ST94-21 C/Ku-Band TVRO
Installation
3-25
CAUTION:
The antenna/radome assembly is very light for its size and is subject to
large swaying motions if hoisted under windy conditions. Always ensure that tag lines,
attached to the radome base frame, are attended while the antenna assembly is being
hoisted to its assigned location aboard ship.
1.
Assure that the antenna is restrained before hoisting. Check that all nuts on the base frame assembly
are tightened according the torque values listed below:
2.
Using a four-part lifting sling, and with a tag line attached to the radome base frame, hoist the
antenna assembly to its assigned location aboard ship by means of a suitably-sized crane or derrick.
1.
The radome assembly should be positioned with the BOW marker aligned as close as possible to the
ship centerline. Any variation from actual alignment can be compensated with the AZIMUTH TRIM
adjustment in the ACU, so precise alignment is not required.
3.9.2.
Install Antenna/Radome/Baseframe
Bolt, or weld, the legs of the radome base frame directly to the ship's deck. If the deck is uneven or not level,
weld clips to the deck and attach them to the legs of the radome base frame. When completed the radome
base must be level.
3.10.
Installing the Below Decks Equipment.
Installing the Antenna Control Unit, Base Multiplexer Panel and the Terminal Mounting Strip.
3.10.1.
General Cautions & Warnings
CAUTION - Electrical Shock Potentials exist on the Gyro Compass output lines.
Assure that the Gyro Compass output is turned OFF when handling and connecting
wiring to the Terminal Mounting Strip.
CAUTION - Allow only an authorized dealer to install or service the your Sea Tel
System components. Unauthorized installation or service can be dangerous and may
invalidate the warranty.
3.10.2.
Preparing BDE Location
Prepare the Rack (or other location) for the ACU, Terminal Mounting Strip and base multiplexer panel.
Prepare the mounting locations for the other Below Decks Equipment throughout ship.
3.10.3.
Installing the Below Deck Equipment
1.
Install the ACU in the front of the standard 19” equipment rack or other suitable location. The DAC-
2202 ACU is one rack unit high.
2.
Install the Terminal Mounting Strip on the rear of the 19” equipment rack or other suitable location
that is within 6 feet of the rear panel connections of the ACU. It also is one rack unit height.
3.
Install the Base Multiplexer Panel on the rear of the 19” equipment rack or other suitable location
that is within 6 feet of the rear panel connections of the ACU. It is four rack unit height.
4.
Install the Line Amplifier Panel on the rear of the 19” equipment rack or other suitable location that
is within 6 feet of the Base Multiplexer Panel. It is four rack unit height.
5.
Install your Satellite Modem, Router, VOIP adapters, Telephone equipment, Fax machine, Computers
and any other below decks equipment that are part of your installation.
3.11.
Connecting the Below Decks Equipment
Connect this equipment as shown in the System Block Diagram.
EAR Controlled - ECCN EAR99
Summary of Contents for ST94-21
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