Attachment_1_-_8345-Antenna_Manual.pdf

PDF 3 MB Posted

Attached to
Design/Build Missile Warning Facility located at Naval Station Sigonella, Sicily.
Solicitation number
N3319116R1004
Issued by

About this file

N33191-16-R-1004 0002 Attachment 1 - 8345 Antenna Manual

View the file

Other files

Show all 13

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

Series 8345 Prime-Focus Manual Antenna

Installation Manual

Manual 33N074M July 2008

Notice

All Rights Reserved

The information contained in this document is proprietary to Superior Satellite Engineers, Inc. This document may not be reproduced or distributed in any form without the consent of Superior Satellite Engineers, Inc.

The information in this document is subject to change without notice. SSE, Inc.

assumes no responsibility for any errors that may appear in this document and does not warranty any specific application.

Any product names mentioned herein are used for identification purposes only, and may be trademarks and/or registered trademarks of their respective companies.

In all correspondence with SSE, Inc. regarding this publication, please refer to the Manual Part No. on the title page.

Copyright ® 2007 Superior Satellite Engineers, Inc.

All rights reserved. No part of this book may be reproduced in any form or by any means without permission in writing from SSE, Inc.

Table of Contents

33N074 Rev M iii

Table of Contents

Table of Contents ........................................................................................ iii

List of Figures ............................................................................................. v

List of Tables.............................................................................................. vi

Safety Summary......................................................................................... vii

General Information and Safety .................................................................. 1-1

1.1 Introduction......................................................................................................1-1

1.2 Safety Precautions ............................................................................................1-1

1.3 Equipment Description .....................................................................................1-3

1.4 Equipment Application.....................................................................................1-4

1.5 Standard Features ..............................................................................................1-4

1.6 Options.............................................................................................................1-5

1.7 Specifications....................................................................................................1-5

Antenna Site Selection ............................................................................... 2-1

2.1 Criteria For Antenna Site Selection...................................................................2-1

2.2 Determining Aiming Coordinates......................................................................2-1

2.3 Verifying Operational Clearance .......................................................................2-2

2.4 Verifying Clear Line-of-sight ............................................................................2-4

2.5 Verifying Absence of Signal Interference...........................................................2-4

Antenna Installation................................................................................... 3-1

3.1 Unpacking and Inspection.................................................................................3-1

3.1.1 Equipment Damage or Loss During Shipment....................................................3-1

3.1.2 Equipment Return Procedure.............................................................................3-1

3.2 Recommended Tools And Equipment................................................................3-2

3.3 Recommended Installation Sequence .................................................................3-3

3.4 Installation of Foundation and Feet...................................................................3-4

3.4.1 Wind-loading Information ................................................................................3-5

3.5 Installation of Typical Foundations ..................................................................3-9

3.5.1 Installing a Pier Foundation (In-ground Mount) ................................................3-9

3.5.2 Installing a Pad Foundation (Surface Mount)...................................................3-10

33N074 Rev M iv

3.6 Assembly of Mount.........................................................................................3-11

3.7 Assembly Of Reflector....................................................................................3-29

3.8 Satellite Pointing Procedure............................................................................3-37

33N074 Rev M v

LIST OF FIGURES

Figure 1-1. Series 8345 Earth Station Antenna..............................................................................1-3

Figure 2-1. Clearance Requirements for 4.5-Meter Antenna ..........................................................2-3

Figure 3.1. outline Dimensions of 4.5-meter Antenna ...................................................................3-4

Figure 3.2. Foundation Loading: Sign Conventions .......................................................................3-5

Figure 3.3. Pier Foundation, In-ground Mount.............................................................................3-12

Figure 3.4. Pad Foundation, Surface Mount..................................................................................3-13

Figure 3.6. Installation of Leg Assemblies....................................................................................3-15

Figure 3.7. Installation of Leg Support Bracket ...........................................................................3-16

Figure 3.8. Installation of Support Arms.......................................................................................3-17

Figure 3.9. Installation of Azimuth Ring......................................................................................3-18

Figure 3.10. Tightening Sequence for Pedestal .............................................................................3-20

Figure 3.11. Positioning A-frame on Azimuth Ring......................................................................3-21

Figure 3.12. Actuator Fitting Assembly .......................................................................................3-22

Figure 3.13. Installation of A-frame.............................................................................................3-23

Figure 3.14. Installation of Elevation Pivot Brackets..................................................................3-24

Figure 3.15. Attachment of Hub to A-Frame...............................................................................3-25

Figure 3.16. Installation of Hub Braces........................................................................................3-26

Figure 3.17. Actuator Installation................................................................................................3-28

Figure 3.18. Assembly and Adjustment ........................................................................................3-31

Figure 3.19. Template Installation ..............................................................................................3-31

Figure 3.20. Tapered Pins............................................................................................................3-32

Figure 3.21. Placing the Template onto the Panel.......................................................................3-34

Figure 3.22a. Stringing the Reflector Figure 3-22b. Locating the Strings................................3-35

33N074 Rev M vi

LIST OF TABLES

Table 1-1. Series 8345 Antenna Specifications..............................................................................1-5

Table 3.1. Tools and Equipment Required for Installation .............................................................3-2

Table 3.2. Loads at Individual Antenna Feet..................................................................................3-6

Table 3.3. Total Loads on Foundation............................................................................................3-8

Safety Summary

33N074 Rev M vii

SAFETY SUMMARY

These are general safety precautions that are not related to any specific procedure. These are recommended precautions that personnel must understand and apply.

WARNING

Use care when using metal tools that circuits are not shorted.

Some circuits have high current capacity which, when shorted, will flash and may cause burns and/or eye injury.

Remove all jewelry and exposed objects from body and clothing before performing maintenance, adjustments, and/or troubleshooting. Before working inside equipment, remove all power, unless power is required to be on to perform procedures. Do NOT replace parts or modules with power ON.

Servicing this equipment requires working with the equipment while AC power is applied. Extreme caution must be exercised during these procedures.

RESUSCITATION

Personnel working with or near hazardous chemicals or voltages should be familiar with modern methods of resuscitation.

USE SAFETY-APPROVED EQUIPMENT

When cleaners are being applied, approved explosion-proof lights, blowers, and other equipment shall be used. Ensure that firefighting equipment is readily available and in working order. Keep cleaners in special polyethylene bottles or in safety cans and in minimum quantities. Discard soiled cloths into safety cans.

Safety Summary

33N074 Rev M viii

This page is intentionally Blank

Chapter 1 - General Information and Safety

33N074 Rev M 1-1

Chapter 1

General Information and Safety

1.1 Introduction

This manual describes the proper installation of the Series 8345 earth station antenna. The manual is divided into three chapters. Chapter 1 provides the safety precautions involved with the installation of the antenna, an overview of the antenna, its applications, features, specifications, physical and functional descriptions of its components, and available options.

Chapter 2 provides information for selecting and evaluating an antenna site.

Chapter 3 provides unpacking and installation information, including tools and equipment required, recommended installation sequence, and step-by-step installation procedures.

Important information concerning personal injury, damage to equipment, and increased efficiency or convenience is included as WARNINGS, CAUTIONS, and NOTES, respectively. Therefore, particular attention should be given to this information.

1.2 Safety Precautions

To ensure that installation is trouble-free, to minimize risks to installation personnel, and to prevent damage to equipment, it is necessary to observe the safety precautions provided below. Such information may be found throughout the manual in the form of a WARNING, CAUTION, or NOTE where:

WARNING

designates information concerning the possibility of bodily injury, CAUTION designates information concerning the possibility of damage to the equipment or other property, and

33N074 Rev M 1-2

NOTE

designates information which may aid the efficiency and convenience of installation.

Carefully read and understand the following safety precautions before attempting to install the equipment:

• Read all instructions carefully before installing the antenna.

• Adhere to all warnings and cautions contained in the installation instructions.

• Make sure that at least two people are present at all times during installation.

WARNING

Do not attempt to assemble the antenna in winds exceeding 20 miles per hour.

The antenna system should not be located near, and its movement should not make contact with, power or other electrical circuits.

During installation, extreme care should be taken to keep from touching any power lines or other electrical circuits.

Failure to observe these warnings may result in severe injury or death.

33N074 Rev M 1-3

1.3 Equipment Description

The Series 8345 earth station antenna (Figure 1-1) is designed for quick and easy installation without special tools or hoisting equipment.

Figure 1-1. Series 8345 Earth Station Antenna

A concrete pier foundation kit is available as an economical alternative to a concrete slab foundation. The pier foundation is designed for steady 110 mph windloads. It consists of three cast pier inserts. A steel framework bolts the inserts into a triangle, which is lowered into three augered holes containing prepared re-bar cages; the holes are then filled with concrete.

Installing the pier foundation is less time-consuming and less expensive than pouring a concrete slab foundation.

A standard elevation-over-azimuth mount is provided with the 4.5-meter antenna for both ease of operation and pointing accuracy. This mount provides continuous satellite arc coverage from any location in the contiguous United States. Pointing of the antenna is rapid and accurate. A 5° to 90° elevation range is provided for maximum pointing capability.

Complete 360° azimuth coverage eliminates the need to align the

WIND

DIRECTION

FOOT 2

FOOT 1

13606

FOOT 3

+Z

(OUT OF PAGE)

+X

AZ ANGLE

WIND ANGLE

+Y

33N074 Rev M 1-4 foundation to a specific heading, thereby also eliminating the possibility of installation errors associated with foundation centerlines.

The paraboloidal reflector consists of twelve precision, stretch-stamped steel panels for consistent surface accuracy. The twelve panels are uniform and completely interchangeable for handling convenience, lower shipping costs, and easy installation. After a foundation has been prepared, two people can install the antenna in one day. No special tools are required and no single part weighs more than 140 pounds (45 kg).

Each of the optional feeds offered with the 4.5-meter earth station antenna provides consistent high quality and unusual economy in a mid-sized antenna system. The Ku-band Feed provides dual-polarization, receive-only capability in the 10.9 to 12.75 GHz range. The C-band Feed provides dual-polarization, receive-only capability in the 3.7 to 4.2 GHz range.

1.4 Equipment Application

The 4.5-meter earth station antenna is designed for a wide range of applications and is especially well-suited for CATV operations receiving video programming from domestic satellites. Feeds are available for 3.7 to

4.2 GHz receive-only applications, 10.9 to 12.75 GHz receive-only applications.

1.5 Standard Features

The Series 8345 earth station antenna provides cost-effective high performance for a wide range of applications and includes the following features:

• Ease of installation

• Minimum maintenance

• Minimum shipping and installation costs

• Minimum site preparation requirements

• Full satellite arc coverage from any location in the contiguous United States (5° to 90° continuous elevation; 360° continuous azimuth)

• Elevation-Over-Azimuth Mount for ease of operation

• Interchangeable, stamped reflector panels for consistent surface accuracy (no panel adjustment or testing required)

• Protected environment for LNAs/LNBs

• Ku-band compatible

33N074 Rev M 1-5

1.6 Options

For added ease of installation and a wider range of applications, the following options are available:

• Pier Foundation Kit (a low-cost alternative to the concrete slab foundation)

• C/Ku-band Feed (for receive-only applications in the 10.9 to 12.75 GHz range)

• Multi-beam Feed (for receiving up to 5 satellite beams -- from satellites spaced 2° to 8° apart --with one dish)

1.7 Specifications

The Series 8345 earth station antenna has been designed and tested to meet the specifications listed in Table 1-1.

Table 1-1. Series 8345 Antenna Specifications1

Characteristic Specification

ELECTRICAL

Operating frequency C-band 3.7 to 4.2 GHz Ku-band 10.9 to 12.75 GHz

Feed types Ku-band, dual polarization C-band, dual polarization C-band dual-beam

Antenna gain 43.6 dBi at 4 GHz

53.1 dBi at 12 GHz

VSWR (Referenced at output of OMT) 1.3:1 maximum

Polarization Dual linear

Polarization adjustment 360° continuous

Axial ratio 35 dB minimum on axis

Isolation between ports 35 dB minimum for dual linear operation

Half-power beam width (-3dB reference) C-band 1.1° nominal @ 4 GHz Ku-band 0.4° nominal @ 12 GHz

First sidelobe C-band -22.5 dB @ 4 GHz Ku-band -20 dB @ 12 GHz

Antenna noise temperature C-band 24K at 30° elevation Ku-band 28K at 30° elevation

33N074 Rev M 1-6

Table 1-1. Series 8345 Antenna Specifications1

Characteristic Specification

Radiation pattern C-band main beam <= theta <7.0 <29.0 - 25.0 (log (theta)) dbi Ku-band 1.0 <= theta < 7.0: <29.0 – 25.0 (log (theta)) dbi C- & Ku-band 7.0 <= theta < 9.2: < +8.0 dBi

9.2 <= theta < 48.0: <32.0 – 25.0 (log (theta)) dBi

48.0 <= theta < 180.0: < -10.0 dBi

Feed interface CPR-229 flange (C-band) WR-75 flange (Ku-band)

GENERAL

Antenna type Prime-focus, paraboloidal

Antenna diameter 4.5-meter (14.83 ft)

Reflector construction Stretch-stamped, 12-panel, 4.5-meter diameter

Mount configuration Elevation-over-azimuth

Azimuth coverage 360° continuous

Elevation range 5° to 90° continuous

Satellite coverage Any satellite in the visible geosynchronous arc, from any location in the contiguous U.S.

ENVIRONMENTAL

Pointing accuracy .054° rms in 30 mph winds gusting to 45 mph @ 59° F

Temperature range (operational) -40°C to 65°C (-40° F to +149° F)

Survival2 Antenna designed to withstand steady winds up to 110 mph @ 59° F, 107 mph @ 32°F no ice, 99 mph @ -40° F no ice, 67 mph @ 32° F with 2-inch radial ice. (Ref. American National Standard Building Code Requirements, ANSI A58.1, with an effective velocity pressure of 30.9 psf.) Winds gusting to 125�mph may cause some localized yielding.

Solar radiation 1. 1 mW/mm 2

Atmospheric conditions Salt, pollutants and corrosive contaminants as encountered in tropical temperature, marine, and moderate industrial areas.

1Specifications subject to change without notice.

2All conditions assume proper installation and adjustable components securely clamped.

Chapter 2 - Antenna Site Selection

33N074 Rev M 2-1

Chapter 2

Antenna Site Selection

2.1 Criteria For Antenna Site Selection

One of the most important factors to be considered for trouble-free, high-quality signal reception from desired satellites is the location of the antenna (the antenna site). For best signal reception, the antenna site selected should provide the following:

a. Operational Clearance. The site must allow clearance for antenna movement (in both elevation and azimuth) necessary for aiming and maintenance purposes.

b. Clear Line-of-Sight. The site must allow the antenna to be aimed at desired satellite(s) with no obstructions between any portion of the reflector and the satellite(s).

c. Absence of Signal Interference. The site must be free of strong microwave and other signal interference.

However, in order to evaluate the selected site against the above criteria, the antenna pointing position (aiming coordinates) for the desired satellite(s) must be determined. The methods of determining aiming coordinates for desired satellite(s) and for ensuring that the above criteria are met are described below.

2.2 Determining Aiming Coordinates

To receive signals from a desired satellite, an antenna must be positioned properly using the correct elevation and azimuth angles. The following procedure describes the method for determining the aiming coordinates for a given satellite at a specific site. This procedure should be used to evaluate the selected antenna site before the antenna is installed. The same procedure is also used following antenna installation to accurately aim the antenna.

33N074 Rev M 2-2

1. Determine the latitude and longitude of your selected antenna site. For our example, Atlanta Georgia is 33.7° N latitude and 84.4° W longitude.

2. Obtain the longitude of the satellite from which you desire to receive signals. For our example, the satellite longitude is 131° W.

3. Calculate the local pointing angles using method A or B.

• Method A.

Use the site angle calculator available on the internet at url:

http://www.satsig.net/ssazel.htm

• Method B.

Use the following formulas.

Local Azimuth = ATAN(TAN((S1–S2)*0.017453)/SIN(S2*0.017453))*57.29578+180

Local Elevation = ATAN(((COS((S1-S2)*0.017453))*(COS(S2*0.017453))-

0.151263)/SQRT(1-((COS((S1-S2)*0.017453))^2)*((COS(S2*0.017453))^2)))*57.29578

Where

S1 = Satellite Latitude in decimal degrees. Enter West as positive numbers and East as negative numbers.

S2 = Site Longitude in decimal degrees. Enter values as true angles (verses uncompensated magnetic compass readings) Enter North as positive numbers and South as negative numbers.

S3 = Satellite Latitude in decimal degrees. Enter West as positive numbers and East as negative numbers.

2.3 Verifying Operational Clearance

After the antenna aiming coordinates have been determined, verify operational clearance (Figure 2-1). This ensures that antenna movement is unrestricted for both aiming and maintenance purposes.

33N074 Rev M 2-3

Figure 2-1. Clearance Requirements for 4.5-Meter Antenna

33N074 Rev M 2-4

2.4 Verifying Clear Line-of-sight

After operational clearance has been verified, verify a clear line-of-sight.

This ensures that the antenna may be aimed at the desired satellite(s) without obstruction between any portion of the reflector and the satellite(s).

Using the satellite aiming coordinates for a particular site, be sure that there are no trees, buildings, powerlines, etc. between the dish location and the satellite. It is important that this clearance includes the total dish surface area and that nothing blocks any portion of the dish surface.

2.5 Verifying Absence of Signal Interference

For best signal reception, it is important that the selected antenna site be free of strong microwave or other signal interference. Microwave systems near a selected antenna site can cause interference. If a known source of interference (a microwave tower, for example) is close by, it may be necessary to have a site survey performed to determine the site’s suitability.

CAUTION

No buildings, walls, fences, or other permanent fixtures should be planned for installation any closer than two meters from the antenna and foundation envelope without consultation with the factory.

Chapter 3 - Antenna Installation

33N074 Rev M 3-1

Chapter 3

Antenna Installation

3.1 Unpacking and Inspection

NOTE

Do not empty packages containing parts. Remove parts from packages only as needed during installation. Because the part numbers are provided only on the packages, if the parts are emptied from the packages, identifying parts would be difficult.

This could result in improper installation.

Upon receipt of the shipping carton, carefully compare the bill of lading with the equipment actually received, checking for equipment damaged during shipment.

Sift through all packing materials before declaring missing equipment.

NOTE

To declare equipment as damaged or lost, it is important to save the shipping carton. The inspector must examine the carton prior to completing the inspection report.

3.1.1 Equipment Damage or Loss During Shipment

When equipment is damaged or lost in transit, the carrier (delivering transportation company) is required by law to make note of damage or loss on the freight bill. The carrier, not the shipper, is responsible for all damage or loss.

In the event of equipment damage or loss during shipment, the carrier of the equipment should be contacted immediately.

3.1.2 Equipment Return Procedure

SSE's Satellite Ground Systems division makes every reasonable effort to ensure that all items arrive safely and in working order. When equipment is received, which is not in working order, return the equipment to the factory for repair or replacement. Return the equipment according to the following procedure. This procedure will apply whenever equipment is returned for warranty or other services.

a) Notify SSE of the problem and request a Return Material Authorization (RMA) number and shipping instructions.

33N074 Rev M 3-2

For a current list of telephone and email contact information please refer to the SSE internet site (www.superiorsatelliteusa.com).

b) Tag or identify defective equipment and note defect and circumstances, if any. If known, reference sales order, purchase order, and date equipment was received.

c) Reship equipment in original shipping container or use a strong shipping container to protect equipment during shipment.

d) Package equipment using shock-absorbing material around all sides of equipment.

e) Seal container securely and mark outside of container FRAGILE.

3.2 Recommended Tools And Equipment

Installation of the Series 8345 Earth Station Antenna is quick and easy.

Although no special tools or hoisting equipment are required, Table 3-1 lists the tools and equipment needed for efficient and convenient installation.

Table 3.1. Tools and Equipment Required for Installation

Size Description

1-1/8" Combination Wrench and Socket (1/2" Drive)

15/16" Combination Wrench and Socket (1/2" Drive)

3/4" Combination Wrench and Socket (1/2" Drive)

9/16" Combination Wrench and Socket (1/2" Drive)

1/2" Combination Wrench and Socket (3/8" Drive, 3/8" Ratchet)

3/8" Combination Wrench and Socket (3/8" Drive, 3/8" Ratchet)

1/4" Combination Wrench and Socket (3/8" Drive, 3/8" Ratchet)

7/16" Combination Wrench

6" Slip-joint Pliers

Alignment tool (drift pin)

15” Large Adjustable Wrench (1-7/8" opening)

7 to 9 ft-lb Torque Wrench

15-20 ft-lb Torque Wrench (1/4" to 3/8" Drive)

150 ft-lbs Torque Wrench (1/2" Drive)

Slotted Screwdriver

Phillips-head Screwdriver

5/32" Allen Wrench

Carpenter's Level

33N074 Rev M 3-3

Table 3.1. Tools and Equipment Required for Installation

Size Description

Angle Finder or Inclinometer

6' Stepladder

Hammer

3.3 Recommended Installation Sequence

In order to ensure proper and trouble-free installation of the antenna after a site has been selected (See Chapter 2 for antenna site selection), the following installation sequence is recommended:

a. Installation of foundation and feet

b. Assembly of mount

c. Assembly of reflector

d. Installation of feed

e. Satellite pointing procedure

f. Feed polarization

33N074 Rev M 3-4

3.4 Installation of Foundation and Feet

The Series 8345 Earth Station Antenna (Figure 3.1) does not require critical foundation alignment because the antenna can be rotated through an azimuth range of 360 degrees. This feature greatly simplifies construction of the foundation and consequently results in reduced costs.

SSE does not represent or warrant that any particular design or size of foundation is appropriate for any particular locality or installation. However, this manual includes wind-loading information, typical foundation designs, and other information that may be used as a guide when considering professional design of an antenna foundation.

Figure 3.1. outline Dimensions of 4.5-meter Antenna

33N074 Rev M 3-5

3.4.1 Wind-loading Information

The Series 8345 Antenna is designed to survive a 110 mph wind. Figure 3-2 shows the forces encountered at the foundation by either in-ground feet or surface feet for 110 mph wind.

Figure 3.2. Foundation Loading: Sign Conventions

NOTE

Tables 3-2 and 3-3 list forces which are the loads applied to the foundation by the antenna. The 31.0 psf (110 mph) load cases include the corresponding Antenna Weight Only loads. Forces are in lbs; moments are in lb-ft.

WIND

DIRECTION

FOOT 2

FOOT 1

13606

FOOT 3

+Z

(OUT OF PAGE)

+X

AZ ANGLE

WIND ANGLE

+Y

33N074 Rev M 3-6

Table 3.2. Loads at Individual Antenna Feet

Load Case

Ant

AZ

Wind Dir

EL

Angl

Foot 1 Fx Fy Fz

Foot 2 Fx Fy Fz

Foot 3 Fx Fy Fz

WEIGHT

ONLY

0 0 0 374 -39 -211 -746 -1 -1147 372 39 -213

WEIGHT

ONLY

0 0 60 265 149 -381 -530 -1 -807 264 -148 -382

WEIGHT

ONLY

0 0 90 189 281 -502 -377 -0 -567 188 -281 -502

31.0 psf 0 0 0 1421 2772 -4466 5178 4 7354 1428 -2776 -4458

31.0 psf 0 0 60 2215 2097 -4095 -585 -2 -1030 2212 -2096 -4099

31.0 psf 0 0 90 -166 1439 -1756 1275 2 1935 -163 -1441 -1751

31.0 psf 0 60 0 833 2968 -4281 5562 -524 7907 2155 -2944 -5197

31.0 psf F 0 120 0 1474 -222 -782 -1481 862 -2207 -992 554 1419

31.0 psf 0 180 0 -380 -2062 2854 -5012 -4 -7269 -388 2067 2844

31.0 psf 0 180 60 571 -1370 1369 -2671 -4 -4034 565 1374 1361

31.0 psf 0 180 90 544 -877 752 -2029 -2 -3069 539 879 747

WEIGIIT

ONLY

36 0 0 138 -89 50 -671 228 -1027 533 -139 -594

WEIGHT

ONLY

36 0 60 158 126 -263 -496 104 -753 338 -230 -555

WEIGHT

ONLY

36 0 90 172 277 -485 -372 16 -558 200 -293 -528

31.0 psf 36 0 0 2635 4716 -7719 4126 -102 5846 -267 105 303

31.0 psf 36 0 60 2144 2886 -4937 -884 584 -1419 1849 -1211 -2868

31.0 psf 36 0 90 554 1788 -2784 967 -571 1464 -756 -662 -252

31.0 psf 36 60 0 2209 5198 -8006 4656 -656 6601 346 79 -165

31.0 psf 36 120 0 892 -890 499 -1788 1145 -2623 -614 125 553

31.0 psf 36 180 0 -1660 -3548 5645 -4126 466 -5976 1109 -315 -1239

31.0 psf 36 180 60 -451 -1910 2866 -2220 785 -3342 1429 223 -827

31.0 psf 36 180 90 -210 -1234 1814 -1711 603 -2580 1156 75 -803

WEIGHT

ONLY

60 0 0 -19 -39 103 -550 339 -833 568 -300 -840

WEIGHT

ONLY

60 0 60 87 148 -240 -441 155 -664 354 -302 -667

WEIGHT

ONLY

60 0 90 162 280 -482 -364 24 -545 203 -304 -544

31.0 psf 60 0 0 2940 5099 -8393 2419 -156 3408 -1345 2009 3415

31.0 psf 60 0 60 1857 3203 -5116 -1368 865 -2048 1432 -741 -2060

33N074 Rev M 3-7

Table 3.2. Loads at Individual Antenna Feet

Load Case

Ant

AZ

Wind Dir

EL

Angl

Foot 1 Fx Fy Fz

Foot 2 Fx Fy Fz

Foot 3 Fx Fy Fz

31.0 psf 60 0 90 976 1709 -2994 465 -850 702 -969 -41 721

31.0 psf 60 60 0 2613 5734 -8946 2934 -729 4138 -840 2150 3237

31.0 psf 60 120 0 509 -1196 1160 -1687 1300 -2452 -357 -372 -279

31.0 psf 60 180 0 -2149 -3739 6221 -2688 696 -3887 1946 -1963 -3904

31.0 psf 60 180 60 -1036 -1817 3171 -1486 1168 -2225 1754 -680 -2249

31.0 psf 60 180 90 -653 -1150 2031 -1194 897 -1791 1374 -567 -1810

33N074 Rev M 3-8

Table 3.3. Total Loads on Foundation

Load Case

Ant

AZ

Wind Dir El

Angl

FOUNDATION FORCE AND MOMENT SUMMATION

Fx Fy Fz Mx My Mz

WEIGHT

ONLY

0 0 0 -0 -0 -1571 -0 -4654 -0

WEIGHT

ONLY

0 0 60 -0 -0 -1571 -0 -2113 -0

WEIGHT

ONLY

0 0 90 0 0 -1571 -0 -317 -0

31.0 psf 0 0 0 8027 -0 -1570 -0 54317 -0

31.0 psf 0 0 60 3842 -0 -9224 -0 13151 -0

31.0 psf 0 0 90 946 0 -1571 -0 17846 0

31.0 psf 0 60 0 8550 -500 -1571 3672 58152 8807

31.0 psf 0 120 0 -999 1195 -1571 -8780 -11992 -14836

31.0 psf 0 180 0 -5781 0 -1571 -0 -47121 -0

31.0 psf 0 180 60 -1535 0 -1303 -0 -25999 -0

31.0 psf 0 180 90 -946 -0 -1570 -0 -18479 -0

WEIGHT

ONLY

36 0 0 -0 0 -1571 2736 -3765 -0

WEIGHT

ONLY

36 0 60 -0 0 -1571 1242 -1709 -0

WEIGHT

ONLY

36 0 90 -0 0 -1571 186 -256 0

31.0 psf 36 0 0 6494 4718 -1570 -31927 43943 0

31.0 psf 36 0 60 3108 2258 -9224 -7730 10640 0

31.0 psf 36 0 90 765 556 -1571 -10490 14438 0

31.0 psf 36 60 0 7211 4621 -1571 -31210 49205 8807

31.0 psf 36 120 0 -1511 380 -1571 -54 -14862 -14836

31.0 psf 36 180 0 -4677 -3398 -1571 27697 -38121 -0

31.0 psf 36 180 60 -1241 -902 -1303 15282 -21034 -0

31.0 psf 36 180 90 -765 -556 -1570 10862 -14950 -0

WEIGHT

ONLY

60 0 0 -0 -0 -1571 4031 -2327 -0

WEIGHT

ONLY

60 0 60 -0 -0 -1571 1830 -1056 -0

WEIGHT

ONLY

60 0 90 -0 0 -1571 274 -158 0

31.0 psf 60 0 0 4014 6952 -1570 -47040 27158 -0

31.0 psf 60 0 60 1921 3327 -9224 -11390 6576 -0

33N074 Rev M 3-9

Table 3.3. Total Loads on Foundation

Load Case

Ant

AZ

Wind Dir El

Angl

FOUNDATION FORCE AND MOMENT SUMMATION

Fx Fy Fz Mx My Mz

31.0 psf 60 0 90 473 819 -1571 -15455 8923 0

31.0 psf 60 60 0 4708 7154 -1571 -48525 32256 8807

31.0 psf 60 120 0 -1534 -268 -1571 5996 -13599 -14836

31.0 psf 60 180 0 -2890 -5006 -1571 40808 -23560 0

31.0 psf 60 180 60 -767 -1329 -1303 22516 -12999 -0

31.0 psf 60 180 90 -473 -819 -1570 16003 -9240 -0

3.5 Installation of Typical Foundations

Typical foundation designs for in-ground and surface-mounted feet are provided in Figures 3-3 and 3-4. Foundations are designed for 110 mph wind loads.

Because soil conditions, building codes, and other factors vary with location, persons installing antenna foundations should obtain professional engineering services for the design and construction supervision.

The following notes apply to the typical foundation designs and corresponding instructions:

NOTES

All reinforcing bars should conform with ASTM A-615-68, Grade 40 or Grade 60.

All concrete should conform to building code standards and have a minimum compressive strength of 3000 psi at 28 days.

The antenna should be properly grounded to meet applicable local codes. The ground cable from an antenna foot should be attached to either a buried grid or a suitable stake, depending on local soil conditions.

The typical foundations used in these instructions are provided for illustration only. SSE does not represent or warrant that these illustrative designs are suitable for any particular location. Consultation with a professional engineer may be necessary to determine a suitable foundation design for each site.

3.5.1 Installing a Pier Foundation (In-ground Mount)

STEP 1. As shown in Figure 3-3, attach pier spacers between pier feet using 1/2-inch bolt, washer, and nut, twelve places.

33N074 Rev M 3-10

STEP 2. Set piers 12" into pier holes. Level the entire foundation frame by placing support blocks under the pier spacers

WARNING

No attempt should be made to erect the antenna without allowing proper cure time for the concrete.

NOTE

Remove support blocks after concrete has been poured and set

3.5.2 Installing a Pad Foundation (Surface Mount)

The surface foot is secured to the foundation with two 3/4”-diameter anchor bolts (three places). These bolts are 3/4-10 UNC, made of ASTM A36 hot-rolled steel.

Position the bolts as shown in Figure 3-3. SSE has an optional anchor bolt kit which contains three surface feet, six anchor bolts, and a template for installing the bolts.

WARNING

Allow proper concrete cure time before full torque (100 ft-lbf) is applied to anchor bolts.

WARNING

No attempt should be made to erect the antenna without allowing proper cure time for the concrete.

NOTE

Remove support blocks after concrete has been poured and set.

33N074 Rev M 3-11

3.6 Assembly of Mount

The procedure below describes the assembly of the Series 8345 elevation-over-azimuth mount. This procedure includes instructions for assembling the pedestal, attaching the pedestal to the foundation, and assembling the hub. The procedure follows:

NOTE

Before proceeding, be sure that the ground cable has been attached to a foot of the foundation according to local grounding codes.

(See notes in Figures 3-3, and 3-4.)

33N074 Rev M 3-12

Figure 3.3. Pier Foundation, In-ground Mount

FOUNDATION CONSTRUCTION NOTES:

1. The foundation heading is not critical to antenna performance.

2. Pier holes are drilled on 96.0 inch centers at 72 inch minimum depths as shown. Pier is minimum 18 inches diameter. Bottom of pier hole is to be below frost line. Remove any loose soil and tamp bottom of holes.

3. Construct a reinforcing cage for each pier using six No. 6 (3/4” dia.) reinforcing bars to form a 10.5 inch vertical diameter cylinder.

The vertical bars should be held in place by wire tying to three circular No. 3 (3/8 dia.)

reinforcing bar ties. Lower a cage into each pier hole. Center it in the hole and depress the vertical rebars two to three inches into the ground at the bottom of the hole.

4. Connect spacers between pier inserts and lower inserts into rebar cages. Level the entire foundation frame by placing blocks under the spacers.

5. The top of the cages of the piers should be level with respect with one another within 1/4 inch.

6. When concrete is poured into the holes, care should be taken that the concrete flows fully into the cavities on either side of the pier inserts, and that the cages do not shift. Allow concrete to cure before erecting the antenna.

NOTES

1. Maximum dimension between bottom of horizontal flanges and top of concrete is 2 inches.

2. Minimum safe soil bearing capacity is 3000 PSF. If soil is cohesive, the undrained shear strength should be > 1000 PSF. If the soil is cohesionless the angle of internal friction should be ≥ 30°.

3. Footing is designed for 110 MPH survival wind for Model 8345 4.5-meter Antenna attached directly to the piers.

4. Proper electrical grounding shall be provided by the installing contractor to meet applicable local codes. This may take the form of a buried grid or suitable copper stake, depending on local soil conditions. The mount shall be electrically connected to ground. The grounding system should not be connected to the concrete foundation.

33N074 Rev M 3-13

Figure 3.4. Pad Foundation, Surface Mount

FOUNDATION CONSTRUCTION NOTES

1. The foundation heading is not critical to antenna performance.

2. Proper electrical grounding shall be provided by the installing contractor to meet local applicable codes. This may take the form of buried grid or a suitable copper stake, depending on local soil conditions. The mount shall be electrically connected to ground.

3. Provisions must be made to provide suitable support power, RF and control cables either by buried conduit or overhead raceway. If conduit is supplied it shall be at least three inches diameter.

4. Lightning arrestors must be provided across all cables leaving antenna per applicable local codes and N.F.P.A. codes.

5. Areas (6 x 12) for mounting feet should be flat within 1/16 inch and level with respect to one another within 1/4 inch.

6. Use no nuts under feet. Foot must rest flush on concrete pad. Use one washer and one nut per anchor bolt to secure foot to pad.

NOTES

1. Minimum safe soil-bearing capacity is 3000

PSF.

2. Structural steel shall be ASTM-A-36.

3. Footing is designed to safely support a Model

8345 4.5-meter Antenna attached directly to the pad in a 110 MPH steady wind.

33N074 Rev M 3-14

Figure 3.5. Pier Foundation Extension

This page intentionally left blank

33N074 Rev M 3-15

NOTE

For the following procedure, tighten all fasteners in STEPS 1 through 6 only finger tight, then follow STEP 7 (1 through 5) for tightening sequence.

STEP 1. As shown in Figure 3-6, place one end of a leg onto a leg juncture maintaining proper orientation of bend in leg. Bolt in place with 3/4- 10 x 2 1/4-inch bolt, washer, and nut, two places. Perform this operation with each of the six legs and three leg junctures.

STEP 2. Attach two leg assemblies to each foundation foot using 3/4-10 x 4 1/2-inch bolt, washer, and nut, six places. At one foundation foot, install a ground attachment lug on the leg ends before bolting the leg ends to the foundation foot. Then ground antenna according to local grounding codes.

LEG JUNCTURE

(301625)

LEG (301628)

GROUND SHIELD

(NOT SUPPLIED)

GROUND ATTACHMENT LUG

(301817)

BOLT 3/4-10 X 2 1/4 (173823)

WASHER 3/4 (88537)

NUT 3/4-10 (88532)

TO BURIED GRID OR SUITABLE

GROUNDING STAKE PER LOCAL

GROUNDING CODEFOUNDATION FOOT

13610

BOLT 3/4-10 X 4 1/2 (301504)

WASHER 3/4 (88537)

NUT 3/4-10 (88532)

Figure 3.6. Installation of Leg Assemblies

33N074 Rev M 3-16

STEP 3. As shown in Figure 3-7, position the leg support bracket (flanges down) on top of the previously assembled leg junctures. Bolt leg support bracket in place at the two inboard holes of each leg juncture using 3/4-10 x 2 1/4-inch bolt, washer, and nut, six places.

LEG

LEG JUNCTURE

LEG SUPPORT

BRACKET

(300255)

16311

BOLT 3/4-10 X 2 1/4

(300168)

WASHER 3/4

(88537)

NUT 3/4-10

(88532)

Figure 3.7. Installation of Leg Support Bracket

STEP 4. Attach short extension of each support arm to the center hole at the underside of each leg juncture using 3/4-10 x 2 1/4-inch bolt, washers and nut, three places. (See Figure 3-8.) Bolt the three support arms together at the center using 3/4-10 x 2 1/4-inch bolt, washer, and nut, three places. At one of the center locations, install a ground attachment lug to the support arm before fastening the support arms together. Then attach a terminal lug to the ground attachment lug using 1/4-20 x 3/4-inch screw, washers, and nut. This will be used later to ground the antenna feed/LNBs.

33N074 Rev M 3-17

Figure 3.8. Installation of Support Arms

33N074 Rev M 3-18

STEP 5. Position the azimuth ring on top of the leg support bracket and bolt in place at outboard holes using 3/4-10 x 2-inch bolt and washer, six places. (See Figure 3-9.)

SUPPORT ARM

(300137)

BOLT 3/4-10 X 2 1/4

(300168)

WASHER 3/4

(88537)

NUT 3/4-10

(88532)

BOLT 3/4-10 X 2 (170598)

WASHER 3/4 (88537)

AZIMUTH RING

(300138)

LEG SUPPORT

BRACKET

(300255)

13613

Figure 3.9. Installation of Azimuth Ring

STEP 6. As shown in Figure 3-9, bolt the long extension of each support arm to the azimuth ring using 3/4-10 x 2-inch bolt, washer, and nut, three places.

STEP 7. Using the following sequence (as shown in Figure 3-10), torque all 3/4-inch fasteners to 130 ft-lbf.

(1) Torque the two inboard bolts of each leg juncture.

(2) Torque the six outboard bolts of each leg juncture which connect the azimuth ring to the leg junctures.

NOTE

Using a carpenter’s level, make sure that the azimuth ring remains level during steps 3 and 4.

(3) Torque the two bolts at each foot.

33N074 Rev M 3-19

(4) Torque the two bolts at the upper end of each leg.

(5) First, snug all nine bolts in the support arms to ensure that there is no binding of the arms at any connecting point; then, torque all nine bolts in the support arms.

33N074 Rev M 3-20

FOUNDATION

FOOT

AZIMUTH RING

LEG SUPPORT

BRACKET

LEG SUPPORT

BRACKET

LEG

LEG

LEG

JUNCTURE

AZIMUTH

RING

SUPPORT

ARM

13614

Figure 3.10. Tightening Sequence for Pedestal

33N074 Rev M 3-21

STEP 8. Insert one button backing plate into each two front clamps of the A-frame, four places. (See Figure 3-11.)

STEP 9. Apply a generous amount of grease to one side of the anti-friction buttons and insert an anti-friction button into each two front clamps of the A-frame, four places. (See Figure 3-11.)

STEP 10. Position the A-frame on top of the previously installed azimuth ring.

(See Figure 3-11.)

NOTE

Make sure that the anti-friction buttons do not drop out of the A-frame.

Figure 3.11. Positioning A-frame on Azimuth Ring

STEP 11. Insert one button backing plate into the right-hand actuator fitting and another button backing plate into the left-hand actuator fitting.

(See Figure 3.12.)

33N074 Rev M 3-22

STEP 12. Insert one anti-friction button into the right-hand actuator fitting and another anti-friction button into the left-hand actuator fitting. (See Figure 3.12.)

STEP 13. Insert greased actuator nut into the right hand actuator fitting and left-hand actuator fitting. Be sure that the actuator nut is flush with the outside surface of each actuator fitting. (See Figure 3.12.)

STEP 14. Carefully attach the actuator fitting assembly to the A-frame and snugly bolt in place using 3/4-10 x 2 1/4-inch bolt, washer, and nut, six places. Check to see if the actuator nut rotates without binding.

If not, adjust the actuator fittings by tapping from above or below until the actuator nut rotates with minimal binding. Torque the six bolts (alternating from one actuator fitting to the other) to 130 ft-lbf. (See Figure 3-12.)

Figure 3.12. Actuator Fitting Assembly

33N074 Rev M 3-23

STEP 15. Loosely bolt the front clamp plates to each of the two front clamps of the A-frame using 3/4-10 x 5-inch bolt, washer, and nut, four places. (See Figure 3-13.)

STEP 16. Loosely bolt the rear clamp plate to the actuator fittings using 3/4-10 x 5-inch bolt, and washer, two places. (See Figure 3-13.)

STEP 17. Thread each of six jam nuts onto each of six 3/8-16 x 1-inch screws until they are against the heads of the screws. Thread screws into front clamps of A-frame, four places, and hand tighten jam nuts against clamps. Thread remaining two screws into actuator fittings, and hand tighten jam nuts against actuator fittings. (See Figure 3-13.)

Figure 3.13. Installation of A-frame STEP 18. Position the blade of the left-hand elevation pivot bracket onto the pivot blade of the A-frame. Position the blade of the right-hand elevation pivot bracket onto the pivot blade of the A-frame. The pivot blades of the A-frame should be between the blades of the elevation pivot brackets. (See Figure 3-14.)

STEP 19. Insert greased left-hand pivot pin through the left-hand elevation pivot bracket and A-frame. Hold in place and drive two spring pins

33N074 Rev M 3-24 into the pivot pin (one on each side of the elevation pivot bracket).

Secure the spring pins with safety wire (See Figure 3.14).

Figure 3.14. Installation of Elevation Pivot Brackets

STEP 20. Insert greased right-hand shouldered pivot pin (threaded end facing inward) through the right-hand elevation pivot bracket and A-frame.

Secure with castle nut, first by hand tightening the castle nut, then loosening the castle nut just enough to align one of the slots in the castle nut with the hole in the end of pivot pin. Drive spring pin through slot in castle nut and right-hand shouldered pivot pin. Secure with safety wire. (See Figure 3-14.)

STEP 21. Support left-hand elevation pivot bracket and right-hand elevation pivot bracket using a wooden 2 x 4 (not supplied). (See Figure 3-14.)

33N074 Rev M 3-25

Wooden 2 x 4 will be removed after mount assembly is complete.

STEP 22. Lift hub onto left-hand elevation pivot bracket and right-hand elevation pivot bracket. Locate welded seam in hub and position seam to the front of the A-frame (viewed from front clamps of A-frame).

Bolt hub to elevation pivot brackets using 1/2-13 x 2 1/2-inch bolt, washer, and nut, four places. (See Figure 3-15.)

STEP 23. Bolt the upper actuator attachment bracket to the hub using 1/2-13 x 2 1/2-inch bolt, washer, and nut, two places. (See Figure 3-15.)

Figure 3.15. Attachment of Hub to A-Frame

33N074 Rev M 3-26

STEP 24. Attach the upper ends of the three hub braces to the hub using 3/8-16 x 1 1/2-inch bolt, washer, and nut, twelve places. Bolt the lower end of the hub braces to the elevation pivot brackets and the upper actuator attachment bracket using 1/2-13 x 2 1/2-inch bolt, washer, and nut, six places. Torque 3/8-inch bolts at upper end of hub braces to 31 ft.-Ibf. The front clamp and rear clamp, should not be tightened until the antenna is aimed at desired satellite. (See Figure 3.16.)

Figure 3.16. Installation of Hub Braces

STEP 25 Insert actuator pivot shaft into upper actuator attachment bracket and secure using retainer rings, two places. Thread 1-1/4 jam nut onto actuator screw until it contacts the welded nut, and then slide actuator sleeve onto actuator screw. (See Figure 3.17.)

33N074 Rev M 3-27

STEP 26. Thread actuator screw (with actuator sleeve and 1-1/4 jam nut attached) through actuator nut and slide thrust washer over end of actuator screw. Continue to thread actuator screw through actuator nut and into actuator pivot shaft. Slide another thrust washer over end of actuator screw. Secure with slotted nut, first by hand tightening the nut, then loosening just enough to align one of the slots in the nut with the hole in the end of actuator screw. Drive spring pin into the actuator screw and secure with safety wire. (See Figure 3.17.)

WARNING

Ensure that the spring pin (300194) and safety wire (300452) are properly installed in the slotted castle nut (300191). If not properly secured, the castle nut could detach from the elevation screw due to vibration or screw rotation. Failure to observe this warning may result in antenna damage and injury to personnel.

STEP 27. Turn the elevation actuator screw clockwise until the hub assembly is no longer supported by the wooden 2 x 4; then remove the 2 x 4. (See Figure 3.17.)

CAUTION

Do not try to rotate the A-frame and hub assembly in azimuth using actuator screw or hub brace. Such action could damage the actuator screw or hub assembly.

33N074 Rev M 3-28

Figure 3.17. Actuator Installation

33N074 Rev M 3-29

3.7 Assembly Of Reflector

The following procedure describes the complete assembly of the reflector, which includes the reflector hub, panels, ribs, and braces:

CAUTION

If it is necessary to walk inside the reflector during assembly, walk only on the portion of the reflector closest to the hub and directly over the ribs. Any weight placed on unsupported areas of the reflector can deform the panel curvature, and severely degrade antenna performance.

STEP 1. Adjust the elevation actuator until the hub flanges are near horizontal.

NOTE

Install all hardware loosely (unless otherwise instructed) until assembly of the reflector is complete. The recommended tightening procedure is provided at the appropriate stage of installation.

Install spring pins in the hub top and bottom, and the straight end of the panel braces where they will be attached to the ribs.

STEP 2. Attach the bent end of a panel brace (flat side down) onto the lower hub flange using either a 1/2-13 x 1- 1/2 bolt and nut or a 1/2-13 x 2- 1/2 bolt and nut (previously installed to attach the elevation pivot and upper actuator attachment brackets to the lower flange). Use washer on nut side of joint. Tighten the 1/2-13 bolt to no more than 2 ft-lbs. This is connection "A".

CAUTION

Do not apply any weight to the panel brace before it is attached to its rib. This could bend the brace near the hub flange.

33N074 Rev M 3-30

STEP 3. Attach a rib to the underside of the upper hub flange and onto the spring pin. Fasten with a 3/8-16 x I- 1/4 bolt and nut. This is connection "B". Support the rib by hand until STEP 4 is completed.

Refer to Figure 3-18.

STEP 4. Attach the upper end of the panel brace to the rib so that the spring pin is fully inserted through both parts. Fasten using a 3/8-16 x 1-1/4 bolt, washer, and nut. This is connection "C". Tighten the 3/8-16 bolts of connections "B" and "C" to 31 ft-lbs. Refer to Figure 3-18.

Repeat STEPs 2 through 4 above until all panel braces and ribs have been installed. (Note that the bolt and nut for six of the panel brace attachment points at the bottom of the hub will already be in place, holding the hub to the pivot brackets and upper actuator bracket.)

STEP 5. Use the supplied rib setting template to ensure that the ribs are properly set for the most accurate reflector surface.

a. Place the template on the top of the hub using two tapered dowel pins as shown in Figure 3-19. Hold the template flat against the top of the Hub and examine the alignment of the hole at the small end of the template with the hole below it in the rib. If the holes are not aligned, the bolt at connection "A" must be loosened just enough to allow movement.

33N074 Rev M 3-31

Figure 3.18. Assembly and Adjustment

Figure 3.19. Template Installation

33N074 Rev M 3-32

b. If the holes are not aligned laterally, the bolt at connection "B " must be loosened just enough to move the rib and align the holes.

After moving the rib, retighten the bolts.

c. With the rib and template holes aligned laterally, inspect the longitudinal alignment.

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated .