEX 2.4 meter dual offset antenna is designed to operate on various radio frequencies and tobe assembled easily in the field by the user. This antenna is composed of main reflector, subreflector,supporting structures, and pedestal mount head. Once properly assembled, this antenna will achievehigh gain and exceptional pattern characteristics.

It is very important to understand the entire installation procedure to avoid any mistakes that couldresult in permanent damage to the antenna or injury to personnel. Therefore, VERTEX stronglysuggests the antenna user reads this manual thoroughly before starting the installation and follow thesteps precisely. VERTEX disclaims any liability and responsibility for the results of improper or unsafeinstallation, operation and maintenance practices. Should any installation, operation or maintenancequestions arise that are not answered within this document, please contact:

Vertex Antenna Products Division1104 Energy DriveKilgore, Texas, USA 75662 Telephone: (903) 984-7811Facsimile: (903) 984-7597E-mail [email protected]

For current manuals, drawings and information regarding this antenna and available options, please visitour web site at http://www.vertexcomm.com/vad/24dpv/24dpvant.html.

1.2 Basic Antenna Warranty.

Vertex Antenna Products Division warrants the items ordered hereunder at the same time of shipmentto be free from defects in material, workmanship, and to conform with the contract specification.VERTEX's liability under this Warranty shall terminate one (1) year after date of shipment unlessotherwise noted in contract. Written notice of any defects shall be given VERTEX upon discovery andVERTEX shall promptly correct such defects by repair or replacement at its option, without charge.In no event, shall VERTEX's liability under this Warranty exceed the cost of repair or replacing suchdefective items and under no circumstances shall VERTEX be liable for special or consequentialdamages.

Specifically excluded from the terms of this Warranty are:

a) Defects or non-conformance caused by and resulting from improper installation, operation,maintenance or storage of the equipment.

b) Items of characteristically indeterminate life such as bulbs, fuses, etc.

Note: This warranty constitutes VERTEX's sole and exclusive liability hereunder and buyer'ssole and exclusive remedy for defective or nonconforming items and is in lieu of allother warranties, express, implied, or statutory (including the warranty ofmerchantability or fitness for a particular purpose).


2.0 INSTALLATION

2.1 Before You Begin.

2.1.1 Antenna Foundation and Pedestal Structure. Prior to installation of the antenna, the usershould have the antenna foundation and pedestal structure built. Site selection and foundation optionsare presented in Appendix B and Appendix D.

2.1.2 Shipment Inspection. The VERTEX 2.4 Meter Dual Offset Antenna is packaged in fivecartons. Once received, the antenna shipping cartons should be inspected for damage. See AppendixC for reporting damage.

Take inventory of parts. Prior to the installation process, it is recommended that components receivedbe compared to the Parts List for 2.4 Meter Dual Offset Antenna, Table 1. Carton #3 includes aHardware Kit that is packaged with an inventory list of the hardware. Should any part be missing orif damage is apparent, please refer to Appendix C, "Reporting Damages or Discrepancies". Table 1is a list of the VERTEX components, by carton, and in part number order.

2.1.3 Unpacking Instructions. Care should be exercised when uncrating and unpacking theequipment. Each carton should be inspected as it is opened. The contents of each carton should bechecked against the parts list to verify correct part numbers and quantities.

If a c la im for shipping damages is to be made, save the packing material, the carton and theaccompanying paperwork to substantiate the claim with the carrier. Notify VERTEX as soon aspossible. Do not return any part until authorization and shipping instructions are received fromVERTEX.

2.1.4 Tools Recommended for Installation. The VERTEX 2.4 meter antenna is designed to beassembled by two individuals, in the field, without special tools. The following list indicates the handtools that are recommended.

TOOL NAME INCH SIZE METRIC SIZE QTY. ! Wrench (open end, box end or socket) 7/16 12mm 2! Wrench (open end, box end or socket) 1/2 13mm 2! Wrench (open end, box end or socket) 9/16 15mm 2! Wrench (open end, box end or socket) 3/4 20mm 2! Wrench (open end, box end or socket) 15/16 24mm 2! Wrench (open end, box end or socket) 1-1/8 29mm 2! Adjustable Pliers (channel locks) 14" 36cm 1! Torque Wrench 5 - 600 lb-in 0.6 - 68 Nm 1! Torque Wrench 50 - 150 lb-ft 68 - 339 Nm 1! Adjustable Spud Wrench 15" 38cm 1! Awl 1/8" diameter 3mm diameter 1! Cordless Drill (must have a clutch) 1! Phillips Screwdriver No. 3 No. 3 2! Tape Measure 12 ft. 3 Meter 1! Step Ladder 8 ft. 2 Meter 1

Note: In the event these wrench sizes are unavailable, adjustable or crescent wrenches can besubstituted. Caution should be exercised if using metric wrenches to avoid hardware damageand prevent injury.


Table 1. PARTS LIST FOR 2.4 METER DUAL OFFSET ANTENNA

Part Description Wt. (Kg.) Part Number Qty. Carton

Diagonal Braces (Short) 0.7 100018 2 1

Diagonal Brace (Long) 0.9 100023 1 1

#1 Rib 2.5 100025 2 1

#2 Rib 2.5 100026 2 1

#3 Rib 2.5 100027 2 1

Hex Ring Weldment 18.2 100028 1 1

Reflector Skin Splice Plates 0.7 100032 2 1

Rib Bridge Beam (not shown in explanation drawing) 1.1 100218 1 1

Turnbuckle Assembly 1.4 100219 1 1

Lower Section Cross Pipe 10 100015 1 2

Elevation Strut Cross Pipe 10.1 100016 1 2

Haunch Plate 2.3 100017 1 2

Standard Mount Channel 0.7 100019 4 2

Subreflector Mount Plate 2.7 100022 1 2

Hex Plate 0.7 100029 1 2

Subreflector Bracket (Right Side) 1.1 100036 1 2

Subreflector Bracket (Left Side) 1.1 100037 1 2

Fine Azimuth Adjust Collar 2.5 100003 1 3

Elevation Fine Adjust Threaded Rod 0.3 100004 1 3

Saddle Mount 23.6 100005 1 3

Saddle Collar Clamps 0.9 100006 3 3

Elevation Strut "A"-Frame Plate 5.9 100008 2 3

Elevation Clamp Trunnion 1.8 100009 1 3

Elevation Clamp Sleeve 1.4 100010 1 3

Elevation Axis Pipe Weldment 13.6 100014 1 3

Standard Hardware Kit (not shown in explanation drawing) 11.6 100038 1 3

Azimuth Fine Adjust Collar 0.4 100062 1 3

Azimuth Fine Adjust Sleeve 0.5 100063 1 3

Elevation Pipe Strut 12.3 100007 1 4

Back Spine (Right Side) 13.4 100200 1 4

Back Spine (Left Side) 13.4 100201 1 4

Feed Boom (Right Side) 11.6 100202 1 4

Feed Boom (Left Side) 11.6 100203 1 4

Reflector Skin (two halves) 36.4 100030 1 5

Subreflector 5 100035 1 5

Shims (not shown in explanation drawing) (part of Hardware Kit) 0.5 N/A


2.2 Installation Procedures.

Note: a. Refer to Figure 1 during installation. This figure is an overall view of the antennaand can assist the installer with locating parts and understanding the relationshipbetween the components.

b. See Appendix A for hardware torque specifications. These values are forlubricated fasteners and apply unless otherwise indicated within a step. Allhardware threads should be lightly lubricated prior to assembly and final torquing.Any commercially available mineral or synthetic lubricant is acceptable, includingsoft wax, thin penetration oils, or automotive oil or grease.

Figure 1. Components of the 2.4 Meter Antenna


2.2.1 Pedestal Saddle Mount.

Note: When the term "hardware" is used, it includes a bolt, two regular flat washers, and anut, unless otherwise specified. Narrow flat washers will be used as noted.

Step 1. Assemble the azimuth fine adjust collar (100003) and a single saddle collar clamp(100006) around the pipe pedestal (customer furnished) with ½" x 2" hot dipgalvanized hardware (see Figure 2). Use narrow (1 / " [27mm]) diameter washers.1

16

Note: Torque Limit on collar bolts is 22 lb.-ft. However, leave bolts loose for now, as thecollar will need to be repositioned as assembly continues.

Step 2. Lift saddle mount (100005) onto pipe pedestal.

Step 3. Assemble and install the azimuth fine adjust mechanism (100062 & 100063) using½" and ¾" stainless steel nuts and hot-dip galvanized washers. The ¾" washersshould be the narrow (1½" [37mm]) diameter washers. Use washers on both sidesof the tangs extending from the saddle mount and azimuth fine adjust collar.

Figure 2. Pedestal Saddle Mount


2.2.2 Elevation Axis Pipe.

Step 1. Place elevation axis pipe weldment (100014) in the saddle of the mount (see Fig. 3).

Note : Position stop tabs as indicated in Figure 3.

Step 2. Bolt saddle collar clamps (100006) across the elevation axis pipe weldment (2 places)with ½" x 2" hot-dip galvanized hardware and loosely hand tighten. Use narrow (1 / "1

16[27mm]) diameter washers.

Figure 3. Elevation Axis Pipe


2.2.3 Back Spine Structure.

Step 1. Use ½" x 1½" hot-dip galvanized hardware to loosely bolt the right side back spine(100200) to the end cap of the elevation axis pipe weldment (see Figure 4).

Caution! It is possible to install the spine backwards. Refer to Figure 4 for proper direction.

Step 2. Repeat step 1 for left side back spine (100201) to the opposite end of the elevationaxis pipe weldment.

Note: All bolts through the back spines must be loose in order to assemble the next two

(2) components.

Step 3. Install the elevation strut cross pipe (100016) between the spine sections with 3/8"x ¾” stainless steel hardware. Lugs must be positioned as indicated in figure for theelevation strut installation. Hand tighten hardware only.

Step 4. Install the lower section cross pipe (100015) between the spine sections with 3/8" x¾" stainless steel hardware.

Note: All hardware is to be hand tightened only. Hardware will be fully tightened later in theinstallation process.

Figure 4. Back Spine Structure


2.2.4 Reflector Hex Ring.

Step 1. Install the hex ring weldment structure (100028) to the spine assembly with four (4)5/8" x 4½" hot-dip galvanized bolts, four (4) 5/8" hot-dip galvanized nuts, four (4) 5/8"hot-dip galvanized washers, and four (4) special side-cut (clipped) 5/8" stainless steelwashers (see Figure 5). The special side-cut stainless steel washers have a "flat" cutedge to fit against the inside web of the back spine channel. Refer to the figurebelow. A "T" is stamped on the hex ring weldment to indicate the top of the hex ring(see Figure 5).

Step 2. Loosen the ½" bolts at the saddle collar clamps (installed in paragraph 2.2.2, Step2) and raise the back spines to a vertical position. Re-tighten saddle collar clampbolts.

Note: Torque Limit on collar bolts is 22 lb. - ft.

Step 3. Tighten the four (4) 5/8" bolts at the spine to hex ring weldment. Use the step ladderto reach these bolts, if necessary.

Step 4. Tighten the eight (8) ½" bolts at the ends of the elevation axis pipe weldment.

Step 5. Tighten the sixteen (16) 3/8" bolts at the ends of the two cross pipe members. Usethe step ladder to reach the upper eight (8) bolts, if necessary.

Figure 5. Reflector Hex Ring


2.2.5 Feed Boom.

Note: All hardware installed in the next seven steps is to be hand tightened only, unlessotherwise specified. Hardware will be fully tightened later in the installation process.

Step 1. Attach the right (100202) and left (100203) hand feed booms to the lower ends of thespines with ½" x 2" hot-dip galvanized hardware (see Figure 6). Use narrow (1 / "1

16[27mm]) diameter washers. Leave bolted connection loose for now.

Step 2. Attach the haunch plate (100017) and one short diagonal brace (100018) to the spineand boom with 3/8" x ¾" stainless steel hardware. Use a 3/8" x 1" bolt at the haunchplate end of the diagonal brace.

Step 3. Attach the subreflector mount plate (100022) to the end of the feed boom elementsusing 3/8" x ¾" stainless steel hardware, in the top of the boom. Do not installhardware into the holes in the bottom of the feed boom and subreflector mountingplate. This hardware will be installed later.

Step 4. Attach two (2) standard mount channels (100019) to the top of the feed boom withlegs "down" using 3/8" x ¾" stainless steel hardware.

Figure 6. Feed Boom


Step 5. Install a long diagonal brace (100023) from the under side of the subreflector mountplate to the standard mount channel on the under side of the boom using 3/8" x 1"stainless steel hardware (see Figure 7). Be sure to install this brace on the bottomside of the boom. Place 3/8" x ¾" stainless steel hardware in the other hole in thebottom of the subreflector mount plate.

Step 6. Install the turnbuckle assembly in the back section of the feed boom (see Figure 7).Be sure to install the turnbuckle assembly on the top side of the lower flanges.

Step 7. On the lower side of the feed boom, install one standard mount channel (100019) withlegs of the channel "up," as illustrated in Figure 7, using 3/8" x ¾" and 3/8" x 1"stainless steel hardware.

Note: All hardware installed in paragraph 2.2.5, Steps 1 through 7, is still hand tight only.

Step 8. Tighten only the three (3) ½" hot-dip galvanized bolts and nuts at the left and righthand spl ice line connection between the spine and boom elements. (Hardwareinstalled in paragraph 2.2.5, Step 1.)

Figure 7. Long Diagonal Brace & Turnbuckle


2.2.6 Elevation Strut.

Step 1. Assemble the elevation fine adjust mechanism with the elevation clamp trunnion(100009) and elevation clamp sleeve (100010). Use the ¾" all-thread rod (100004),¾" nuts and narrow (1½" [37mm]) flat washers. Use ½" x 2½" hot-dip galvanizedhardware with narrow (1 / " [27mm]) diameter washers for the clamps. There will be1

16restr icted adjustment if the small bracket on the sleeve and trunnion are notpositioned correctly. Hand tighten only. Refer to Figure 8 below.

Step 2. Slide the elevation fine adjust mechanism onto the elevation pipe strut (100007) clampsleeve first, from the open end of the elevation pipe strut. Tighten one of the clampbolts enough to keep the mechanism on the pipe. The elevation fine adjustmechanism may be installed below (shown in Figure 8.) or above the elevation strut.

Step 3. Loosen the ½" bolts at the saddle collar clamps (installed in paragraph 2.2.2, Step2) and tilt the structure back into a horizontal position as in paragraph 2.2.3 or to anyposition to conveniently pin the elevation pipe strut.

Step 4. Pin the elevation pipe strut between the clevises of the elevation strut cross pipe(installed in paragraph 2.2.3, Step 3) using the ¾" x 5 ½" hot-dip galvanized bolt andhardware.

Note: This is a hinge pin and will be snug tight (30 to 40 ft-lb) only.

Figure 8. Elevation Strut


2.2.7 Reflector Assembly Position.

Step 1 Swing the elevation pipe strut away from the pipe pedestal and lower the back spineassembly until the elevation pipe strut is against the ground and the elevation strutcross pipe rests against the elevation pipe strut (see Figure 9).

Note: In this assembly position, the reflector assembly is inverted with the top of the hexring (100028) toward the ground.

Figure 9. Reflector Assembly Position


Figure 10. Reflector Rib Identification Notches

2.2.8 Reflector Ribs.

Step 1. Identify two (2) each of ribs #1 (100025), #2 (100026), and #3 (100027) by the notchesin the ends of the ribs, as shown in Figure 10.

Figure 11. Reflector Rib Positions


2.2.9 Reflector Assembly.

Caution! IT IS EXTREMELY CRITICAL THE RIBS ARE LOCATED CORRECTLY!

Step 1. Place the ribs on the hex ring weldment tabs (100028) in the positions indicated byFigure 11. From the rib side, insert ½" x 1¾" stainless steel shank bolts through theweb and tab, using hot-dip galvanized washers on both sides (leave loose). The #1ribs (100025) go at the top of the hex ring weldment (top of ring is noted by a labelindicating "TOP", see paragraph 2.2.4, Step 1.). The #3 ribs (100027) are positionedat the bottom side of the hex ring. The #2 ribs (100026) are positioned horizontallyopposite each other.

Step 2. Place the hex plate (100029) on the back of the ribs (see Figure 13). "Top" isindicated by a small notch in the hex plate. Orient this notch in the same directionas "Top" on the hex ring weldment. Loosely install one 3/8" x 1" stainless hardwareset per rib.

Note: If two holes are present in a rib, use the left hole for mounting. This plate can beinstalled with either side away from the ribs. However, one way will result in the plateappearing slightly rotated after installation.

Step 2. Place the rib bridge into location by inserting it through the gap between the two #2ribs at the center of the reflector. Install the rib bridge and hand tighten using ½" x1¾" stainless steel shank bolts, ½" stainless steel nuts, and ½" hot-dip galvanizedwashers (see Figure 12 below).

Figure 12. Rib Bridge


Step 3. Set the lower skin half (100030) on the ribs. This skin half is marked with a "B"following the serial number (see Figure 13).

Note: a. In this assembly position, the reflector assembly is inverted; hence the lower skinhalf is mounted on the upper ribs as shown in Figure 13.

b. Use an awl, if necessary, to gently work holes into alignment.

Step 4. Insert 1/4" x 3/8" truss head screws (bag may be labeled "Replacement for 1/4" x 5/8"screws") through the index holes (#1 & #5 screw circles counting away from center)of the reflector skin. Screw into the tapped holes in the ribs only until there is positivethread engagement. This will leave approximately 1/8" of thread showing between thescrew head and reflector surface. No washers or nuts are required. Start theremaining 1/4" x 3/8" truss head screws. Turn in only until there is positive threadengagement.

Note: Do not tighten any truss head screws until directed to do so.

Figure 13. Reflector Assembly

Step 5. Set the upper skin half (100030) on the ribs. This half of the reflector skin is markedwith a "T" for top. Start the 1/4" x 3/8" truss head screws as directed for the lowerskin half in step 4. These screws do not require washers or nuts.


2.2.10 Reflector Fastener Tightening Sequence.

Caution! THE FOLLOWING STEPS ARE SEQUENCE CRITICAL!

Note: At this point in the antenna installation, none of the reflector ¼" truss head hardwarehas been tightened.

Caution! Leaning on the reflector while tightening screws may lower the performance of theantenna by distorting the reflector surface. Do NOT lean on the reflector!

Step 1. Install the two (2) reflector skin splice plates (100032) behind the reflector flange with¼" x ¾" stainless steel hardware. Be sure to align the index holes on the reflectorflange with the index hole in the splice plate. Insert and hand tighten only thehardware for the two holes immediately on either side of the splice line. Seeenlargement in Figure 15.

Step 3. Place shims between the upper and lower skin halves. Place shims as indicated inFigure 14 (6 shims total).

Note: In the following steps the installer is directed to ensure a snug fit between the shimsand the reflector skin halves. A snug shim should "pull" slightly when removed, likea feeler gage, although its free, outer edge may drop down slightly. Also, the shimwill not exhibit side-to-side twisting.

Figure 14. Shim Placement


Step 4. While pulling together the two skin halves on one side of the reflector to create a snugfit between the skins and shims, tighten the outer four (4) truss head screws in the#2 ribs nearest the reflector skin splice plate locations. This is screw circle 8 and 9(see Figure 15).

Step 5. Tighten the four splice plate bolts (installed in Step 1) on the same side of thereflector.

Step 6. Repeat Steps 4 and 5 for the other side of the reflector. Check the shims closest tothe splice plates for proper fit by twisting side to side. If they are not snug, repeatSteps 4 through 6.

Figure 15. Reflector Face Pattern

Step 7. Loosen the four (4) truss head screws adjacent to each splice (tightened in step 4).

Step 8. While applying upward pressure on the "top" half of the reflector (still pointed towardthe ground) to ensure a snug fit between the skins and shims, tighten the truss headscrews on the #2 ribs starting at the center of the reflector and moving towards therim. Recheck all six shims for snug fit. If any shims are not snug, repeat Steps 4through 8 until satisfied.

Step 9. Hand tighten the ½" hardware connecting the #2 ribs to the hex ring tabs and the rib


bridge. Use a wrench to tighten hardware to specified torque.

Step 10. Tighten the truss head screws on the #1 ribs in a center-to-rim sequence.

Step 11. Tighten the truss head screws on the #3 ribs in the same center-to-rim sequence.Use the step ladder to reach the upper rows of screws. DO NOT STAND OR CRAWLON THE REFLECTOR SURFACE. Use the ladder if the last rows of screws cannotbe easily reached.

Warning! Do not over extend reach from ladder. This may result in potentially serious injuryor damage to the structure.

Step 12. Insert the remaining splice hardware (¼" x 3/4") on both sides of the reflector. It isalright to loosen the four bolts tightened in step 5 if necessary. Tighten all hardware.

Figure 16. Reflector Position for Rib Tightening


2.2.11 Rib Tightening Sequence.

Step 1. Raise the reflector until the rim is in a horizontal position (see Figure 16). If there issoft soil surrounding the installation site, place a firm object under the open end of theelevation pipe strut to support it. Secure the elevation pipe strut with a block or safetyrope to prevent it from sliding away from the pedestal and allowing the reflector todrop. Also tighten the saddle clamp bolts installed in paragraph 2.2.2, Step 2 tofurther prevent the reflector from dropping.

Note: Torque limit on the saddle clamp bolts is 22 lb-ft.

Step 2. Hand tighten the ½" bolts between the hex ring and the #1 and #3 ribs (hardwareinstalled in paragraph 2.2.9, Step 1 and paragraph 2.2.10, Step 2). Work in a circularpattern moving from one rib to the next adjacent rib, skipping the #2 ribs. During thefirst circular pass, tighten only the top bolt of each rib. On the second pass, tightenonly the bottom bolt. Finally, on the third pass check both bolts to ensure they arehand tight.

Step 3. Only after the bolts have been hand tightened in this sequence should a wrench beused to tighten the bolts. Follow the same three (3) circle patterns as in handtightening in Step 2.

Step 4. Hand tighten all the 3/8" hardware at the hex plate installed in paragraph 2.2.9, Step2. Tighten these bolts in a circular pattern.

Step 5. Use a wrench to tighten the 3/8" hardware in the hex plate. Follow the same circularsequence as the hand tightening in Step 4.

Note: All reflector hardware installed in paragraph 2.2.9 through 2.2.11 should be tight.


2.2.12 Elevation Strut Supports.

Step 1. Attach the elevation strut "A"-frame plates (100008) to the left and right hand sidesof the saddle mount with 5/8" x 6½" hot-dip galvanized hardware through both "A"-frame plates. Use the narrow (1.31" [33mm]) diameter washers. Leave bolts loose .

Step 2. Support the reflector and position the bolts on the elevation clamp trunnion betweenthe "A"-frame plates and install four (4) ¾" hot-dip galvanized flat washers and two (2)stainless steel nuts (see Figure 17). Hand tight only.

Step 3. Install the standard mount channel (100019) to the upper section of the back spinesusing 3/8" x ¾" stainless steel hardware. Tighten hardware to full torque.

Step 4. Tighten the three (3) 5/8" x 6 1/2" bolts at the elevation strut "A"-frame plates installedin Step 1.

Note: Normal torque, repeat torque pattern until all bolts are equal.

Step 5. Install remaining short diagonal brace (100018) to the back spines between theelevation axis pipe weldment and the elevation axis cross pipe using 3/8" x 1"stainless steel hardware.

Figure 17. Elevation Strut Supports


2.2.13 Subreflector.

Warning! In the next steps, prevent the antenna structure from free falling. Failure to doso may result in damage to the structure or serious injury to personnel.

Step 1. Loosen the saddle collar clamp bolts enough to allow movement again, then carefullyraise the reflector to a vertical rim position. As the reflector is raised, the center ofgravity will move over the elevation axis. To secure the antenna in this position, re-tighten the ½" bolts in the saddle collar clamps installed in paragraph 2.2.2, Step 2.and the ½" bolts in the elevation clamp trunnion installed in paragraph 2.2.6, Step 1.

Note: Torque limit on the saddle collar clamp bolts and the elevation clamp trunnion boltsis 22 lb. - ft. Repeat torque pattern until all bolts are equal.

Step 2 Install the left (100037) and right (100036) side subreflector brackets with 3/8" x ¾"stainless steel hardware (see Figure 18).

Step 3. Install subreflector (100035) with 5/16" x ¾" stainless steel hardware.

Step 4. Tighten bolts on subreflector brackets and subreflector (installed in Steps 2 and 3).

Note: When tightening hardware, hold the head of the bolt stationary with a wrench whileturning the nut to tighten the fastener. This will reduce marring painted surfaces.

Figure 18. Subreflector

Step 5. Locate the small tooling holes in the main reflector rim at the ends of the #3 ribs.Also locate the two (2) holes on horizontal center of the subreflector.

Step 6. Using the measuring tape, measure diagonally between holes, from the right side ofmain reflector to the left side of subreflector (see Figure 19). Repeat for the oppositediagonal. Adjust turn buckle in lower side of feed boom (installed in paragraph 2.2.5,Step 7) to balance measurements.


Step 7. Once the left and right diagonal measurements are equal to within 1/16" (2mm) ofeach other, tighten the lock nut on the turnbuckle.

Step 8. Recheck both diagonal measurements. If the measurements are no longer within1/16" (2mm) of each other, loosen the lock nut and repeat Steps 6 and 7.

Step 9. Tighten all haunch plates, standard mount channels, subreflector mount plate anddiagonal braces.

Step 10. Again check the diagonal measurements and repeat Steps 6 through 9 as necessaryto achieve the desired balanced measurements.

Figure 19. Reflector Diagonal Measurement


2.2.14 Feed Installation.

Step 1. Install as indicated in Figure 20 and the feed installation instructions provided with thefeed. Drawings shown here are typical, and may vary with specific feed models.

Figure 20. Feed Installation


2.2.15 Views of The Assembled Antenna

Note: The following figures depict the assembled antenna.

Figure 21. Side View of Antenna

Figure 22. Front and Back Views of Antenna


2.2.16 Positioning The Antenna On The Satellite.

Step 1. To position the antenna, the elevation and azimuth pointing angles must be known.These angles are specific for each site location and satellite.

Step 2. The elevation look angle can be easily found by placing an inclinometer on the topflange of the feed boom (as shown in Figure 23) and adding 8 degrees. Adjust theantenna in elevation by loosening the elevation clamp trunnion and elevation collarclamp bolts just enough to move the antenna until the inclinometer is at the desiredlook angle. Ensure that the elevation fine adjust mechanism is roughly at mid-travel.Re-tighten the hardware.

Figure 23. Antenna Positioning

Step 3. The azimuth pointing position can be roughly located using a compass.

Notes: a. When using a compass take note that true north and magnetic north are not thesame. The magnitude of difference between magnetic and true north depends on thesite location.


b. When the antenna is at the desired elevation look angle loosen the turning headand adjustment clamp on the pedestal pipe. Rotate the antenna by pushing on theback of the turning head. Once the desired angle is reached, clamp the turning headand adjus tment collar to the pipe. Make sure that the nuts on the azimuthadjustment rod are in mid-travel of the adjustment rod, so that the antenna can berotated in each direction.

c. 2 turns of the 3/4" nuts on the azimuth adjustment rod is equal to approximately1 degree of azimuth rotation.

Step 4. When peaking the antenna on the satellite, a spectrum analyzer should be used withthe following instructions.

a. Once the antenna is pointed at the approximate azimuth and elevation lookangles, move the antenna in azimuth by loosening the three 5/8" bolts on the saddlemount and rotating the nuts on the azimuth adjustment rod (scanning back and forth)to locate the maximum (greatest amplitude) transponder signal (see Figure 24). Oncethe maximum level is found, tighten the bolts on the turning head clamp.

Note: The antenna will not need to rotate more than plus or minus 1.5 degrees,from the maximum level, or the antenna may receive a signal from a differentsatellite.

b. With the antenna positioned at the maximum signal level in azimuth, adjust theantenna in elevation using the nuts on the elevation fine adjust mechanism and theinclinometer on the top of the feed boom. Repeat the same procedure as used in theazimuth to complete the maximizing of the signal level.

c. Repeat steps 4.a and 4.b above for azimuth and elevation until the peak signallevel is achieved.

Figure 24. RF Pattern


d. Once the antenna is positioned at the peak signal level, check and/or tighten thefollowing bolts and nuts.

! Elevation fine adjust mechanism (see paragraph 2.2.6, Step 1).! Azimuth fine adjust clamp bolts, (see paragraph 2.2.1, Step 1).! Elevation strut "A" frame bolts, (see paragraph 2.2.12, Step 4).! Saddle collar clamp bolts (see paragraph 2.2.4, Step 2).! Torque the elevation clamp trunnion nuts, (see paragraph 2.2.12, Step 2).

Step 5. When the antenna is being peaked to the maximum copolar signal level, it isnecessary to make sure that the antenna is on the main beam and not a side lobeof the signal (see Figure 24).

a. If the antenna is on a side-lobe the signal on the spectrum analyzer will diminishand not return or will decrease and return to a higher level as the antenna is rotatedin azimuth and/or elevation (see Figure 24).

b. If the signal diminishes and does not return, position the antenna back to theoriginal starting point in Step 5.a. Rotate the antenna in the opposite direction as inStep 5.a. The signal will decrease then increase to higher level on the spectrumanalyzer. The maximum increased signal level is the main signal beam.

c. Using this higher signal level repeat Steps 4.a and 4.b to get the antenna peakedon the transponder signal.

Step 6. When using a linearly polarized system, always check the feed polarity. Rotate thefeed to the optimum polarization setting after the antenna has been peaked on thesatellite.

a. When receiving true vertical polarization the receive port at the rear of the feedshould be in the horizontal, position see Figure 25. This corresponds to 0° on anangular scale relative to the feed support. In this configuration the antenna will receivetrue vertical polarization and transmit horizontal polarization. To achieve the oppositehand of polarization in both receive and transmit, the feed must be rotated 90° byloosening the feed clamps and rotating the complete feed 90°. This will correspondto 90° on an angular scale relative to the feed support.

Figure 25. Feed Port Polarization


b. In general, the incoming (Rx) and outgoing (Tx) signal polarization on the antennawill not always be perpendicular or parallel to the Earth's surface. Because of this itwill be necessary to optimize polarization of the antenna feed by aligning it to thesatellite polarization. This is achieved by carefully rotating the feed until the feed andthe satellite are in the same polarization.

c. Rotate the feed as required to receive and maximize the appropriate receiver signallevels.

Step 7. Once the polarity is set, secure the feed clamps. The antenna is now completelypositioned on the satellite and no more adjustments need to be made.


3.0 MAINTENANCE

3.1 General.

Proper maintenance will keep the antenna in good working condition and ensure the antenna will meetand exceed the designed life expectancy. A protective maintenance program should be followed thatroutinely cleans, inspects, lubricates and implements corrective measurement as required on allmechanical, structural, electrical and electronic components on the antenna. If there are anydiscrepancies beyond your ability to remedy, please contact VERTEX to acquire information on howto deal with these issues before you proceed.

3.1.1 Mechanical Maintenance . The antenna mechanical and structural parts such as reflector,pedestal, drive system deicing system (as appropriate), and hardware need to be periodicallyinspected in order to maintain the antenna in good operational status. Where there are noestablished wear limits, perform a visual inspection to locate worn or damaged parts to avoidthe improper functioning of the earth station.

3.1.2 Antenna Surface Cleaning. A periodic surface cleaning is recommended to remove excessaccumulation of dust, dirt and contaminants. A mild detergent solution, soft cloth and softbrushes can be used to clean the exterior of the antenna.

Localized areas exhibiting excessive corrosion or rust should be cleaned with a mild solventand lightly sanded or wire brushed. After the area is completely dry, a light coat of touch uppaint can be applied to the prepared area. Test the selected paint on an inconspicuous areato insure color and chemical compatibility. Paints containing Xylene and other solvents maysoften and dull the factory painted areas.

3.1.3 Electrical Device Cleaning. Always disconnect power and use lock out tags to preventshock hazards to personnel when servicing any electrical component. For electrical andelectronic parts, visual checking of the wires, cables, wave guides, switches, relays, etc. isrequired to correct any bad insulation or loose connections. To remove dust or loose foreignparticles on the electrical and electronic equipment, using vacuuming and soft brush or clothis recommended. Some electrical and electronic parts may require cleaning with specialcleaning solvents. In this case, the parts cleaned need to be dried completely before placinginto operation.

Revised 06/01/99

1/4 FLAT WASHER

5/16 HEX NUT 3/8 HEX NUT

3/4 HEX NUT1/2 HEX NUT 5/8 HEX NUT

5/16 FLAT WASHER 3/8 FLAT WASHER

3/4 FLAT WASHER1/2 FLAT WASHER 5/8 FLAT WASHER

5/8 SPECIAL SIDE

1/4 HEX NUT

CUT WASHER (CLIPPED)

REPRESENTS NARROW SERIES WASHER DIAMETER

NOTE:

A37.DWG

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 A-1

Appendix AHardware Chart

Use the following drawings to verify hardware sizes, as referenced in the manual. Torque values are listed witheach bolt size.

3/8 X 3/4 HEX

1/2 X 1 1/2 HEX CAPSCREW HDG22 LB-FT (29.8Nm)

5/16 X 3/4 HEX

1/4 X 3/8 PHILLIPS 1/4 X 3/4 HEX

1/2 X 1 3/4 HEX CAPSCREW SS20 LB-FT (27.2 Nm)

1/2 X 2 HEX CAPSCREW HDG22 LB-FT (29.8Nm) 1/2 X 2 1/2 HEX CAPSCREW HDG

22 LB-FT (29.8 Nm)

5/8 X 4 1/2 HEX CAPSCREW HDG43 LB-FT (58.3 Nm)

5/8 X 6 1/2 HEX CAPSCREW HDG43 LB-FT (58.3Nm)

3/4 X 5 1/2 HEX CAPSCREW HDG77 LB-FT (104.4 Nm)

A36.DWG

NOTE: TORQUE HARDWARE TO VALUE STATED UNDER FIGURE UNLESSOTHERWISE INDICATED. THESE ARE LUBRICATED VALUES.LUBRICANT MAY BE ANY WAX, OIL OR GREASE PRODUCT.

CAPSCREW SS30 LB-IN (3.4 Nm)


CAPSCREW SS3/8 X 1 HEX

100 LB-IN (11.3 Nm)CAPSCREW SS60 LB-IN (6.8 Nm)

PAN HEAD SS30 LB-IN (3.4 Nm)


1/4 X 1 HEX

Revised 08/30/99

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 A-2

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 B-1

APPENDIX B

Site Selection

There are several antenna mounting methods selected by users. There are some general requirements thatneed to be followed:

• The antenna should have a clear line of sight to the satellite arc, clear of any trees, buildings orother structures.

• If a ground mount is chosen, the site should be relatively level, free of underground obstructionsand not be subject to excessive rainfall runoff.

• If a roof mount is being selected, the roof structure should be designed or verified by a certifiedprofessional engineer to withstand the antenna load and the forces imposed by wind loads.

• Other mounting arrangements, such as, wall mounts and extended height pole mounts must bedesigned and verified by a certified professional engineer to insure performance and preventhazards to personnel.

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 C-1

APPENDIX C

Reporting Damages or Discrepancies

Some damage may occur to the parts during the shipping process. A claim should be filed with the carrierat the time of receiving the equipment or after completion of parts verification. Follow the "Reporting Loss orVisible Damage", "Reporting Concealed Damage", and "Reporting Missing Parts" when filing a claim withthe carrier.

• Reporting Loss or Visible Damage:

Make a note of any loss or damage on the freight bill or receipt signed by the carrier's agent. Failure to adequately claim such loss or damage may result in the carrier refusing to honor adamage claim. The form for such a claim can be acquired from the carrier.

• Reporting Concealed Damage:

The contents may be damaged in transit due to rough handling that may not show any externaldamage. For any of the concealed damaged discovered after unpacking the unit, make a writtenrequest for an inspection by the carrier’s agent, and file a claim with the carrier.

• Reporting Missing Parts:

After opening the shipment, an inventory of the parts should be completed. Check each itemreceived in the shipment. If there is any item missing, please notify VERTEX immediately bycontacting the Customer Service Manager.

• Returning:

Thorough consideration has been taken by VERTEX to ensure that all antenna items arrive in safeworking order. Occasionally, equipment may be received that is not in working condition due toreasons beyond our control. Upon review of the completed claim forms, VERTEX will determinedisposition as to return, repair and/or replacement. The return process can be expedited byfollowing this procedure:

Notify VERTEX Customer Service Manager by call or fax, giving a short description about themissing items or damaged components.

Tag or identify the defective equipment, noting the defect or circumstance. Pack the equipment ina sturdy shipping container with some protective packing materials, and return it to VERTEX.

When returning items to VERTEX, please include all available information regarding sales ordernumber, purchase order number, delivery date and other pertinent information to properly identifythe antenna. Also, please include the following information:

Your company name.

Your address with city, state and country.

Your telephone and fax numbers.

The individual's name VERTEX should contact.

VERTEX ANTENNA PRODUCTS DIVISION 500-04321104 Energy Drive, Kilgore, TX USA 75662 D-1

APPENDIX D

Mount Procedure

There are two basic mount approaches for small antennas: ground mount and roof mount. For groundmounts the user should consult a structural professional for the foundation soil structures and build aqualified antenna foundation. Vertex drawing 100220 may be requested to assist with foundation layout anddesign. For roof mount, some special considerations should be taken as follows:

The antenna system should be properly supported to provide transfer of all the antenna loads into the mainbuilding structures, sustaining all wind loading exerted on the antenna with the antenna self-weight.

The structural concepts that will be incorporated to achieve an effective frame configuration are as follows:

• At each foundation interface location, provide a direct load path for each load vector component.

• Where feasible, align axes of framing members to the vector direction of the applied loads. Thiscan reduce bi-axial bending and torsional effects.

• Eccentricity between the applied load vector and the framing member centroid can produce largetorsional forces. These torsional effects require more complex joint details to transfer forcesproperly and introduce increased structural deflection.

• Reinforcing members are required where the antenna structure is bolted to a beam. Thereinforcement should be designed to prevent flange bending and web crippling under concentratedloads.

• Use correct anchors in concrete surfaces.

• Avoid use of double-nutting (one nut top and one nut bottom of plate) to provide leveling. This willinduce undesirable anchor bolt bending conditions.

• Use friction type connection where it is possible to provide 100% load reversal capacity.

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