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Like all Andrew earth station antennas, the 4.5-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 trans-
mit/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). The versatility is pro-
vided at the time of initial purchase, as well as in the future, as your satellite communi-
cations requirements evolve. This manual covers the manual Tripod only.
The segmented aluminum reflector panels are precision formed for accuracy and
strength. The 6-piece reflector panel design ensures that the assembled reflector will
maintain the extremely 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 range of adjustment provides
the ability to view geostationary satellites from horizon-to-horizon, from any location
within the continental United States. The broad mount leg spacing enable 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 potential
to be upgraded for motorized operation, including steptracking/Smartrack
TM
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 indi-
cates that the mount includes azimuth/elevation machine jackscrews, instead of corre-
sponding azimuth and elevation strut assemblies. The azimuth/elevation jackscrews are
equipped for integration with the optional motor drive systems.
A manual pedestal mount is also available. It provides the same strong and versatile
combination of mechanical features as the motorizable version; except that the elevation
and azimuth axes are locking types, instead of bearing mounted types. This mount type
is always equipped with manual struts and a fixed mount for the separately ordered
combining network. This mount has been designed for manual applications only and
cannot be upgraded to a motorizable mount.
The aluminum back structure and hot-dipped galvanized steel mount maintains pointing
accuracy and ensures durability and reliability. The antenna and mount will survive 125
mph (200 km/h) wind, in any position of operation, without damage or permanent defor-
mation.
Andrew provides a complete line of available options, including field-installable electrical
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 Andrew
and can be utilized as an installation tool for multiple installation purposes.
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Introduction
Introduction