ViaSat Series 8345, Installation Manual

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Chapter 1 - General Information
to a specific heading, thereby eliminating the possibility of installation errors
associated with foundation centerlines.
The parabolic reflector consists of twelve precision stretch stamped steel
panels for consistent surface accuracy. The twelve panels are uniform and
completely interchangeable, resulting in handling convenience, lower
shipping costs and easy installation. Once a foundation has been prepared,
three people can install the antenna in one day.
NOTE
The mount load frame weight is approximately 250 lbs. A
minimum of three people shall be used to manually place the
load frame on the azimuth ring. An optional hoisting device
may also be used during installation.
Each of the optional feeds offered with the Series 8345 4.5M Prime Focus
Motorized 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. Both are available in motorized polarization versions. Also
available are Ku-band receive-transmit versions.
1.3 Stability During High Winds
The reflector mount and motorized actuators are designed to withstand high
winds. The azimuth and elevation actuators will drive the antenna in an
85 mi/hr wind at any orientation with no ice.
The antenna will survive 110 mi/hr winds at any orientation with no ice.
Antenna survival at 125 mi/hr winds from any direction with no ice is also
achievable by driving the elevation axis to a 90° stow position.
42S199F 1-2