Sea Tel DAC-2202 Manuel utilisateur

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

August 26, 2010 Document. No. 126523 Revision G2

INSTALLATION AND OPERATION MANUAL

FOR SEA TEL MODEL

DAC-2202 ANTENNA CONTROL UNIT

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.

R&TTE

The Sea Tel DAC-2202, or DAC-2302, Antenna Control Unit used with the Sea Tel Antenna

complies with the requirements for Radio and Telecommunication Terminal Equipment. A

copy of the R&TTE Declaration of Conformity for this equipment is contained in the Antenna

Manual for your system.

The Sea Tel DAC-2202, or DAC-2302, Antenna Control Unit contains FCC compliant supervisory software to

continuously monitor the pedestal pointing accuracy and use it to control the “Transmit Mute” function of the

satellite modem to satisfy the provisions of FCC 47 C.F.R. § 25.222(a)(l)(iii). A copy of the FCC Declaration of

Conformity for this equipment is contained in the Antenna Manual for your system.

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.

Revision History

REV ECO# Date Description By

A N/A May 23, 2007 Production release ECM

A1 N/A May 30, 2007 Updated Installation Text MDN

A2 N/A June 7, 2007 Updated Setup Text MDN

B N/A July 5, 2007 Updated Text per engineering dept. feedback ECM

C N/A October 3, 2007 Updated text and added text as required ECM

D N/A December 12, 2007 Updated text to include SCPC functionality and internal HTML page ECM

E N/A April 18, 2008 Updated text to include new search, new blockage mapping including

EL Limits and added SCPC receivers

MDN

E1 N/A October 28, 2008 Updated logo and font MDN

E2 N/A September 25, 2009 Updated Text to remove SCPC reference ECM

F 6967 November 16, 2009 Updated text and graphics as required per ECO 6967(GSR2) ECM

F1 N/A December 3,2009 Corrected footers ECM

G N/A June 29, 2010 Updated to include GSR3 software information MDN

G1 N/A July 29, 2010 Updated Sat Ref mode and Search Text ECM

G2 N/A August 26, 2010 Updated MDE software update instructions ECM

DAC-2202 Antenna Control Unit Table of Contents

iii

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

1.1.GENERAL DESCRIPTION OF SYSTEM........................................................................................................................................................... 1-1

1.2.GENERAL SCOPE OF THIS MANUAL............................................................................................................................................................ 1-1

1.3.QUICK OVERVIEW OF CONTENTS............................................................................................................................................................... 1-1

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

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

2.2.FRONT PANEL LAYOUT.................................................................................................................................................................................. 2-1

2.3.BASIC FUNCTION OF FRONT PANEL KEYS................................................................................................................................................. 2-2

2.4.BASIC DESCRIPTION OF FRONT PANEL STATUS LEDS........................................................................................................................... 2-2

2.5.DISPLAY &ENTRY OPERATION MENUS..................................................................................................................................................... 2-3

2.6.OVERVIEW -OPERATION FLOWCHART.................................................................................................................................................... 2-3

2.6.1.Ship Information Menus........................................................................................................................................................2-5

2.6.2.Satellite Information Menus................................................................................................................................................2-6

2.6.3.Antenna Information Menus...............................................................................................................................................2-9

2.6.4.Status information menus..................................................................................................................................................2-10

2.6.5.SETUP Parameter display and entry menus.............................................................................................................2-12

2.7.TRACKING OPERATION ...............................................................................................................................................................................2-12

2.7.1.DishScan Operation...............................................................................................................................................................2-12

2.1.SEARCHING OPERATION .............................................................................................................................................................................2-13

2.1.1.Default Standard (Box) Search Pattern.......................................................................................................................2-13

2.1.2.Inclined Orbit Search Pattern..........................................................................................................................................2-14

2.1.3.No Gyro Search Pattern ......................................................................................................................................................2-15

2.2.AUTO-POLARIZATION OPERATION...........................................................................................................................................................2-16

2.3.RADOME ASSEMBLY OPERATION ..............................................................................................................................................................2-16

3.BASIC CONFIGURATION INFORMATION................................................................................................................................. 3-1

3.1.OPEN ANTENNA-MODEM INTERFACE PROTOCOL (OPENAMIP™) SPECIFICATION:........................................................................ 3-1

3.1.1.Overview: ........................................................................................................................................................................................3-1

3.1.2.Interface requirements:.........................................................................................................................................................3-1

3.1.3.Utilized OpenAMIP Commands:........................................................................................................................................3-1

3.2.COMPONENTS OF THE SYSTEM CONFIGURATION ................................................................................................................................... 3-2

3.2.1.Positive Satellite ID ..................................................................................................................................................................3-2

3.2.2.Below Decks AC Power Supply ...........................................................................................................................................3-2

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......................................................................................................................................................................................... 4-1

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

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

4.7.TERMINAL MOUNTING STRIP CONNECTIONS AND JUMPER SETTINGS............................................................................................... 4-2

4.7.1.Terminal Mounting Strip (TMS) Connections.............................................................................................................4-2

4.8.AC POWER TO THE ACU ............................................................................................................................................................................ 4-4

4.9.AGC TRACKING CONNECTION ................................................................................................................................................................... 4-4

Table of Contents DAC-2202 Antenna Control Unit

4.10.MONITOR AND CONTROL CONNECTIONS................................................................................................................................................. 4-5

4.11.INSTALL OTHER BDE EQUIPMENT..............................................................................................................................................................4-5

4.12.FINAL CHECKS.................................................................................................................................................................................................4-5

4.12.1.Visual/Electrical inspection.................................................................................................................................................. 4-5

4.13.POWER-UP......................................................................................................................................................................................................4-5

4.14.SETUP ...............................................................................................................................................................................................................4-5

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

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

5.2.DEFAULT SETUP PARAMETERS FOR YOUR ANTENNA..............................................................................................................................5-1

5.3.SETUP PARAMETER DISPLAY AND ENTRY MENUS................................................................................................................................... 5-1

5.4.OVERVIEW -SETUP FLOWCHART..............................................................................................................................................................5-1

5.5.AUTO TRIM .................................................................................................................................................................................................5-3

5.6.MANUALLY OPTIMIZING TARGETING ........................................................................................................................................................5-3

5.7.EL TRIM..........................................................................................................................................................................................................5-3

5.8.AZ TRIM ........................................................................................................................................................................................................5-4

5.9.AUTO THRES............................................................................................................................................................................................... 5-4

5.10.EL STEP SIZE................................................................................................................................................................................................5-4

5.11.AZ STEP SIZE............................................................................................................................................................................................... 5-4

5.12.STEP INTEGRAL .........................................................................................................................................................................................5-5

5.13.SEARCH INC ................................................................................................................................................................................................5-5

5.14.SEARCH LIMIT............................................................................................................................................................................................5-5

5.15.SWEEP INC...................................................................................................................................................................................................5-5

5.16.SYSTEM TYPE PARAMETER ....................................................................................................................................................................... 5-5

5.17.GYRO TYPE...................................................................................................................................................................................................5-7

5.18.POLANG TYPE .............................................................................................................................................................................................5-7

5.19.POL OFFSET .................................................................................................................................................................................................5-7

5.20.POL SCALE ....................................................................................................................................................................................................5-7

5.21.RADIATION HAZARD AND BLOCKAGE MAPPING (AZ LIMIT PARAMETERS) ..................................................................................... 5-7

5.22.5V OFFSET (MAY NOT BE IN YOUR SOFTWARE)................................................................................................................................. 5-11

5.23.5V SCALE (MAY NOT BE IN YOUR SOFTWARE).................................................................................................................................... 5-12

5.24.TX POLARITY................................................................................................................................................................................................ 5-12

5.25.TRACK DISP.............................................................................................................................................................................................. 5-12

5.26.SAVE NEW PARAMETERS................................................................................................................................................................... 5-12

5.27.REMOTE COMMAND............................................................................................................................................................................ 5-12

5.28.REMOTE MONITOR............................................................................................................................................................................... 5-13

5.29.TO DISABLE/ENABLE DISHSCAN.............................................................................................................................................................. 5-13

5.30.SATELLITE REFERENCE MODE ................................................................................................................................................................... 5-13

5.31.REMOTE TILT........................................................................................................................................................................................... 5-13

5.32.REMOTE BALANCE:...................................................................................................................................................................................... 5-14

5.33.REMOTE PARAMETERS ....................................................................................................................................................................... 5-14

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.AZIMUTH &ELEVATION DRIVE...................................................................................................................................................................6-1

6.5.FOUR QUADRANT TRACKING TEST.............................................................................................................................................................6-1

6.6.BLOCKAGE SIMULATION TEST.....................................................................................................................................................................6-2

6.7.CHECK ACU PARAMETERS........................................................................................................................................................................... 6-3

DAC-2202 Antenna Control Unit Table of Contents

7.DIAGNOSTIC M&C SOFTWARE INSTALLATION & USE................................................................................................... 7-1

7.1.PROGTERM DIAGNOSTIC M&C SOFTWARE............................................................................................................................................. 7-1

7.2.PROGTERM SOFTWARE INSTALLATION. .................................................................................................................................................... 7-1

7.3.PROGTERM ELECTRICAL HOOKUP:TCP/IP BASED ................................................................................................................................. 7-2

7.3.1.PC/Laptop Direct to ACU.......................................................................................................................................................7-2

7.3.2.PC/Laptop LAN to ACU ...........................................................................................................................................................7-2

7.4.PROGTERM ELECTRICAL HOOKUP:SERIAL BASED ................................................................................................................................... 7-3

7.4.1.PC/Laptop Native 9 Pin Serial Port to ACU...................................................................................................................7-3

7.4.2.PC/Laptop USB Port to ACU.................................................................................................................................................7-3

7.5.PC (PROGTERM)TO ACU COMMUNICATION CONFIGURATION......................................................................................................... 7-4

7.5.1.TCP/IP Based ...............................................................................................................................................................................7-4

7.5.2.Serial Based...................................................................................................................................................................................7-4

7.6.PARAMETER DUMP USING PROGTERM ..................................................................................................................................................... 7-5

7.7.PARAMETER UPLOAD USING PROGTERM................................................................................................................................................7-10

7.8.TCP/IP PORT SECURITY.............................................................................................................................................................................7-11

7.9.UPDATING YOUR SYSTEM SOFTWARE:....................................................................................................................................................7-13

7.10.ACU DVB PCB SOFTWARE UPDATE INSTRUCTIONS .........................................................................................................................7-16

7.11.PCU SOFTWARE UPLOAD INSTRUCTIONS..............................................................................................................................................7-18

7.13.DACREMPM&C SOFTWARE.....................................................................................................................................................................7-23

7.14.DACREMPSOFTWARE INSTALLATION.....................................................................................................................................................7-23

7.15.1.PC/Laptop Direct to ACU....................................................................................................................................................7-25

7.15.2.PC/Laptop LAN to ACU ........................................................................................................................................................7-25

7.16.1.PC/Laptop Native 9 Pin Serial Port to ACU................................................................................................................7-25

7.16.2.PC/Laptop USB Port to ACU..............................................................................................................................................7-26

7.17.PC (DACREMP) TO ACU COMMUNICATION CONFIGURATION ........................................................................................................7-26

7.17.1.TCP/IP Based ............................................................................................................................................................................7-26

7.17.2.Serial Based................................................................................................................................................................................7-27

7.18.DACREMPFIND DAC’S...............................................................................................................................................................................7-28

7.19.PARAMETER DUMP USING DACREMP .....................................................................................................................................................7-28

7.20.PARAMETER UPLOAD USING DACREMP..................................................................................................................................................7-29

7.21.SHD COMMIF UPLOAD UTILITY SOFTWARE ........................................................................................................................................7-30

7.22.SHD UPDATE UTILITY INSTALLATION. ...................................................................................................................................................7-31

7.23.1.PC/Laptop Direct to ACU....................................................................................................................................................7-32

7.23.2.PC/Laptop LAN to ACU ........................................................................................................................................................7-32

7.24.COMMIF UPDATE PROCEDURE.................................................................................................................................................................7-33

7.25.REMOTE PANEL LOCKOUT ..........................................................................................................................................................................7-35

7.25.1.Panel Lock Out Procedure Using ProgTerm .............................................................................................................7-35

7.25.2.Panel Lock Out Procedure Using DacRemP..............................................................................................................7-35

7.25.3.To restore operation remotely (from the ProgTerm)..........................................................................................7-36

7.25.4.To restore operation remotely (from the DacRemP) ..........................................................................................7-36

7.25.5.To restore operation locally (from the front panel).............................................................................................7-36

8.MAINTENANCE & TROUBLESHOOTING......................................................................................................................................8-1

8.1.GENERAL CAUTIONS &WARNINGS ........................................................................................................................................................... 8-1

8.2.TROUBLESHOOTING THE ACU.................................................................................................................................................................... 8-1

8.2.1.ACU display is blank .................................................................................................................................................................8-1

8.2.2.ACU Status displays "REMOTE NOT RESPONDING" ...............................................................................................8-1

8.3.TROUBLESHOOTING SHIPS GYRO COMPASS PROBLEMS ......................................................................................................................... 8-1

8.3.1.STEP-BY-STEP ..............................................................................................................................................................................8-2

Table of Contents DAC-2202 Antenna Control Unit

8.3.2.1:1 SYNCHRO............................................................................................................................................................................... 8-2

8.3.3.360:1 Synchro............................................................................................................................................................................. 8-2

8.4.DISPLAY OFFSETS /OPTIMIZING TARGETING..........................................................................................................................................8-3

8.5.PEDESTAL CONTROL UNIT CONFIGURATION............................................................................................................................................8-3

8.6.CONFIGURING THE COMM IF PORTS OF THE DAC-2202 ACU ....................................................................................................... 8-3

8.7.INTERNAL HTML PAGE.................................................................................................................................................................................8-6

8.8.SYSTEM INFORMATION................................................................................................................................................................................. 8-7

8.9.COMMUNICATION PORT SETTINGS ...........................................................................................................................................................8-8

8.10.DAC PARAMETERS PAGE 1....................................................................................................................................................................... 8-10

8.11.DAC PARAMETERS PAGE 2....................................................................................................................................................................... 8-11

8.12.STATUS PAGE............................................................................................................................................................................................... 8-12

8.13.FAVORITE SATELLITES PAGE ..................................................................................................................................................................... 8-13

9.TECHNICAL SPECIFICATIONS.......................................................................................................................................................... 9-1

9.1.DAC-2202 ANTENNA CONTROL UNIT....................................................................................................................................................9-1

9.1.1.General............................................................................................................................................................................................ 9-1

9.1.2.Front Panel ................................................................................................................................................................................... 9-1

9.1.3.Rear Panel ..................................................................................................................................................................................... 9-1

9.1.4.J4A “Antenna” Pedestal M&C Interface........................................................................................................................ 9-1

9.1.5.J4B “Antenna” Pedestal M&C Interface ........................................................................................................................ 9-2

9.1.6.J3 “M&C” Aux Serial Interface............................................................................................................................................ 9-2

9.1.7.J2 “NMEA A” Interface ........................................................................................................................................................... 9-2

9.1.8.J2 “NMEA B” Interface............................................................................................................................................................ 9-2

9.1.9.Ethernet ......................................................................................................................................................................................... 9-2

9.1.10.DVB Compliant Tracking Receiver.................................................................................................................................... 9-3

9.1.11.L-Band SCPC Narrow Band Tracking Receiver........................................................................................................... 9-3

9.1.12.L-Band NBIF Narrow Band Tracking Receiver............................................................................................................ 9-3

9.1.13.Narrow Band SCPC receiver (DAC-2302 ONLY):....................................................................................................... 9-3

9.2.TERMINAL MOUNTING STRIP......................................................................................................................................................................9-4

9.2.1.Synchro Interface:.................................................................................................................................................................... 9-4

9.2.2.SBS Interface............................................................................................................................................................................... 9-4

9.2.3.Control Interface ...................................................................................................................................................................... 9-4

9.2.4.NMEA Interface......................................................................................................................................................................... 9-5

9.3.ENVIRONMENTAL CONDITIONS................................................................................................................................................................... 9-5

9.4.CABLES .............................................................................................................................................................................................................9-5

9.4.1.DAC-2200 AC Power Cable.................................................................................................................................................. 9-5

9.4.2.Antenna Control Cable........................................................................................................................................................... 9-5

9.4.3.IF Signal Cables ......................................................................................................................................................................... 9-5

9.4.4.SBS/Synchro Gyro Compass Interface Cable (Customer Furnished)............................................................ 9-5

9.4.5.Audio / Video cables ................................................................................................................................................................ 9-5

10.DRAWINGS................................................................................................................................................................................................... 10-1

10.1.DAC-2202 ANTENNA CONTROL UNIT DRAWINGS ........................................................................................................................... 10-1

DAC-2202 Antenna Control Unit Introduction

1-1

1. Introduction

This manual describes the Sea Tel Model DAC-2202 Series of shipboard Tracking Antenna Control Units (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. General Description of System

The Antenna Control Unit (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 ACU is housed in a standard 1 Unit high, 19-inch rack mount enclosure. The front panel contains function keys

used to select the desired information to be displayed, and/or changed. Data is displayed on a 2 line 20 character

display. All external connections are interfaced through connectors mounted on the rear panel.

The shipboard gyrocompass input is used as the long-term azimuth reference. The ACU accepts gyro compass input

from Step-By-Step OR 1:1, 36:1, 90:1 or 360:1 Synchro OR NMEA 0183 serial interface. A GPS antenna is provided

on your antenna pedestal to provide Latitude and Longitude location for the system.

The ACU 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.

The internal Satellite ID Tracking Receiver (DVB Receiver) uses received satellite signal input to keep the antenna

peaked on satellite. This internal digital receiver allows you to tune it to any frequency in the 950 to 2150 MHz range

for tracking a wide bandwidth satellite signal.

It is normally 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 operation, this system requires only an unobstructed line-of-sight view

to the satellite, GPS Latitude & Longitude input (provided with antenna pedestal), Ship’s 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. Refer to your antenna manual for more specific configuration information.

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.

Refer to your antenna manual for more specific configuration information.

1.2. General Scope of This Manual

This manual describes operation and installation of this Antenna Control Unit.

1.3. Quick Overview of Contents

The information in this manual is organized into chapters; Operation, Installation, Setup, Functional Testing,

Maintenance & Troubleshooting, Technical Specifications and Drawings.

Introduction DAC-2202 Antenna Control Unit

1-2

THIS PAGE INTENTIONALLY LEFT BLANK

DAC-2202 Antenna Control Unit Operation

2-1

2. Operation

When power is turned ON, the ACU Display will initially show “SEA TEL INC - MASTER” and the ACU software version (ie

DAC-2202 VER 6.xx ). 10 seconds later, the display will switch to “SEA TEL INC - REMOTE” and “INITIALIZING” for

approximately two minutes while the Pedestal Control Unit (PCU) completes initialization of the antenna pedestal and then

reports its Model & Software version.

2.1. Quick Start Operation

If your system has been set up correctly and the ship has not moved since the system was used last. Operation of the

system from a cold start involves the following steps.

1. Turn on the AC power switches for the Antenna Control Unit (ACU) and other Below Decks Equipment..

2. Press NEXT until the Ship menu is displayed to check the Latitude, Longitude and Heading values. Latitude

and Longitude should still be correct, but may be updated if necessary. Heading, in some cases, will be 000.0

and you will have to enter the initial value of the ships current heading. Entry of ships heading is not required

when your system is connected to a 1:1 Synchro or NMEA 0183 Heading Gyro Compass output. To correct

the Heading value, press ENTER 3 times to select ship's heading (HDG) entry mode. Use the LEFT arrow to

bring the cursor up under the ones digit, then if desired, increment/decrement it using the UP/DOWN arrow

keys. Use the LEFT/RIGHT arrow keys to select other digits to modify and the UP/DOWN arrow key to

modify them as needed to enter the current ships gyro heading. Press ENTER to save the value. Press NEXT

to return to the Ship display menu.

3. If System Type parameter includes value 1, the ACU should automatically target the last satellite that was

used. If it does not, press NEXT to the Satellite display menu so you can manually target the satellite. If

you are targeting the SAME satellite longitude as was used last; Press ENTER, then the LEFT (or RIGHT)

arrow and then ENTER to target the same satellite. If you are targeting a different satellite you will need to

change the tracking parameters and then target the desired satellite, refer to the operation section for the

Satellite menu below.

A. If no signal is found: The Tracking LED will flash for a short period of time (per the SEARCH DELAY parameter)

followed by the Search LED coming ON. The ACU will automatically move the antenna in a spiral SEARCH pattern

until the ACU receives a signal (AGC) value that is greater than the threshold value. Tracking will take over (Tracking

LED ON) and automatically peak the antenna position for highest receive signal level from the satellite which has been

acquired.

B. If satellite signal is found AND network lock is achieved: The received signal level (AGC) will be higher

than the threshold value. Tracking will take over (Tracking LED ON) and automatically peak the antenna position for

highest receive signal level from the satellite and the satellite modem will get modem lock/receive sync. When the

ACU has signal above threshold AND modem has network lock the antenna will continue to track the satellite.

B. If satellite signal is found but network lock is NOT achieved: If you’re system has been setup to use the

network lock/satellite ID output from the satellite modem; When signal above threshold is found but the modem does

NOT get network lock (receive sync), the ACU will re-target in an attempt to find the satellite which has signal AND

network lock. This could be due to the antenna targeting the wrong satellite, polarization failure, modem failure (not

getting receive sync) or network failure (not allowing the modem to get receive sync). The ACU will continue to re-

target.

Upon completion of the above, the system will continue to operate automatically indefinitely until; AC power to

the system is interrupted OR The satellite signal is blocked OR The ship sails into an area of insufficient satellite

signal level.

2.2. Front Panel Layout

Operation DAC-2202 Antenna Control Unit

2-2

2.3. Basic Function of Front Panel Keys

Keyboard operation is very simple and straightforward. Basic function of each key is:

Press NEXT to cycle through the four main menus; Ship, Satellite, Antenna and Status (refer

to the Operation Flowcharts).

Press TRACK key to toggle the state of Tracking, ON/OFF. If SEARCH is ON, pressing the

TRACK key will turn search OFF.

When the Antenna main menu is displayed, pressing the LEFT arrow moves the antenna left

(CCW or down in azimuth). Pressing the RIGHT arrow to move the antenna right (CW or up

in azimuth).

In any sub-menu, pressing the LEFT or RIGHT arrow enters editing mode and brings up a

cursor in the display. When the cursor is under a character, it is selected and can be changed

(see UP/DOWN arrow below).

(Setup) - Press and release BOTH the LEFT and RIGHT arrow keys to access the save

parameters window. Press & Hold for six seconds to access the setup parameters (refer to

the Setup section of this manual).

When the Antenna main menu is displayed, press UP arrow to move the antenna up in

elevation or the DOWN arrow to move the antenna down in elevation.

Press the UP/DOWN arrow cycle Up and Down through the sub-menus.

When a sub-menu item is being edited, use the UP/DOWN to increment/decrement the

selected character. This steps the selected entry one increment per sequential key-press or

rapidly increments the selected entry when pressed & held.

At any main menu level, press ENTER to access the sub-menu items.

When viewing one of the sub-menus, pressing the ENTER key will step down through the

sub-menu items, like the DOWN arrow does.

When editing, the cursor is visible under a character in a sub-menu (whether it has been

changed or not), press ENTER to execute the present value, and return to display mode of

that sub-menu. This does NOT save the new value to NVRAM.

Press RESET to reset all the processors in the Antenna Control Unit. It does NOT reset the

antenna.

2.4. Basic Description of Front Panel Status LEDs

The basic description of the front panel LED states are:

Tracking - (Green LED)

ON indicates that the ACU has identified and is actively tracking the desired satellite to optimize the signal

level (AGC).

Blinking indicates that the ACU is in search delay or is analyzing a satellite signal.

OFF indicates that Tracking is OFF.

Searching - (Yellow LED)

ON indicates that the ACU is actively searching for your satellite signal.

OFF indicates that SEARCH is OFF.

Target - (Yellow LED)

ON indicates that the antenna is TARGETING (driving) to the specified Azimuth and/or Elevation position(s).

ON also indicates UNWRAP in limited azimuth antennas.

Power - (Green LED)

ON indicates that the Antenna Control Unit is energized.

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