Sea Tel DAC-03 Installation And Operation Manual
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Sea Tel DAC-03 Installation And Operation Manual

Sea Tel DAC-03 Installation And Operation Manual

Tracking antenna controller
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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
October 29, 2008
INSTALLATION AND OPERATION MANUAL
DAC-03 TRACKING ANTENNA CONTROLLER
(with 70 or 140 MHz SCPC Narrow Band Receiver)
FOR UNLIMITED ANTENNA SYSTEMS
Sea Tel Inc doing business as Cobham SATCOM
FOR SEA TEL MODEL
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:
Document. No. 123866 Revision C2
www.cobham.com\seatel

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  • Page 1 Southampton, UK S0 18 2HJ Fax: (925) 798-7986 Tel: 44 (0)23 80 671155 Email: seatel@cobham.com Fax: 44 (0)23 80 671166 Web: www.cobham.com\seatel 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...
  • Page 2 All Rights Reserved. The information contained in this document is proprietary to Sea Tel, Inc.. This 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.
  • Page 3 DAC-03 Tracking Antenna Controller Introduction Revision History ECO# Date Description December 17, 2004 Initial Production Release September 29, 2005 Updated text & drawings. Added FCC TX Mute compliance installation and testing information April 17 2006 October 29, 2008 Update logo and font...

  • Page 5: Table Of Contents

    Table of Contents 1. INTRODUCTION ..................................1-1 1.1. C ..................................1-1 HARACTERISTICS 1.2. DAC-03 F ..........................1-1 UNCTIONAL ESCRIPTION 1.3. K ..................................1-1 EYBOARD NTRY 1.4. S LEDS ....................................1-1 TATUS 1.5. G ............................1-2 ENERAL ESCRIPTION OF SYSTEM 1.6. G ............................1-2 ENERAL SCOPE OF THIS MANUAL 1.7.
  • Page 6 Table of Contents 3.2.6. Tracking..................................3-4 3.3. C ......................3-4 OMPONENTS OF THE YSTEM ONFIGURATION 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.
  • Page 7 PTIMIZING ARGETING 7.5. P ........................7-4 EDESTAL ONTROL ONFIGURATION 7.6. P ...................7-4 ROGRAMMING NSTRUCTIONS NTENNA ONTROL 8. DAC-03 W/SCPC RECEIVER TECHNICAL SPECIFICATIONS..............8-1 8.1. G ......................................8-1 ENERAL 8.2. F ....................................8-1 RONT ANEL 8.3. R ....................................8-1 ANEL 8.4. RS-232 M ........................8-1 ONITOR AND...
  • Page 8 ABLES 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 A ..........9-1 NTENNA ONTROL UMBER UICK EFERENCE 9.2. DAC-03 T ....................9-1...

  • Page 9: Introduction

    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.

  • Page 10: General Description Of System

    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.

  • Page 11: Operation

    When power is turned ON, the ACU Display will initially show “SEA TEL INC - MASTER” and the ACU software version (ie DAC-03 VER 4.13 ). 10 seconds later, the display will switch to “SEA TEL INC - REMOTE” and “INITIALIZING”, until the Pedestal Control Unit (PCU) completes initialization of the antenna pedestal.

  • Page 12: Front Panel Layout

    Operation DAC-03 Tracking Antenna Controller 2.2. Front Panel Layout 2.3. Basic Keyboard Entry Keyboard operation is very simple and straightforward. Pressing any of the 4 main menu function keys located below the display, enables the display of all the information associated with that function. Pressing the same function key again, or pressing the ENTER key, enables the first display/entry sub-menu.
  • Page 13 DAC-03 Tracking Antenna Controller Operation Special Keys - UP Arrow - Steps the selected entry UP one increment per sequential key-press or rapidly increments the selected entry when pressed & held. Affects all Numeric entries and is used to toggle Tracking ON/OFF, turn Searching ON or to clear the Error display.

  • Page 14: Display & Entry Operation Menu

    Operation DAC-03 Tracking Antenna Controller 2.5. Display & Entry Operation Menu The operation menus are arranged in four groups. Use the SHIP, SAT, ANTENNA and MODE keys to select their respective operation menu. Use the ENTER key to access the sub-menu of a selected group and then use the NSEW and ENTER keys to move up and down the sub-menu items.

  • Page 15: Sat Information Menus

    DAC-03 Tracking Antenna Controller Operation Heading entry mode. Used to provide “True” HDG 000.0 000.0 Azimuth antenna position. If the GYRO TYPE parameter is NMEA0183 data or 1:1 Synchro, you will not be able to set HDG to any other value than it receives from the Ships Gyro Compass.

  • Page 16: Antenna Information Menus

    Operation DAC-03 Tracking Antenna Controller RCVR entry mode. Tracking Receiver Input 70.450 AGC 1234 Selection & Tuning. Press N/S/E/W to toggle Input Selection (EXT, INA, INB or IF). IF should be selected for TXRX systems using one of the SCPC Receivers (BNC connector on the rear panel).
  • Page 17 DAC-03 Tracking Antenna Controller Operation AZ 123.4 Azimuth position/entry mode. True AGC 1234 Azimuth position of the antenna. Display is the sum of ships heading (HDG) and antenna relative (REL) position reduced to 0-359.9 degrees. To manually drive the antenna in...
  • Page 18 Operation DAC-03 Tracking Antenna Controller Polarization entry menu. Allows polarization POL 0000 AGC 1234 adjustment if Auto-Polarization (DEFAULT) is not being used. POL Display may be a numeric value representing the current polarization angle (polang) position or ALPHA display of HORZ, LHCP, VERT, RHCP polarization mode.

  • Page 19: Mode Control & Status Menus

    DAC-03 Tracking Antenna Controller Operation 2.5.4. MODE Control & Status menus. Main Menu Sub Menu Display Meaning CONTROL Control – Tracking menu. TRACKING KuHI Use the AUX1 or UP arrow key to turn Tracking ON/OFF. Use the DOWN arrow key (two times within 3 seconds) to toggle the BAND selection (Ku or C/X).

  • Page 20: Setup Parameter Display And Entry Menus

    Operation DAC-03 Tracking Antenna Controller STATUS Status – Error menu. ERROR LLLL RRRR LLLL - Comms Error Count - indicates the number of times that a Pedestal M&C communication message (between the ACU and PCU) was not received correctly. Occasional...

  • Page 21: Internal Tracking Receiver Settings

    DAC-03 Tracking Antenna Controller Operation If the antenna is already perfectly pointed, the signal received (AGC) throughout each full circle will be equal. If the dish is slightly mispointed, a portion of the circle movement will have higher signal level than the rest of the circle. DishScan will then issue a step in Azimuth, and/or Elevation, to move the antenna in the direction of the stronger signal.

  • Page 22: Inclined Orbit Search Pattern

    Operation DAC-03 Tracking Antenna Controller SEARCH DELAY – default, or any number of seconds from 1-255 that you would prefer that the ACU wait before starting an automatic search. SWEEP INC – default value (this parameter is not used in this search pattern).

  • Page 23: No Gyro Search Pattern

    DAC-03 Tracking Antenna Controller Operation SEARCH DELAY – default, or any number of seconds from 1-255 that you would prefer that the ACU wait before starting an automatic search. SWEEP INC – set to 192 if your antenna is a Series 04 or Series 06. Set to 193 if your antenna is a Series 97, Series 00 or Series 07.

  • Page 24: Auto-Polarization Operation

    Operation DAC-03 Tracking Antenna Controller search down 450 degrees in azimuth, search down two Search Increments in elevation, etc until Search Limit is reached. When the end of the search pattern is reached, the ACU will retarget the antenna back to the start point shown in the graphic below.

  • Page 25: Basic System Information

    DAC-03 Tracking Antenna Controller Basic System Information Basic System Information This section provides you with some additional information about the satellites you will be using, some basics of your satellite antenna system and other equipment within your system configuration. For more information about you specific antenna, refer to its manual.

  • Page 26: Signal Level

    Basic System Information DAC-03 Tracking Antenna Controller four inches per hour will cause complete loss of signal. In weaker signal areas the effects would be more pronounced. 3.1.5. Signal level The level of the receive signal is dependant upon how powerful the transmission is and how wide the signal beam coverage area is.

  • Page 27: Antenna Basics

    DAC-03 Tracking Antenna Controller Basic System Information 3.2. Antenna Basics The following information is provided to explain some of the basic functions of the antenna: 3.2.1. Azimuth The CW / CCW rotation of the antenna is known as Azimuth. Azimuth drive, provided by the azimuth motor, is required during stabilization, searching, tracking, and unwrap operations of the antenna.

  • Page 28: Stabilization

    DAC-03 Tracking Antenna Controller 3.2.4. Stabilization The Sea Tel antennas are stabilized in all three axes of motion. Stabilization is the process of de- coupling the ships’ motion from the antenna. Simply put, this allows the antenna to remain pointed at the satellite while the boat turns, rolls or pitches under it.

  • Page 29: Below Decks Ac Power Supply

    DAC-03 Tracking Antenna Controller Basic System Information The Antenna Control Unit is connected to the Antenna Pedestal (ADE), the GPS antenna and the ships Gyro Compass. Figure 3-3 Antenna Control Unit 3.3.3. Below Decks AC Power Supply AC Voltage - An appropriate source of AC Voltage (110 VAC 60 Hz OR 220 VAC 50 Hz) will also be required for all of the below decks equipment.
  • Page 30 Basic System Information DAC-03 Tracking Antenna Controller This Page Intentionally Left Blank...

  • Page 31: Installation

    Read this complete section before starting. The following instructions describe the installation procedures for installing the DAC-03 Antenna Control Unit. The installation of the Antenna Pedestal (ADE) is outlined in its Installation and Operation manual and may already have been performed.

  • Page 32: Install The Acu

    Installation DAC-03 Tracking Antenna Controller 4.4. Install the ACU Install the ACU in the front of the standard 19” equipment rack or other suitable location. 4.5. Install the Terminal Mounting Strip (TMS) Install the TMS in the rear of the standard 19” equipment rack or other suitable location.
  • Page 33 TB-4 NMEA 9-pin PCB. • TX+ and TX- screw terminals are used to provide GPS NMEA GPGGA output to a Satellite Modem used with Sea Tel Transmit/Receive (TX/RX) antennas. • RX+ and RX- screw terminals are commonly used to connect GPS (Latitude and Longitude) or Gyro Compass (Heading) NMEA inputs to the ACU J-13 communications port.

  • Page 34: Pedestal Control Connection

    When all equipment has been installed, turn ACU power ON. Turn Antenna Pedestal power ON. The antenna will begin Initializing. The ACU will initially display “SEA TEL – MASTER and DAC-03 VER 3.xx”. About 10 seconds later the display will change to “SEA TEL – REMOTE and INITIALIZING”. After...

  • Page 35: Setup

    DAC-03 Tracking Antenna Controller Installation initialization, the bottom line of the remote display will display the antenna model number and the software version of the PCU (ie 9497A VER 1.xx). Energize and check the other Below Decks Equipment to verify that all the equipment is operating. You will need to assure that the ACU is setup correctly and that the antenna acquires the correct satellite before you will be able to completely check all the satellite receivers for proper operation.
  • Page 36 Installation DAC-03 Tracking Antenna Controller This Page Intentionally Left Blank...

  • Page 37: Setup

    DAC-03 Tracking Antenna Controller Setup Setup Below are basic steps to guide you in setting up the ACU. Assure that the Antenna Pedestal (ADE) has been properly installed. 5.1. Operator Settings Refer to the Operation chapter of this manual to set the Ship and Satellite information.

  • Page 38: Auto Thres

    20 counts/dB. Default setting is 50-100. A setting of 0000 disables auto threshold. When AUTO THRESHOLD is enabled, the DAC-03 automatically re-sets the AGC tracking threshold whenever the antenna Targets (AZ, EL or SAT), Searches or Unwraps. The new AGC threshold is set to the average signal level input (approximate background noise level) plus the AUTO THRES offset value.

  • Page 39: Search Delay

    DAC-03 Tracking Antenna Controller Setup pattern to avoid searching out far enough to be attracted by and tracking onto a nearby (adjacent) satellite. If you wish to change this parameter, key in the desired value and press ENTER. 5.3.9. SEARCH DELAY Sets the time-out for automatic initiation of a search operation when the signal level (AGC) drops below threshold.

  • Page 40: Polang Type

    Setup DAC-03 Tracking Antenna Controller If Gyro Type will be set to 0000, you must set SWEEP INC correctly and SATELLITE REFERENCE MODE MUST also be turned ON. 5.3.13. POLANG TYPE This automatically adjusts the polarization of the feed by calculating the required polarization angle for the feed every 2 seconds based on ship's Latitude, Longitude and the Satellite Longitude.
  • Page 41 RF Radiation Hazard zone(s). When used for “FCC TX Mute” logic output for a single Sea Tel TXRX antenna, this output is used to suppress RF transmissions whenever the antenna is mis-pointed 0.5 degrees or more, is blocked, searching, targeting or unwrapping.
  • Page 42 ZONE and then AZ LIMIT 5 & 6 if a third ZONE is needed. All unneeded zone AZ LIMIT pairs must be set to 0000. EXAMPLE 1 - Three blockage Zones: A ship has a Sea Tel antenna mounted on the port side and an Inmarsat antenna mounted on the starboard side. A mast forward, the...

  • Page 43: Tx Polarity

    LIMIT 6 value of 3480. EXAMPLE 3 - One blockage Zone: A ship has a Sea Tel antenna mounted on the center line of the ship. A mast is forward and an engine exhaust stack is aft. In this example the Stack does NOT block the satellite, only the mast forward does.

  • Page 44: Save New Parameters

    Use to monitor the results of a diagnostic command which was sent to the PCU. Allows monitoring any status request from the PCU in the DAC-03 Monitor window. Select the REMOTE COMMAND window and key in ".nnn ENTER" where nnn is the ASCII value of the desired status request character.

  • Page 45: Functional Testing

    ACU / Antenna System Check 1. Press RESET on the ACU front panel to initialize the system. Verify the display shows "SEA TEL INC - MASTER" and the ACU software version number. Wait 10 seconds for the display to change to "SEA TEL INC - REMOTE"...

  • Page 46: Azimuth & Elevation Drive

    0.5 Amp. This logic output control signal is used for: • When used as simple “BLOCKED” logic output for a single Sea Tel antenna, this output could be used to light a remote LED and/or sound a buzzer to alert someone that the antenna is blocked, and...
  • Page 47 RF Radiation Hazard zone(s). • When used for “FCC TX Mute” logic output for a single Sea Tel TXRX antenna, this output could be used to suppress RF transmissions whenever the antenna is mis-pointed 0.5 degrees or more, is blocked, searching, targeting or unwrapping.

  • Page 48: Check Acu Parameters

    Functional Testing DAC-03 Tracking Antenna Controller 6.8. Check ACU Parameters (your software may not have all of these settings) Assure that the parameters are set correctly (you may wish to record them). Refer to the Antenna manual for factory default parameters.
  • Page 49 DAC-03 Tracking Antenna Controller Functional Testing This Page Intentionally Left Blank...

  • Page 51: Maintenance & Troubleshooting

    OFF when handling and connecting wiring to the Terminal Mounting Strip or the boards inside the ACU. CAUTION - Allow only an authorized dealer to install or service your Sea Tel System components. Unauthorized installation or service can be dangerous and can invalidate the warranty. 7.2.

  • Page 52: Nmea Gps Checkout

    Maintenance & Troubleshooting DAC-03 Tracking Antenna Controller If the Base Multiplexer is transmitting, but the Pedestal Multiplexer 1.1 MHz is not present, replace the Pedestal Multiplexer. If the Pedestal Multiplexer transmit is still not present, replace the PCU. 7.2.3. NMEA GPS Checkout When a NMEA GPS receiver is connected to J13 or J11, the NMEA LED on the AUX SERIAL PORT ADAPTOR (ASPA) PCB will illuminate each time a NMEA message is received.

  • Page 53: 360:1 Synchro

    DAC-03 Tracking Antenna Controller Maintenance & Troubleshooting correct heading go to step 3. The gyro compass connects to the Terminal Mounting Strip on TB3 R1, R2, S1, S2 and S3. 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.

  • Page 54: Display Offsets / Optimizing Targeting

    Pedestal Control Unit Configuration If the power up display of the ACU says SEA TEL – REMOTE “xx97 VER 1.xx” the PCU is not configured for a specific Series 96, 97 or 00 MODEL number. The configuration information that is unique to each pedestal type is stored in a Non Volatile Random Access Memory (NVRAM) in the PCU enclosure.
  • Page 55 DAC-03 Tracking Antenna Controller Maintenance & Troubleshooting Programming Operation: ACU Software Upload 4. Power on ACU 5. From the CommPort menu, Select the correct programming mode. (I.e. for a DAC2200/2202/2302, Click the ‘DAC2200 to ACU’) to set the ProgTerm program parameters for updating the below decks Antenna Control Unit (ACU).
  • Page 56 If the ACU does not respond to a status request (Paper Clip button) the module may have been erased by a previous action. It can still be programmed but you need to contact the Sea Tel service department for instructions. 11. Press ‘START’ to put the selected module into programming mode.
  • Page 57 DAC-03 Tracking Antenna Controller Maintenance & Troubleshooting For each line of hex data that is programmed during the ACU software upload procedure ProgTerm will display one of the following characters: “ ” (successful programming), “ “ (failed programming), “ ” (protected memory access) If you see any “_”...
  • Page 58 Maintenance & Troubleshooting DAC-03 Tracking Antenna Controller This Page Intentionally Left Blank...

  • Page 59: Dac-03 W/Scpc Receiver Technical Specifications

    DAC-03 Tracking Antenna ControllerDAC-03 w/SCPC Receiver Technical Specifications DAC-03 w/SCPC Receiver Technical Specifications The technical specifications for the DAC-03 Antenna Control Unit are: 8.1. General Physical Dimensions: 3.5 x 19" x 14" Mounting: 2 Unit high Rackmount Input Voltage: 110/220 VAC, 50/60 Hz (Voltage Select/Fuse Block)

  • Page 60: Control

    DAC-03 w/SCPC Receiver Technical SpecificationsDAC-03 Tracking Antenna Controller 8.5. NMEA Interface Communications Parameters: 4800 Baud, 8, N, 1 Interface Protocol Optically isolated RS-422 Interface Connector DE9P (J11 or J13) NMEA GPS Input Sentence: xxGLL, Typically GPGLL or LCGLL NMEA Heading Input Sentence: xxHDx, Typically HCHDM or HCHDT 8.6.

  • Page 61: Nmea Interface

    DAC-03 Tracking Antenna ControllerDAC-03 w/SCPC Receiver Technical Specifications 8.7.3.2. SW1 Local Band Select Output Control local (BDE) band select switch(s) or tone generator(s). Connections 1 screw terminal connection (SW1) Control Level: Low Band = OPEN circuit High Band = SHORT to ground Controlled by MODE –...

  • Page 62: Cables

    DAC-03 w/SCPC Receiver Technical SpecificationsDAC-03 Tracking Antenna Controller 8.9. Cables 8.9.1. DAC AC Power Cable Voltage: 110 or 220 volts AC, 50/60 Hz. 100 Watts MAX for the Antenna Control Unit only Power: 8.9.2. Antenna Control Cable RS-422 Pedestal Interface cable...

  • Page 63: Drawings

    Drawings Drawings The drawings listed below are provided as a part of this manual for use as a diagnostic reference. 9.1. DAC-03 W/SCPC Antenna Control Unit - Part Number Quick Reference Part Description Part Number ACU Main PCB ASS'Y 113275...
  • Page 64 Drawings DAC-03 Tracking Antenna Controller This Page Intentionally Left Blank...
  • Page 65 MICRO ASS'Y, 12-BIT SDC REF. ITEM 43 120090-18 MICRO ASS'Y, NMEAH SERIAL REF. ITEM 72 124437 4.62 SOFTWARE, DAC-03 ACU W/DVB, GP32 REF 119828 112412 PAN MACHINING, CHASSIS, ACU 115709 LETTERING, REAR PANEL, MULTI SERIAL 108675-1 LID MACHINING, ACU, STEEL, GOLD...
  • Page 66 PCB ASS'Y, AUX SERIAL PORT 119601 CAUTION LABEL, MICROWAVE HAZARD, ( 108429-3 LABEL, TERMINAL BLOCK, 1-6 110959-1 DECAL, SMALL, MODEL & P/N DAC-03 ASS'Y, W/SCPC RECEIVER, 70MHZ PROD FAMILY EFF. DATE DRAWING NUMBER SHT 2 OF 2 ELEC 19-Apr-06 123138-83313...
  • Page 73 SINGLE LEVEL MFG BILL OF MATERIAL FIND PART NO DESCRIPTION REFERENCE DESIGNATOR 112657 MACHINING, TERMINAL MOUNTING STRIP 116529 PCB ASS'Y, TERMINAL MOUNTING, 25 PIN 112936 CABLE ASS'Y, D-SUB, 25 PIN 116527 PCB ASS'Y, TERMINAL MOUNTING, 9 PIN 116669-36 CABLE ASS'Y, D-SUB, 9-PIN, 36 IN. 121228-3072 STANDOFF, HEX, F/F, 6-32 X .25 OD X .50, 114588-146...
  • Page 75 INTERFACE CABLE ASS'Y, ACU TO MUX, -1, -4 116298...
  • Page 76 INTERFACE CABLE ASS'Y, ACU TO MUX, -2, -6, -7 116298...
  • Page 77 INTERFACE CABLE ASS'Y, ACU TO MUX, -3 116298...
  • Page 78 INTERFACE CABLE ASS'Y, ACU TO MUX, -5, -8 116298...
  • Page 80 RS-232 CABLE ASSEMBLY 116670...

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