Technical information
OM45P_Rev J Page 4 of 28
INTRODUCTION: How to Use This Manual
I.I Purpose & Overview
PURPOSE
The scope of this manual is intended to provide station personnel with the base installation, operation, and
maintenance requirements necessary for a 4.5-Meter C-, X- or Ku-Band Earth Station Antenna. This manual
provides a convenient reference for authorized operator/service personnel requiring technical information on
general system or specific subsystem equipment.
Top Level Assembly Numbers are as follows:
4.5m Tripod High Wind: ES45T-HW-1 4.5m w/ Manual Pedestal Mount: ES45P-1
4.5m w/ Motorizable Mount: ES45MP-1 4.5m Receive Only w/ Tripod: ES45T-R-1
4.5m w/ Motorizable Pedestal Mount: ES45MPJ-1 4.5m Trans/Rec. w/ Low Look Tripod: ES45T-T-1
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OVERVIEW
The installation, operation, and maintenance of the 4.5-Meter Earth Station Antenna require qualified and
experienced personnel. ASC Signal installation, operation, and maintenance instructions are illustrated for
such personnel. Additionally, the antenna should be inspected by qualified personnel to verify proper
installation, maintenance, and condition of equipment as described in Preventive Maintenance. The basic
equipment and accessories are either manufactured or design controlled by ASC Signal Corporation.
The prerequisite information necessary for the 4.5-Meter Earth Station Antenna can be found in this section.
Furthermore, this section should be reviewed before performing the installation, operation, or maintenance.
Warnings, recommended tools, and the antenna parts can be verified and/or determined with such a review.
I.II Description
The 4.5-Meter Earth Station Antenna provides high gain and exceptional pattern characteristics. The electrical
performance and exceptional versatility provides the ability to configure the antenna with your choice of
transmit/receive as well as receive only, and for either linearly- or circularly-polarized C-Band, linearly polarized
Ku-Band, Hybrid C-/Ku-Band, or X-Band operation. Both pedestal and tripod mount types are available
(motorization for pedestal only). Versatility is provided at the time of initial purchase, as well as in the future, as
your satellite communication requirements evolve.
The segmented aluminum reflector panels are precision formed for accuracy and strength. The 6-piece
reflector panel design ensures the assembled reflector will maintain accurate surface contour and guaranteed
performance without reflector alignment.
The versatile tripod mount features 164° of coarse Azimuth coverage in four overlapping ranges, and 90°
coarse Elevation adjustment. This large adjustment range provides the ability to view geostationary satellites
from horizon-to-horizon, from any location worldwide. The broad mount leg spacing enables efficient load
transfer to the foundation, providing additional mount rigidity.
The motorizable pedestal mount features self-aligning bearings for the elevation pivots, resulting in "zero"
backlash. This mount can be operated manually, but has the ability to be upgraded for motorized operation,
including step-tracking or SmarTrack
®
applications. The motorizable mount type is indicated by the ES45MP or
ES45MPJ letters within the antenna type number. The addition of the letter "J" within the antenna type number
indicates that the mount includes Azimuth/Elevation machine jackscrews, instead of corresponding
Azimuth/Elevation strut assemblies. The Azimuth/Elevation jackscrews are equipped for integration with the
optional motor drive systems.
The aluminum back structure and hot-dipped galvanized steel mount maintain pointing accuracy while
ensuring durability and reliability. The antenna and standard manual mount will survive 125 mph (200 km/h)
wind, in any position of operation, without damage or permanent deformation in moderate coastal/industrial
areas. Severe conditions require additional protection.
ASC Signal Corporation provides complete system engineering if required, as well as additional option such as
anti-icing heaters, pressurization equipment, and interconnecting HELIAX cables and waveguide. An optional
Hoisting Kit, which precludes the use of a crane, is available from ASC Signal as an installation tool for multiple