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Sea Tel ST144-21 - User Manual

Sea Tel ST144-21
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Sea Tel, Inc.
4030 Nelson Avenue
Concord, CA 94520
Tel: (925) 798-7979
Fax: (925) 798-7986
Web: http://www.cobham.com/seatel
Sea Tel Europe
Unit 1, Orion Industrial Centre
Wide Lane, Swaythling
Southampton, UK S0 18 2HJ
Tel: 44 (0)23 80 671155
Fax: 44 (0)23 80 671166
Web: http://www.cobham.com/seatel
Sea Tel Inc is also doing business as Cobham Antenna Systems
August 2, 2012 Document. No. 135635 Revision B
INSTALLATION AND OPERATION MANUAL
FOR SEA TEL MODEL
ST144-21 DUAL C/QUAD KU-BAND TVRO ANTENNA

Table of Contents

Questions and Answers

Summary

Introduction to the ST144-21 Antenna System

General Description of System

Overview of the stabilized antenna system's design and operation.

System Purpose

Explains the shipboard Television Receive Only (TVRO) system's function.

System Components

Details the main groups of equipment: Above-Decks (ADE) and Below-Decks.

Dual Antenna Configuration

Describes setting up two antenna systems for uninterrupted service.

Dual Antenna Arbitrator

Explains the function of the arbitrator panel in dual antenna setups.

General Scope of this Manual

Outlines the content covered in this installation and operation manual.

Site Survey Guidelines for Installation

Site Selection Aboard Ship

Criteria for choosing the optimal mounting location for the antenna.

Antenna Shadowing and RF Interference

Identifies potential obstructions and their impact on signal quality.

Mounting Foundation Requirements

Details specifications for the antenna pedestal and its mounting.

Mounting Height and Fore-Aft Location

Discusses the impact of mounting position on system performance.

Mast Configurations

Describes different mast types and their suitability for antenna mounting.

Safe Access to the ADE

Safety procedures for accessing the Above Decks Equipment.

Below Decks Equipment Location

Guidance on positioning the ACU and other below-deck components.

Cables and Routing

Information on cable types, installation practices, and routing.

Antenna System Installation Procedures

General Cautions & Warnings

Important safety precautions and warnings before installation.

Preparing for Installation

Steps to prepare the equipment and location before installation.

Assembling the ADE

Detailed steps for assembling the Above Decks Equipment.

Installing The ADE

Procedure for hoisting and mounting the complete ADE assembly.

Installing the Below Decks Equipment

Steps for installing ACU, modems, and other rack-mounted equipment.

Connecting the Below Decks Equipment

Wiring instructions for connecting various below-decks components.

Final Assembly and Cable Terminations

Completing the assembly and making final cable connections.

System Power-Up Sequence

Instructions for powering on the ACU and ADE for the first time.

Basic ACU Setup and Configuration

Operator Settings

Configuration of ship and satellite information.

SETUP Parameter Display and Entry

Navigating and accessing system setup menus.

TRACK DISP Settings

Configuring the display settings for tracking operations.

ACU Factory Default Parameters

Default parameter values for STxxx-21 Series Antennas.

Setup: Ships Gyro Compass Integration

GYRO TYPE Parameter Selection

Selecting the correct gyro compass interface signal type.

Updating GYRO TYPE Parameter

Procedure for manually updating the gyro type setting.

Operation Without Ships Gyro Compass

Guidance for systems lacking a gyro compass input.

Internal Tracking Receiver Settings

IF Tracking Frequency Setup

Determining and entering the IF Tracking Frequency parameter.

Baud Rate Configuration

Setting the correct Baud Rate for satellite tracking.

FEC Rate Setup

Configuring the Forward Error Correction rate for tracking.

Tone Settings for TVRO

Configuring the 22 KHz tone for band selection.

Volt Settings for TVRO Applications

Selecting receiver voltage for proper polarization selection.

NID Parameter Configuration

Setting the Network Identification parameter for tracking.

Setup: Home Flag Offset Calibration

Electronic Calibration of Relative Antenna Position

Calibrating the antenna's relative position to the ship's bow.

Antenna Targeting Optimization

AUTO TRIM Function

Automatically calculates and sets Azimuth/Elevation trim offsets.

Manually Optimizing Targeting

Procedure for manual adjustment of Azimuth and Elevation targeting.

EL TRIM Adjustment

Adjusting the Elevation trim offset for antenna alignment.

AZ TRIM Adjustment

Adjusting the Azimuth trim offset for alignment compensation.

Saving New Parameters

Procedure to save changes made to system parameters.

Antenna Searching Setup

Searching Operation Modes

Describes how the ACU initiates and conducts satellite searches.

Changing Search Parameters

Details on adjusting parameters for search patterns.

Saving New Search Parameters

Procedure to save modified search parameters.

Setup: Blockage & RF Radiation Hazard Zones

Radiation Hazard and Blockage Mapping

Programming relative azimuth sectors (zones) for blockage or hazard.

System Setup Procedures

Operator Settings Configuration

Setting ship information, satellite data, and initial heading.

Optimizing Targeting (Auto Trim)

Using Auto Trim to automatically optimize targeting parameters.

Optimizing Targeting (Manually)

Manual process for optimizing targeting accuracy.

Radiation Hazard and Blockage Mapping

Configuring zones where blockage or transmit power is a concern.

TX Polarity Setup

Adjusting transmit port polarity for optimal signal.

TRACK DISP Settings

Selecting user display options for the Tracking menu.

Functional Testing Procedures

ACU; Antenna System Check

Verifying system initialization and display responses.

Latitude;Longitude Auto-Update Check

Confirming that GPS position information is updating.

Ship Heading - Gyro Compass Following Check

Verifying that the Heading display follows the Gyro Compass.

Azimuth & Elevation Drive Test

Testing antenna movement in response to control inputs.

Four Quadrant Tracking Test

Verifying antenna response and tracking accuracy.

Blockage Simulation Test

Testing the blockage output function and SW2 logic.

Maintenance and Troubleshooting Guide

Warranty Information

Details on the system's warranty coverage.

Recommended Preventive Maintenance

Routine checks and maintenance tasks for the antenna system.

400 MHz Modem Configuration

Configuring jumper settings for the 400MHz FSK modem.

400 MHz LED Indicators

Interpreting LED status indicators for modem diagnostics.

400 MHz Modem Signals

Details on modem signal paths and frequencies.

Troubleshooting 400 MHz Modem Faults

Procedures for diagnosing communication failures between modems.

General Troubleshooting

Overview of system troubleshooting concepts and methods.

Pedestal Control Unit Configuration

Configuring the PCU for specific antenna pedestal models.

Antenna Stowing Procedure

Steps to properly secure the antenna pedestal during transit.

ST144-21 Technical Specifications

14400 Antenna Reflector Specifications

Technical details of the antenna reflector assembly.

Feed Assemblies Specifications

Details on C-Band and Ku-Band feed assemblies.

Series 00 Stabilized Antenna Pedestal

Specifications for the stabilized antenna pedestal.

MK 2 Pedestal Control Unit (PCU) Specs

Technical details of the Pedestal Control Unit.

MK 2 Motor Driver Enclosure (MDE) Specs

Specifications for the Motor Driver Enclosure.

400 MHz Modems Specifications

Technical details for the 400 MHz modems.

168” Radome Assembly Specifications

Details on the radome assembly's dimensions and properties.

Environmental Conditions (ADE)

Operating temperature, humidity, and wind specifications.

Cable Specifications

Details on antenna control and L-Band coax cables.

Model ST144-21 Drawings

Model ST144-21 Specific Drawings

List of specific drawings for the ST144-21 model.

Series 00 General Drawings

List of general drawings applicable to Series 00 systems.

Sea Tel ST144-21 Specifications

General IconGeneral
Stabilization3-axis
TypeStabilized Antenna
Mount TypePedestal
Environmental RatingDesigned for harsh marine environments
Frequency RangeKu-band, C-band

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