Andrew 9.3-Meter ESA manual Meter Earth Station Antenna, Introduction

Page 3

9.3-Meter Earth Station Antenna

Introduction

Like all Andrew earth station antennas, the 9.3-Meter Earth Station Antenna provides high gain and exceptional pattern characteristics. The electrical performance and excep- tional versatility provides the ability to configure the antenna with your choice of linearly- or circularly-polarized 2-port or 4-port combining network. That versatility is provided at the time of initial purchase, as well as in the future, as your satellite communication requirements evolve.

The aluminum reflector is precision formed for accuracy and strength requiring minimal assembly. The reflector assembly is 30-feet (9.3-meters) in diameter and segmented in a twenty piece configuration to reduce shipping volume and facilitate transport to remote sites. Reflector panels are chromate converted and painted with a highly reflective white paint.

The versatile tripod mount can be purchased with motorizable capabilities. The tripod mount features 180 degree azimuth coverage in three continuous 120 degree overlap- ping ranges and executes 90 degree continuous elevation adjustment. This large adjust- ment range provides non-critical foundation orientation and the ability to view geosta- tionary satellites from horizon-to-horizon, from any location worldwide.

The motorizable tripod mount features self-aligning bearings for the elevation pivots, resulting in "zero" backlash. This mount has the ability to be upgraded for High-Speed motorized operation, including steptracking/Smartrack™ applications. The motorizable mount type is indicated by the ES93 or ES93HS letters within the antenna type number. The addition of the letter "HS" within the antenna type number indicates that the mount includes High-Speed azimuth/elevation machine jackscrews. The azimuth/elevation jackscrews are equipped for integration with the optional motor drive systems. A cross- axis grounding kit is supplied with each mount to ensure electrical interconnectivity of the complete structure.

The aluminum enclosure and hot-dipped galvanized steel mount maintain pointing accu- racy and ensures durability and reliability. The antenna and mount with enclosure will survive 125 mph (200 km/h) wind, in any position of operation, without damage or per- manent deformation in moderate coastal/industrial areas. Severe conditions require additional protection.

Andrew provides a complete line of available options, including motor drive systems (with power interfaces addressing domestic and international standards), remote micro- processor antenna control for motor drive systems, pressurization equipment, and inter- connecting HELIAX® cables and waveguide.

3

Introduction

Image 3
Contents Meter ESA Table of Contents Introduction Meter Earth Station AntennaProprietary Data Information and Assistance Technical Customer Service CenterHow to Use This Manual Overview ContentGetting Started OverviewTool Size Quantity Recommended ToolsGetting Started Returning Equipment Step Overview Foundation Preparation Installation Procedures1b A-325 Tensioning For bolts over four diameters Tensioning StepTripod Ground Mount Assembly Azimuth Beam Step Step Support Legs Assembly Step Step 20008A Step Panning Frame Assembly Step X 3 LG mm 200031A Flatwashers Azimuth Pivot Assembly 301786 Azimuth Jack Screw Assembly Step Step Step Elevation Jackscrew Assembly Step Step Grounding Cable Attachment Step Step Installation Procedures Step Jack Tripod Assembly Step Reflector Assembly Step Step Step Step Subreflector Assembly Step Step Theodolite Assembly Installation Step Step Theodolite Leveling Step Step Theodolite Centering Step Theodolite Height Adjustment Reflector Panel Adjustment Step Installation Procedures Subreflector Adjustment Step Offset Operating Angle Top Stud Nut Adjustment Subreflector Offset Tilt Adjustment StepInstallation Procedures Step Operation Overview Acquiring a SatelliteStep Polarization at 45 degrees from Optimum Setting Maximizing Odd Transponders Subreflector Adjustment Preventive Maintenance Overview General Cleaning Electrical PartsPreventive Maintenance Antenna Preventive Maintenance Drive System Voltage Current Checks Step Step Preventive Maintenance Jackscrews/Motors Gear Motor/Housing Fill Drain Requirements Lubrication Chart High-Speed Antenna Lubrication Points Medium-Speed Antenna Lubrication Points Appendix ‘A’ Appendix ‘B’