Sea Tel DAC-03 Manual de usuario

Sea Tel, Inc.

4030 Nelson Avenue

Concord, CA 94520

Tel: (925) 798-7979

Fax: (925) 798-7986

Email: seatel@cobham.com

Web: 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

Email: seatel@cobham.com

Web: www.cobham.com\seatel

Sea Tel Inc doing business as Cobham SATCOM

October 29, 2008 Document. No. 123866 Revision C2

INSTALLATION AND OPERATION MANUAL

FOR SEA TEL MODEL

DAC-03 TRACKING ANTENNA CONTROLLER

(with 70 or 140 MHz SCPC Narrow Band Receiver)

FOR UNLIMITED ANTENNA SYSTEMS

These commodities, technology or software were exported from the

United States in accordance with the Export Administration Regulations.

Diversion contrary to U.S. law is prohibited.

Sea Tel Marine Stabilized Antenna systems are manufactured in the

United States of America.

Sea Tel is an ISO 9001:2000 registered company. Certificate Number 19.2867 was

issued August 12, 2005. Sea Tel was originally registered on November 09, 1998.

The DAC-03 Antenna Control Unit (exclusively for use with Sea Tel Marine Stabilized

Antenna Pedestals) complies with the requirements of European Norms and European

Standards EN 60945 (1997) and prETS 300 339 (1998-03). Sea Tel European Union

Declaration of Conformity for this equipment is contained in this manual.

document may not be reproduced or distributed in any form without the consent of Sea Tel, Inc.

The information in this document is subject to change without notice.

DAC-03 Tracking Antenna Controller Introduction

iii

Revision History

REV ECO# Date Description By

A N/A December 17, 2004 Initial Production Release MDN

B N/A September 29, 2005 Updated text & drawings. Added FCC TX Mute compliance

installation and testing information

MDN

C N/A April 17 2006 MDN

C1 N/A October 29, 2008 Update logo and font MDN

Table of Contents

1. INTRODUCTION ......................................................................................................................................................................1-1

1.1. CHARACTERISTICS.....................................................................................................................................................................1-1

1.2. DAC-03 FUNCTIONAL DESCRIPTION ..................................................................................................................................1-1

1.3. KEYBOARD ENTRY ......................................................................................................................................................................1-1

1.4. STATUS LEDS ............................................................................................................................................................................1-1

1.5. GENERAL DESCRIPTION OF SYSTEM.......................................................................................................................................1-2

1.6. GENERAL SCOPE OF THIS MANUAL.........................................................................................................................................1-2

1.7. QUICK OVERVIEW OF CONTENTS...........................................................................................................................................1-2

2. OPERATION.................................................................................................................................................................................2-1

2.1. QUICK START OPERATION.......................................................................................................................................................2-1

2.2. FRONT PANEL LAYOUT .............................................................................................................................................................2-2

2.3. BASIC KEYBOARD ENTRY..........................................................................................................................................................2-2

2.4. BASIC DESCRIPTION OF FRONT PANEL KEYS AND THEIR FUNCTIONS.............................................................................2-2

2.5. DISPLAY &ENTRY OPERATION MENU ..................................................................................................................................2-4

2.5.1. SHIP information menus....................................................................................................................................2-4

2.5.2. SAT information menus.......................................................................................................................................2-5

2.5.3. ANTENNA information menus. .......................................................................................................................2-6

2.5.4. MODE Control & Status menus.......................................................................................................................2-9

2.5.5. SETUP Parameter display and entry menus.......................................................................................... 2-10

2.6. TRACKING OPERATION..........................................................................................................................................................2-10

2.6.1. DishScan Operation............................................................................................................................................ 2-10

2.6.2. Internal Tracking Receiver settings........................................................................................................... 2-11

2.6.3. C/X and Ku Band Selections........................................................................................................................... 2-11

2.7. SEARCHING OPERATION........................................................................................................................................................2-11

2.7.1. Default Standard (Box) Search Pattern ................................................................................................... 2-11

2.7.2. Inclined Orbit Search Pattern....................................................................................................................... 2-12

2.7.3. No Gyro Search Pattern................................................................................................................................... 2-13

2.8. AUTO-POLARIZATION OPERATION.....................................................................................................................................2-14

2.9. RADOME ASSEMBLY OPERATION ........................................................................................................................................2-14

3. BASIC SYSTEM INFORMATION....................................................................................................................................3-1

3.1. SATELLITE BASICS .....................................................................................................................................................................3-1

3.1.1. C-Band Receive Frequency (3.7-4.2GHz) ...................................................................................................3-1

3.1.2. Ku-Band Receive Frequency (10.95-12.75GHz)......................................................................................3-1

3.1.3. Blockage......................................................................................................................................................................3-1

3.1.4. Rain Fade.....................................................................................................................................................................3-1

3.1.5. Signal level..................................................................................................................................................................3-2

3.1.6. Satellite Footprint Charts...................................................................................................................................3-2

3.1.7. Linear Satellite polarization...............................................................................................................................3-2

3.2. ANTENNA BASICS......................................................................................................................................................................3-3

3.2.1. Azimuth........................................................................................................................................................................3-3

3.2.2. Elevation......................................................................................................................................................................3-3

3.2.3. Antenna polarization............................................................................................................................................3-3

3.2.4. Stabilization...............................................................................................................................................................3-4

3.2.5. Narrow Band Tracking Receivers....................................................................................................................3-4

Table of Contents

3.2.6. Tracking....................................................................................................................................................................... 3-4

3.3. COMPONENTS OF THE SYSTEM CONFIGURATION ............................................................................................................. 3-4

3.3.1. Antenna ADE Assembly...................................................................................................................................... 3-4

3.3.2. Antenna Control Unit........................................................................................................................................... 3-4

3.3.3. Below Decks AC Power Supply........................................................................................................................ 3-5

3.3.4. Other Below Decks Equipment ....................................................................................................................... 3-5

4. INSTALLATION.........................................................................................................................................................................4-1

4.1. GENERAL CAUTIONS &WARNINGS ...................................................................................................................................... 4-1

4.2. SITE SURVEY............................................................................................................................................................................... 4-1

4.3. PREPARING FOR THE INSTALLATION..................................................................................................................................... 4-1

4.3.1. Unpack Shipping Crates and Inspect / Inventory ................................................................................ 4-1

4.3.2. Preparing BDE Location...................................................................................................................................... 4-1

4.3.3. Read the Installation Information................................................................................................................ 4-1

4.3.4. Plan The Install........................................................................................................................................................ 4-1

4.3.5. The Installing Cables............................................................................................................................................ 4-1

4.4. INSTALL THE ACU..................................................................................................................................................................... 4-2

4.5. INSTALL THE TERMINAL MOUNTING STRIP (TMS) .......................................................................................................... 4-2

4.6. INSTALL THE BASE MULTIPLEXER PANEL ............................................................................................................................. 4-2

4.7. TERMINAL MOUNTING STRIP (TMS) CONNECTIONS...................................................................................................... 4-2

4.8. PEDESTAL CONTROL CONNECTION ....................................................................................................................................... 4-4

4.9. AC POWER TO THE ACU........................................................................................................................................................ 4-4

4.10. AGC TRACKING CONNECTION............................................................................................................................................... 4-4

4.11. MONITOR AND CONTROL CONNECTIONS........................................................................................................................... 4-4

4.12. INSTALL OTHER BDE EQUIPMENT......................................................................................................................................... 4-4

4.13. FINAL CHECKS............................................................................................................................................................................ 4-4

4.13.1. Visual/Electrical inspection............................................................................................................................... 4-4

4.13.2. Electrical - Double check wiring connections......................................................................................... 4-4

4.14. POWER-UP.................................................................................................................................................................................. 4-4

4.15. SETUP........................................................................................................................................................................................... 4-5

5. SETUP ..............................................................................................................................................................................................5-1

5.1. OPERATOR SETTINGS................................................................................................................................................................ 5-1

5.2. TRACKING AND BAND SELECTION SETTINGS ..................................................................................................................... 5-1

5.3. DEFAULT SETUP PARAMETERS ............................................................................................................................................... 5-1

5.3.1. EL TRIM....................................................................................................................................................................... 5-1

5.3.2. AZ TRIM...................................................................................................................................................................... 5-1

5.3.3. AUTO THRES............................................................................................................................................................. 5-2

5.3.4. EL STEP SIZE............................................................................................................................................................ 5-2

5.3.5. AZ STEP SIZE........................................................................................................................................................... 5-2

5.3.6. STEP INTEGRAL ...................................................................................................................................................... 5-2

5.3.7. SEARCH INC ............................................................................................................................................................. 5-2

5.3.8. SEARCH LIMIT ........................................................................................................................................................ 5-2

5.3.9. SEARCH DELAY........................................................................................................................................................ 5-3

5.3.10. SWEEP INC................................................................................................................................................................ 5-3

5.3.11. SYSTEM TYPE ........................................................................................................................................................... 5-3

Table of Contents

vii

5.3.12. GYRO TYPE .................................................................................................................................................................5-3

5.3.13. POLANG TYPE...........................................................................................................................................................5-4

5.3.14. POL OFFSET...............................................................................................................................................................5-4

5.3.15. POL SCALE..................................................................................................................................................................5-4

5.3.16. Radiation Hazard and Blockage Mapping (AZ LIMIT parameters)..............................................5-4

5.3.17. TX Polarity..................................................................................................................................................................5-7

5.3.18. TRACK DISP (your software may not have this setting)....................................................................5-7

5.3.19. SAVE NEW PARAMETERS...................................................................................................................................5-8

5.3.20. REMOTE COMMAND............................................................................................................................................5-8

5.3.21. REMOTE MONITOR...............................................................................................................................................5-8

5.3.22. DISHSCAN..................................................................................................................................................................5-8

5.3.23. SAT REF........................................................................................................................................................................5-8

5.3.24. REMOTE TILT ...........................................................................................................................................................5-8

5.3.25. REMOTE PARAMETERS.......................................................................................................................................5-8

6. FUNCTIONAL TESTING ......................................................................................................................................................6-1

6.1. ACU /ANTENNA SYSTEM CHECK..........................................................................................................................................6-1

6.2. LATITUDE/LONGITUDE AUTO-UPDATE CHECK...................................................................................................................6-1

6.3. SHIP HEADING –GYRO COMPASS FOLLOWING CHECK....................................................................................................6-1

6.4. CHECK TRACKING RECEIVER SETTINGS................................................................................................................................6-1

6.5. AZIMUTH &ELEVATION DRIVE..............................................................................................................................................6-2

6.6. FOUR QUADRANT TRACKING TEST .......................................................................................................................................6-2

6.7. BLOCKAGE SIMULATION TEST................................................................................................................................................6-2

6.8. CHECK ACU PARAMETERS (YOUR SOFTWARE MAY NOT HAVE ALL OF THESE SETTINGS).........................................6-4

7. MAINTENANCE & TROUBLESHOOTING .................................................................................................................7-1

7.1. GENERAL CAUTIONS &WARNINGS.......................................................................................................................................7-1

7.2. TROUBLESHOOTING THE ACU ...............................................................................................................................................7-1

7.2.1. Display is blank ........................................................................................................................................................7-1

7.2.2. Power-up displays “REMOTE NOT RESPONDING”................................................................................7-1

7.2.3. NMEA GPS Checkout............................................................................................................................................7-2

7.2.4. Auxiliary Serial Port Adapter (J11) Checkout...........................................................................................7-2

7.2.5. Check Parameters Settings ...............................................................................................................................7-2

7.3. TROUBLESHOOTING SHIPS GYRO COMPASS PROBLEMS ...................................................................................................7-2

7.3.1. STEP-BY-STEP...........................................................................................................................................................7-2

7.3.2. 1:1 SYNCHRO ............................................................................................................................................................7-2

7.3.3. 360:1 Synchro ..........................................................................................................................................................7-3

7.4. DISPLAY OFFSETS /OPTIMIZING TARGETING ....................................................................................................................7-4

7.5. PEDESTAL CONTROL UNIT CONFIGURATION......................................................................................................................7-4

7.6. PROGRAMMING INSTRUCTIONS ANTENNA CONTROL UNIT ...........................................................................................7-4

8. DAC-03 W/SCPC RECEIVER TECHNICAL SPECIFICATIONS.....................................................................8-1

8.1. GENERAL ......................................................................................................................................................................................8-1

8.2. FRONT PANEL..............................................................................................................................................................................8-1

8.3. REAR PANEL.................................................................................................................................................................................8-1

8.4. RS-232 MONITOR AND CONTROL INTERFACE ..................................................................................................................8-1

8.5. NMEA INTERFACE ....................................................................................................................................................................8-2

Table of Contents

viii

8.6. RF TRACKING INPUT ................................................................................................................................................................ 8-2

8.6.1. Narrow Band SCPC receiver: ............................................................................................................................ 8-2

8.7. TERMINAL MOUNTING STRIP................................................................................................................................................. 8-2

8.7.1. Synchro Interface:................................................................................................................................................. 8-2

8.7.2. SBS Interface............................................................................................................................................................ 8-2

8.7.3. Control Interface ................................................................................................................................................... 8-2

8.7.4. NMEA Interface...................................................................................................................................................... 8-3

8.8. ENVIRONMENTAL CONDITIONS............................................................................................................................................. 8-3

8.9. CABLES......................................................................................................................................................................................... 8-4

8.9.1. DAC AC Power Cable............................................................................................................................................ 8-4

8.9.2. Antenna Control Cable........................................................................................................................................ 8-4

8.9.3. SBS/Synchro Gyro Compass Interface Cable (Customer Furnished)......................................... 8-4

9. DRAWINGS ..................................................................................................................................................................................9-1

9.1. DAC-03 W/SCPC ANTENNA CONTROL UNIT -PART NUMBER QUICK REFERENCE................................................ 9-1

9.2. DAC-03 TRACKING ANTENNA CONTROLLER DRAWINGS............................................................................................... 9-1

DAC-03 Tracking Antenna Controller Introduction

1-1

1. Introduction

This manual describes the Sea Tel Model DAC-03 shipboard Tracking Antenna Control Unit (ACU). System

information, installation, setup, operating instructions, functional testing and maintenance for the ACU are also

contained herein.

This ACU allows you to control the antenna that it is connected to. It also allows you to connect your Gyro

Compass to provide heading input to the system for accurate targeting of satellites.

1.1. Characteristics

The Antenna Control Unit (ACU) communicates via an RS422 serial data link with the Pedestal Control Unit

(PCU) located on the antenna. For unlimited azimuth pedestals, the RS422 link is coupled to the PCU via RF

Multiplexers and is conducted across one of the ADE/BDE coaxial cables. The Pedestal Control Unit

stabilizes the antenna against the ship's roll, pitch, and turning motions. The ACU is the operator interface

to the PCU and provides the user with a choice of positioning commands to point the antenna, search

commands to find the satellite signal and tracking functions to maintain optimum pointing.

1.2. DAC-03 Functional Description

The DAC-03 is housed in a standard 19-inch rack mount enclosure. The front panel contains a row of

function keys used to select the desired information to be displayed and an array of numeric data entry keys

for changing parameters or commanding the antenna functions. Data is displayed on a bright 40 character

Vacuum Fluorescent display making it easy to read in all ambient light conditions. The DAC-03 can be

mounted on chassis slides allowing easy access to all internal electronics. All external connections are

brought out through three D-Subminiature connectors mounted on the rear panel. Flexible ribbon cable

extends these connections to a terminal-mounting strip mounted on the rear of the rack enclosure

separating the ship wiring from the Antenna Control Unit.

The DAC-03 uses a shipboard gyrocompass as the long-term azimuth reference. It accepts gyro compass

input from Step-By-Step OR 1:1, 36:1, 90:1 or 360:1 Synchro OR NMEA serial interface.

The DAC-03 automatically calculates the Elevation, Azimuth and Polarization pointing angles based on the

ships Latitude, Longitude and the desired Satellite Longitude position. A programmable pattern search will

automatically scan the area for a desired satellite if no signal is found. These two features make locating a

new satellite very easy.

A serial communications Monitor and Control (M&C) interface allows external control of the DAC-03 from a

PC, ASCII terminal, or telephone modem. This interface can also be used to update the ships Latitude and

Longitude information from a GPS or update heading from a gyro using the NMEA interface standard.

The DAC-03 requires satellite signal input to its internal Satellite ID Tracking Receiver to keep the antenna

peaked on satellite. This internal receiver is a DVB compliant DSS compatible Satellite Identification

receiver. Its input allows full coverage wide L-Band (950 to 2150 MHz) for tracking video transponders in all

TVRO satellites and may be set to Single Channel Per Carrier (SCPC), or Narrow Band IF (NBIF) mode to

allow tracking an L-BAND satellite beacon or narrow band data carrier.

1.3. Keyboard Entry

The keyboard entry and operation is very simple and straightforward. Pressing any of the 4 function keys

located below the VF display, enables the display of all the information associated with that function.

Please refer to the Operation section of this manual for more information.

1.4. Status LEDS

There are 4 status indicator LEDs on the front panel. They give the operator a continuous display of the

major operating states of the Antenna Control Unit. Please refer to the Operation section of this manual for

the function of each LED.

Introduction DAC-03 Tracking Antenna Controller

1-2

1.5. General Description of system

The ACU has been designed and manufactured so as to be inherently reliable, easy to maintain, and simple

to operate. Except for start-ups, or when changing to operate with different transponders or satellites, the

equipment essentially permits unattended operation.

This Antenna Control Unit will be connected to an Antenna and other equipment to form a system. The

system consists of two major groups of equipment; an above-decks group and a below-decks group. Each

group is comprised of, but not limited to, the items listed below. All equipment comprising the Above Decks

is incorporated inside the radome assembly and is integrated into a single operational entity. For inputs, this

system requires only an unobstructed line-of-sight view to the satellite, Gyro Compass input and AC

electrical power.

The following text provides a basic functional overview of the system components and component

interconnection as referred to in the System Block Diagram(s) for your model antenna.

Television Receive Only (TVRO) Systems are comprised of two major sections: The Above-Decks

Equipment (ADE) is comprised of the Sea Tel antenna & radome assembly which is mounted outside, on an

upper deck location chosen for best satellite reception. The Below-Decks Equipment (BDE) includes the

Antenna Control Unit and will have satellite receiver(s), TV set(s) and all other ancillary equipment that is

mounted in various locations throughout the interior of the ship.

Transmit/Receive (TXRX) Systems are also comprised of two major sections: The Above-Decks

Equipment (ADE) is comprised of the Sea Tel antenna & radome assembly which is mounted outside, on an

upper deck location chosen for best satellite reception. The Antenna inside the radome has Transmit &

Receive RF equipment mounted on it. The Below-Decks Equipment (BDE) includes the Antenna Control

Unit and will have satellite modem, Multiplexer and all other ancillary communications equipment that is

mounted in various locations throughout the interior of the ship.

For more information refer to the Basic System Information section of this manual, to your Antenna manual

and to the other manuals for equipment which was included in your system.

1.6. General scope of this manual

This manual describes this Sea Tel Antenna Control Unit, its’ operation and installation. Refer to the

manual(s) provided with your Antenna Pedestal and any other Below Decks Equipment for installation and

operating instructions for those equipments.

1.7. Quick Overview of contents

The information in this manual is organized into chapters. Operation, basic system information, installation,

setup, functional testing, maintenance, specifications and drawings relating to this ACU are all contained in

this manual

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