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INSTALLATION AND OPERATION MANUAL
FOR SEA TEL MODEL
SERIES 04 KU-BAND TVRO ANTENNA
WARNING: Antenna Pedestal must be properly restrained (stowed) to
prevent damage to wire rope isolators, isolator springs and/or antenna pedestal mechanism during underway conditions
when power is removed from the antenna assembly.
Sea Tel, Inc.
4030 Nelson Avenue
Concord, CA 94520
Tel: (925) 798-7979
Fax: (925) 798-7986
Email: [email protected]
Web: www.cobham.com\seatel
October 27, 2008
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: [email protected]
Web: www.cobham.com\seatel
Sea Tel Inc doing business as Cobham SATCOM
Document. No. 122595 Revision C 1
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 Series 04 Family of Marine Stabilized Antenna Pedestals with DAC-2200 Antenna
Control Unit 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.
Copyright Notice
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.
Copyright © 2004 Sea Tel, Inc. ii
Revision History
REV ECO# Date
A N/A September 10, 2004
Description
Production Release
B
C
N/A
5499
June 29, 2006
June 25, 2007
Updated text and drawings
Change ACU to DAC-2202. Update text and drawings
C1 N/A October 27, 2008 Update logo and font
By
MDN
MDN
MDN
MDN iv
Series 04 Ku-Band TVRO Antenna Table of Contents
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Table of Contents Series 04 Ku-Band TVRO Antenna
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Series 04 Ku-Band TVRO Antenna Table of Contents
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Series 04 Ku-Band TVRO Antenna Introduction
1. Introduction
1.1. General Description of system
This shipboard TeleVision Receive Only (TVRO) system provides you with maritime satellite TV programming while you are in port or underway. Your Series 04 Antenna system will receive signals of adequately high E.I.R.P. levels (see the Specifications section of this manual), in linear or circular polarization mode from any of the geosynchronous TV satellites at Ku-band. This input will be distributed to all of your satellite TV receivers which will provide the Audio/Video to your televisions. Many satellites also provide CD quality audio programming which may also be routed to your stereo.
The Series 04 system is a fully stabilized antenna that 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.
The Series 04 system consists of two major groups of equipment; an above-decks group and a below-decks group. Each group is comprised of the items shown, and 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 IF signals from the antenna are distributed to the satellite receivers by the matrix switch. Video and Audio outputs from your satellite receivers are available for distribution and monitoring.
Figure 1-1 Series 04 Simplified Block Diagram Components
For more information about these components, refer to the Basic System Information section of this manual.
A. Above-Decks Equipment (ADE) Group
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Introduction Series 04 Ku-Band TVRO Antenna
1. Stabilized antenna pedestal with built-in GPS
2. Antenna Reflector
3. Feed Assembly with LNB
4. Radome Assembly
B. Below-Decks Equipment Group
5. DAC-2202 Antenna Control Unit
6. 2 or 4 input active Matrix Switch with desired number of outputs (one output to the ACU plus enough outputs for the installed satellite receivers).
7. Satellite Video Receiver(s) & Television(s)
8. Control, RF and Video cables
1.2. General scope of this manual
This manual describes the Sea Tel Model xx04 Antenna (also called the Above Decks Equipment), its operation and installation. The Below Decks Equipment is described in the manuals provided with your
DAC-2202 Antenna Control Unit. Refer to those manuals for their installation and operating instructions.
1.3. 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 TVRO Antenna are all contained in this manual
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Series 04 Ku-Band TVRO Antenna Operation
2. Operation
Operation of your system is accomplished from the Antenna Control Unit (ACU). Please refer to the operation section of the DAC-2202 Antenna Control Unit manual.
2.1. System Power-up
Turn ON the power switch on the front panel of the ACU. The Series 04 Antenna receives its DC power from the Antenna Control Unit (ACU) when the ACU is energized.
The ACU supplies +30 VDC and FSK Modulated RS422 at 70 KHz (TX) & 120 KHz (RX) to the ADE on the
Antenna Control Coax Cable.
2.2. Antenna Initialization
A functional operation check can be made on the antenna stabilization system by observing its behavior during the 4 phases of initialization.
Step 1. Turn on the AC power switch at the ACU front panel. Verify the level platform motor drives the level cage CCW to the stop and then CW 45 degrees.
Step 2. Verify the antenna moves forward or back to bring the top of the level cage to a level position in the fore/aft direction. This step takes approximately 10 seconds and will result in the dish being at 45 degrees in elevation. The level cage may still be tilted left or right at this time.
Step 3. After the level cage is positioned in the fore/aft direction, verify the antenna moves left or right to bring the top of the level cage to a level position in the left/right direction. This step also takes approximately 10 seconds.
Step 4. After the level cage is positioned in the left/right direction, verify the antenna moves CW
(up) in azimuth to the upper stop where the Relative position of the antenna will be 700.0 degrees.
From this point on the encoder will increment and/or decrement the Relative position of the antenna. Next, the antenna will drive CCW (down) in azimuth to a Relative position of 630.0.
The antenna will report its status, the PCUs model number & software version and the position information
(current Relative, Azimuth and Elevation ) to the ACU.
If any of theses steps fail, or the ACU reports model number as "xx04" re-configure the PCU as described in section the Setup section of the AU manual. If initialization still fails, refer to the troubleshooting section of this manual.
2.3. Antenna Stabilization
After initialization is complete, real-time stabilization of the antenna is an automatic function of the PCU.
2.4. Antenna Pedestal Operation
Operation of the stabilized antenna Pedestal Control Unit (PCU) is accomplished remotely by the DAC-2202
Antenna Control Unit (ACU). Refer to the Operation section of the DAC-2202 Antenna Control Unit (and/or
TSC-10 Touch Screen Controller) manual for more specific operation details. There are no other operating instructions applicable to the pedestal assembly by itself.
2.5. Tracking Operation
Tracking optimizes the antenna pointing, in very fine step increments, to maximize the level of the satellite signal being received. The mode of tracking used in this antenna is a variation of Conical Scanning called
DishScan. Tracking is controlled by the ACU. You can toggle Tracking ON/OFF from the ACU, or from the optional Touch Screen Controller.
DishScan continuously drives the antenna in a very small circular pattern at 60 RPM. The ACU evaluates the received signal throughout each rotation to determine where the strongest signal level is (Up, Right, Down or Left) and issues the appropriate Azimuth and/or Elevation steps to the antenna, as needed.
The pedestal cannot control tracking. Refer to the ACU manual for more Tracking information.
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Operation Series 04 Ku-Band TVRO Antenna
2.6. Antenna Polarization Operation
Your feed is equipped with a polarization motor and potentiometer feedback. Therefore, it can be used for
Linear or Circular, by simply installing the correct (linear or circular) Low Noise Block converter (LNB).
There is a ½ wave length phase card installed in the feed assembly. This causes the received satellite linear polarity to be mirrored/reversed in the feed. Therefore, to adjust polarization UP the LNB (as viewed from the back side of the reflector) must rotate CCW and to adjust polarity DOWN the LNB must rotate CW.
When adjusting polarity UP (from the ACU), the displayed polarization value in the ACU will increment up.
When adjusting DOWN, the displayed polarization value in the ACU will decrement down.
When you have a circular Polarized LNB installed (like the US DBS LNB) there is no need to adjust the polarization angle of the feed.
Refer to the maintenance section of this manual for procedures to change LNBs and optimize polarization while in Auto-Pol mode.
2.7. Low Noise Block Converter Operation
There are no operating instructions or controls applicable to the LNB. This unit is energized whenever the matrix switch and satellite receiver(s) have AC power connected to them.
Satellite signals are either circular polarized (spiraling plane down from the satellite) or linear polarized (fixed plane down from the satellite). The pedestal will receive circular polarization signals when a circular LNB is installed on the back of the dish. Conversely, the pedestal will only receive linear polarized signals when a linear LNB is installed.
2.8. Radome Assembly Operation
When operating the system it is necessary that the radome access hatch (and/or side door) be closed and secured in place at all times. This prevents rain, salt water and wind from entering the radome. Water and excessive condensation promote rust & corrosion of the antenna pedestal. Wind gusts will disturb the antenna pointing.
There are no other operating instructions applicable to the radome assembly by itself.=
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Series 04 Ku-Band TVRO Antenna Basic System Information
3. Basic System Information
This section provides you with some additional information about the satellites you will be using, basics of the your
Series 04 antenna system and other equipment within your system configuration.
3.1. Satellite Basics
The satellites are in orbit at an altitude of
22,753.2 Statute Miles positioned directly above the equator. Their orbital velocity matches the Earth’s rotational speed, therefore, each appears to remain at a fixed position in the sky (as viewed from your location).
The satellites are simply relay stations that are able to receive signals from one location on the globe and re-transmit them to a much larger area on the globe than a local
Figure 3-1 Arc of viewable Satellites
TV Station antenna could do. Because of their high vantage point, they are able to cover an area that is larger than a continent.
Your Series 04 antenna can be used with any of the Ku-Band (10.95-12.75GHz) satellites in this orbit that have a strong enough receive signal level in your location. Your antenna is capable of Linear or Circular signal reception, but requires that you have the appropriate LNB installed for the linear or circular signal and for the specific frequency range of that satellite.
If you could see the satellites in their positions above the equator, they would appear to form an arc as shown here (as viewed from a position in the Northern Hemisphere). When you are on the same longitude as the satellite, its’ horizontal and vertical signals will be purely aligned to your horizon. When the satellite is east or west of your longitude, the satellite signals will appear to be rotated clockwise or counter-clockwise from pure horizontal and vertical. Both horizontal and vertical signals from a satellite will appear to be rotated the same amount and are always perpendicular to each other. The amount of rotation is dependent on how far east or west the satellite is from you and how close you are to the Equator.
3.1.1. Ku-Band Frequency (10.95-12.75GHz)
At these frequencies the signal from the satellite travels only in a straight line and is affected by weather changes in the atmosphere. There are several conditions that can cause a temporary loss of satellite signal, even within an area where the signal level is known to be adequate. The most common of these normal temporary losses are blockage and rain fade. They will normally interrupt services only as long as the cause of the loss persists.
Blockage - Blockage is loss due to an object in the path of the signal from the satellite to the dish.
If an object that is large and dense is positioned in the path of the signal from the satellite, it will prevent sufficient signal from arriving at the dish. The signal can not bend around, or penetrate through, these objects. The reception will be degraded or completely interrupted until the object is no longer in the path of the signal to the dish. The dish is actively driven to remain pointed at the satellite (toward the equator) so, as the boat turns a mast or raised structure on the boat may become positioned between the satellite and the dish. Blockage may also be caused a person standing near the radome, tall mountains, buildings, bridges, cranes or other larger ships near your boat. Signal will be lost when the boat is housed inside an enclosure that the signal cannot penetrate, like a paint shed or a berth with a roof. Moving or rotating the boat to position the antenna where it has an unobstructed view to the desired satellite will restore the antennas ability to receive the satellite signal.
Rain Fade - Atmospheric conditions that may cause sufficient loss of signal level include rain, snow, heavy fog and some solar activities such as sun spots and solar flare activity. The most common of these is referred to as “rain fade”. Rain drops in the atmosphere reduce the signal from
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Basic System Information Series 04 Ku-Band TVRO Antenna the satellite. The heavier the rain, the greater the signal loss. When the amount of loss is high enough, the antenna will not be able to stay locked onto the satellite signal. Once the amount of rain has decreased sufficiently, the antenna will re-acquire the satellite signal. In strong signal areas, rain fall of about four inches per hour will cause complete loss of signal. In weaker signal areas, lighter rainfall might cause the signal to be lost.
3.1.2. Signal level
The level of the receive signal on a point on the globe is dependant upon how powerful the transmission is and how wide the signal beam is coverage area is. Focusing the signal into a narrower beam concentrates its energy over a smaller geographic area, thereby increasing the signal level throughout that area of coverage. This makes it possible for you to use a smaller antenna size to receive that satellite signal. The antenna system must be geographically located in an area where the signal level from the satellite meets (or exceeds) the minimum satellite signal level required for your size of antenna (refer to the Specifications section of this manual) to provide suitable reception. This limits the number of satellites that can be used and the geographic areas where the ship can travel where the signal level is expected to be strong enough to continue providing uninterrupted reception. When travelling outside this minimum signal coverage area, it is normal for the system to experience an interruption in its ability to provide the desired satellite services until entering (or re-entering) an area of adequate signal level (refer to the satellite footprint information). Systems with larger diameter dish antennas can receive signal further out towards the fringe of a given satellites coverage area.
3.1.3. Satellite Footprints
The focused beam(s) from the satellites are normally aimed at the major land masses where there are large population centers. Footprint charts graphically display the signal level expected to be received in different geographic locations within the area of coverage. The signal will always be strongest in the center of the coverage area and weaker out toward the outer edges of the pattern.
The Drawing section of this manual contains footprint charts of satellites that are expected to provide adequate signal level for your size antenna. The coverage areas are intended to be a guide to reception, however, the actual coverage area and signal level and vary. Also the signal strength is affected by weather.
3.1.4. Satellite polarization
Satellites may transmit their signals in one of two different polarization modes, linear (like a flat ribbon down from the satellite) or circular (like a twisted ribbon spiraling down from the satellite). The series
04 antennas can receive either linear or circular satellite signals, but not at the same time.
The feed assembly installed on your antenna is designed to be fitted with a linear LNB (to receive horizontal and vertical linear polarized satellite transmissions) or a circular LNB (to receive left hand or right hand circular polarized satellite transmissions). A motor, which is controlled by the
ACU (Auto or Manual polarization), adjusts the
“polarization” angle of the LNB installed on the feed.
When you have a linear LNB installed on the back of the dish (see the Maintenance section of this manual), polarization adjustment is required to optimize the alignment of the LNB to match the angle of the signal from the satellite. Auto-
Polarization mode of the ACU normally will keep the polarization optimized for you. When you are on the same longitude as the satellite, its’ horizontal and vertical signals will be purely aligned to your
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Figure 3-2 Satellite Signal
Series 04 Ku-Band TVRO Antenna Basic System Information horizon. When the satellite is east or west of your longitude, the satellite signals will appear to be rotated clockwise or counter-clockwise from pure horizontal and vertical. Both horizontal and vertical signals from a satellite will appear to be rotated the same amount and are always perpendicular to each other. The amount of rotation is dependent on how far east or west the satellite is from you and how close you are to the Equator.
When you have a circular LNB installed on the back of the dish (again see the Maintenance section of this manual) no periodic polarization adjustments are required to optimized the satellite signal.
However, you will leave Auto-Polarization mode ON in the ACU.
3.2. Antenna Basics
The satellite dish is mounted on a three jointed pedestal. As your boat rolls, pitches and turns in the water, these three joints move to keep the dish pointed at the satellite. The following information is provided to explain some of the basic functions of the antenna:
3.2.1. Azimuth
The clockwise, or counter-clockwise, rotation of the antenna is called Azimuth rotation. The antenna can rotate a total of 690 degrees between two mechanical stops. Azimuth drive, provided by the azimuth motor, is required during stabilization, searching, tracking and unwrap operations of the antenna. As the boat turns, azimuth is driven in the opposite direction so the dish remains pointed at the desired satellite. The actual azimuth pointing angle to the satellite is determined by the ships latitude & longitude and the longitude of the satellite. It is important to know that the antenna should be pointed (generally) toward the equator.
If the ship is in the Northern Hemisphere, the azimuth angle to the satellite would be 180 degrees true (relative to true north) if the satellite is on the same longitude as the ship. If the satellite is east or west of your longitude, the azimuth will be less than, or greater, than 180 degrees respectively.
When checking for blockage you can visually look over the antenna radome toward the equator to see if any objects are in that sighted area. If you are not able to find any satellites it may also be useful to remove the radome top to see if the dish is aimed the correct direction (towards the equator).
3.2.2. Elevation
The antenna can physically be rotated in elevation from –15 degrees (lower stop) to +120 degrees
(upper stop). However, you will only be pointing elevation between 00.0 (horizon) and 90.0
(zenith). Elevation drive, provided by the elevation motor, is required during stabilization, searching and tracking operations of the antenna. The actual elevation pointing angle to the satellite is determined by your latitude & longitude and the longitude of the satellite. In general terms, the elevation angle will be low when the ship is at a high latitude and will increase as the ship gets closer to the equator.
Additionally, from any given latitude, the elevation will be highest when the desired satellite is at the same longitude that you are on (refer to figure 3-1). If the desired satellite is east, or west, of your longitude the elevation angle will be lower.
3.2.3. Antenna Reflector/Feed Assembly
Comprised of a hydro-formed aluminum reflector with a Cassegrain feed assembly. The feed assembly is fitted with a polarization motor and a potentiometer for position feedback required for linear signal operation. A variety of interchangeable LNBs can be easily fitted to the feed, allowing it to be used for a linear or circular reception from a variety of satellites.
When a linear LNB is installed, the ACU automatically adjusts the feed by remotely controlling the
24 volt DC motor, using the potentiometer feedback for Linear polarization position (Auto-
Polarization mode).
When a circular LNB is installed, no polarization adjustment is required. The ACU automatically adjusts the feed, as in linear operation, but the circular LNB receives the signal properly regardless of its polarization position.
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Basic System Information Series 04 Ku-Band TVRO Antenna
3.2.4. Antenna polarization
When you have a linear LNB installed the polarization needs to be periodically adjusted, Auto-
Polarization will automatically accomplish this for you. You do not need to adjust the “polarization” of the antenna when you have a circular LNB installed, but rotation of the LNB does not have any detrimental effect, so Auto-Pol should remain ON.
There is a ½ wave length phase card installed in the feed assembly. This causes the received satellite linear polarity to be mirrored/reversed in the feed. Therefore, to adjust polarization UP the
LNB (as viewed from the back side of the reflector) must rotate CCW and to adjust polarity DOWN the LNB must rotate CW.
Polarization adjustment to optimize Auto-Pol is required when initially setting up the system or after you have installed a different LNB (refer to the Maintenance Section of this manual).
3.2.5. Interchangeable LNBs
Series 04 antenna can easily be fitted with a variety of LNBs. The feed is capable of receiving linear or circular polarization signals, however, the LNB must match the type of polarization and the frequency band of the desired satellite. You must also have the correct receiver(s) installed below decks to decode each of the desired programming packages (as an example; To receive DirecTV in the US you must have DirecTV receivers installed, but DirecTV Latin America programming requires different receivers). Refer to the Maintenance section of this manual for the procedure used to change an LNB. The LNBs which may be used with this system are:
US Circular LNB - This LNB is used to receive DirecTV, Dish Network or Bell ExpressVu programming.
DLA Circular LNB - This LNB is used to receive DirecTV Latin America programming.
European Quad Universal Linear LNB - This LNB is very popular for use in Europe. It can be used to receive low band horizontal & vertical AND/OR high band horizontal & vertical linear services at the same time. It can be used to receive one high band satellite or one low band satellite. Or it can receive both high & low band satellites at the same time, as long as they are at the same longitude position. It can NOT be used to receive two satellites at different longitude locations at the same time.
3.2.6. Stabilization
The Series 04 antennas are stabilized in three axes of motion. Stabilization is the process of decoupling 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. To accomplish this, the Pedestal
Control Unit (PCU) on the antenna pedestal senses any motion of the antenna and immediately applies drive to the appropriate motor(s) to oppose the sensed motion. Azimuth (AZ), Elevation (EL) and Cross-Level (left-right tilt) are actively stabilized automatically by the PCU as part of its normal operation.
3.2.7. Search Pattern
Whenever the desired satellite signal is lost (such as when the antenna is blocked), the Antenna
Control Unit will automatically initiate a search to re-acquire the desired signal.
The search is conducted with alternate azimuth and elevation movements. The size and direction of the movements are increased and reversed every other time resulting in an expanding square pattern.
When the antenna finds the desired satellite signal, the ACU will automatically stop searching and begin Tracking the signal. Tracking optimizes the pointing of the antenna to get the highest signal level from the satellite.
3.2.8. Tracking Receiver - Satellite Identification Receiver
The Satellite Identification Receiver located in the Antenna Control Unit (ACU) is used to acquire, identify and track a specific satellite by a unique network ID code (NID). The receiver must be set up properly for the satellite you wish to find & track. These receiver settings should be saved to expedite finding, or re-acquiring, the desired satellite in the future.
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Series 04 Ku-Band TVRO Antenna Basic System Information
When searching for a desired satellite, this receiver compares any satellite ID it finds to the saved satellite ID code. If the ID code does not match the antenna will continue searching until the correct satellite is found. The system must have adequate satellite signal level, AND the matching
ID, to stop searching (and continue tracking the desired satellite).
If you have the optional Touch Screen Controller (TSC-10) you can setup multiple “favorite satellites” and subsequently switch to different “favorite” satellite with two touches on the main
(home) screen.
3.2.9. Tracking
The Series 04 antenna actively optimizes the pointing of the dish for maximum signal reception.
This process is called tracking and is accomplished by continuously making small movements of the dish while monitoring the level of the received signal. Evaluation of this information is used to continuously make minor pointing corrections to keep the signal level “peaked” as part of normal operation.
3.2.10. Unwrap
Mechanical stops limit the azimuth rotation to a total of 690 degrees. The mechanical stops are at
Relative 020.0 and 700.0. When the azimuth rotation is within 3 degrees of either mechanical stop, the antenna will be driven 360 degrees away from that stop. This “Unwraps“ (unwinds) the cables that are routed through the pedestal assembly so that they do not become too severely twisted. It also repositions the antenna to a point which is closer to the middle of its mechanical stops.
UNWRAP should occur when the Relative position of the antenna is at 023.0 or 697.0.
By rotating 360 degrees the azimuth position of the antenna will have returned to the previous
Azimuth position and will resume tracking the desired satellite. Unwrap will occur whenever the boat has turned far enough in one direction for it to be required. It is normal for the satellite signal to be lost, and the television picture to “freeze frame”, until the antenna completes unwrap and resumes tracking the satellite.
3.3. Components of the System Configuration
The following text provides a basic functional overview of the system components and component interconnection as referred to in the simplified block diagram below. Also, refer to the appropriate page of the System Block Diagram which depicts your system configuration for further detail.
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Basic System Information Series 04 Ku-Band TVRO Antenna
Figure 3-3 Series 04 Simplified Block Diagram
The Series 04 system is comprised of two major sections: The Above-Decks Equipment (ADE) is comprised solely of the Series 04 antenna radome assembly which is mounted outside, on the boats upper deck or mast location. The Below-Decks Equipment (BDE) includes the Antenna Control Unit, may include the optional Touch Screen Controller panel, satellite receiver(s), TV set(s) and all other ancillary equipment that is mounted in various locations throughout the interior of the boat.
3.3.1. Antenna ADE Assembly
The Above Decks Equipment consists of an Antenna Pedestal inside a Radome assembly. The pedestal consists of a satellite antenna dish & feed with a linear, or a circular Low Noise Block converter (LNB) with polarization motor mounted on a stabilized antenna pedestal. The radome provides an environmental enclosure for the antenna pedestal assembly inside it. This keeps wind, water condensation and salt-water spray off the antenna pedestal assembly. This prevents damage and corrosion that would shorten the expected life span of the equipment.
The antenna control cable is connected between the antenna radome assembly and the antenna control unit. This cable provides DC voltage to the antenna and all control signals to and from the antenna.
Up to five other RG-6 (or better) coax cables are connected from the antenna radome assembly to the below decks equipment. One of these cables is the
Antenna Control Cable, which has the DC operating voltage for the antenna and the antenna control communication between the Antenna Control Unit and the Pedestal Control Unit. Up to four cables carry the intermediate frequency (950-2050MHz) signals
Figure 3-4 Series 04 Above Decks Equipment
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Series 04 Ku-Band TVRO Antenna Basic System Information from the antenna assembly directly to the matrix switch and the DC Voltage & Tone switching from the Matrix Switch to the a the LNB. All four should be provided, even if you are only currently using two for the LNB you presently have installed on your antenna. These cables ultimately provide the input signal into the satellite receiver(s). And finally, one coax is installed as a spare.
3.3.2. Antenna Control Unit
The Antenna Control Unit allows the operator to control and monitor the antenna pedestal with dedicated function buttons, LED’s and a 2 line display. The ACU and its Terminal Mounting Strip are normally mounted in a standard 19” equipment rack. The ACU should be mounted in the front of the equipment rack where it is easily accessible. The Terminal Mounting Strip is normally mounted on the rear of the equipment rack. It is recommended that the antenna control panel be mounted near one of the Satellite Receiver locations where you can see the television screen while you are controlling the antenna.
The Antenna Control Unit is connected to the antenna, ships Gyro Compass and to the optional
Touch Screen Controller (when included).
Figure 3-5 DAC-2200 Antenna Control Unit
The Antenna Control Unit (ACU) communicates via an 70/120 KHz full duplex data link with the
Pedestal Control Unit (PCU) located on the antenna. This control signal is sent up the Antenna
Control Coax cable along with the DC voltage for the antenna power. 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.
3.3.3. Power Supply
AC Voltage - An appropriate source of AC Voltage will also be required for the ACU, satellite receivers and television monitors. Refer to the manuals for these devices for voltage and power consumption of each. Total power consumption will depend on the number of satellite receivers and television monitors used.
3.3.4. Satellite Receivers
The Series 04 system, with the appropriate LNB installed, can be used with standard European satellite receivers, and Integrated Receiver-Decoders (IRD). Both can receive “free” programming, but an IRD is required when the desired programming is encrypted. When authorized, it will decode the encrypted signals for use. Authorizing the receiver-decoder is a process of registering your receiver(s) and paying subscription fees to the service provider. The service provider then arranges for a signal to be sent through the satellite to your receiver-decoder, which will “enable” it to decode the programming you subscribed to.
A coax connection from the antenna (via the matrix switch) provides signal input to the receiver.
The receiver also outputs voltage and tone control to the matrix switch to select the correct band and polarization signal for the channel you want to watch. A coax connection from the TV
OUTPUT jack on the satellite receiver is connected to the ANTENNA INPUT on the television.
Alternately, individual audio/video, Audio & S-Video, or SCART cable connections may be made between the satellite receiver and the television.
3.3.5. Television/Monitor
An appropriate television monitor is used to view the satellite television programming and the on screen displays from the receiver. Your television/monitor must be able to display the video
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Basic System Information Series 04 Ku-Band TVRO Antenna standard outputted from the satellite receiver. In some areas the satellite receiver may pass several different video formats, depending on the program being watched. You may need a video standards converter for each television/monitor which is not capable of displaying the signal being received (NTSC, PAL or SECAM video input) “Multi-Standard” televisions/monitors are able to automatically display any of the major video standard inputs. Consult your Television/Monitor manual for specifics.
3.3.6. Matrix Switch
The Matrix Switch routes the satellite signal from one of the IF cables to one of your receivers. As you change channels on the satellite receiver, it uses the voltage, and/or tone, to select the correct signal input for the channel you have selected.
Each output of the matrix switch is controlled by voltage, and/or tone, from the satellite receiver connected to that output connector. Voltage level on the coax selects which polarity, Tone selects which band of the input signals gets routed to that output connector, therefore, to that receiver.
Each output of the matrix switch operates independently of the others, therefore, allows the satellite receivers to operate independently also.
The matrix switch is normally installed with the Below Decks Equipment. The antenna IF coax cables are connected to its LNB inputs and a coax cable (RG-6 OR greater) is connected from one of its outputs to each satellite receiver. One of these outputs must be connected the tracking receiver in the ACU.
Sea Tel recommends that an ACTIVE Matrix be used in all installations. Matrix switches with 4, 8,
12 and 16 outputs are available.
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Series 04 Ku-Band TVRO Antenna Installation
4. Installation
Below are basic steps to guide you in installing this equipment, but you may choose to complete the installation steps in a different order. Read this complete section before starting. Installation of the DAC-2202 Antenna Control
Unit may have already have been performed using its Installation and Operation manual instructions.
The following instructions describe the installation procedures for installing the Series 04 Antenna (ADE).
4.1. General Cautions & Warnings
CAUTION - Allow only an authorized dealer to install or service the your Sea Tel
Television Receive Only System components. Unauthorized installation or service can be dangerous and can invalidate the warranty.
WARNING: Assure that all nut & bolt assemblies are tightened according the
tightening torque values listed below:
Bolt Size Inch Pounds
1/4-20 75
5/l6-18 132
7/16-14 376
1/2-13 517
NOTE: All nuts and bolts should be assembled using the appropriate Loctite thread-
locker product number for the thread size of the hardware.
Loctite # Description
222
243
262
271
Low strength for small fasteners.
Medium strength, oil tolerant.
Permanent strength for up to ¾” diameter fasteners.
Permanent strength for up to 1” diameter fasteners.
290 Wicking, High strength for fasteners which are already
assembled.
4.2. Site Survey
The site survey is performed to decide where the best location for the equipment to be installed is. The radome assembly (ADE) should be installed at a location aboard ship where:
1. The antenna has a clear line-of-sight to as much of the sky (horizon to zenith at all bearings) as is practical.
2. The antenna is a minimum of 15 feet from the ship’s radar, especially high power radar arrays.
3. The antenna is not mounted on the same plane as the ship’s radar, so that it is not directly in the radar beam path.
4. The antenna is a minimum of 15 Feet from high power short wave transmitting antennas are not in close proximity.
5. The antenna must be installed in a rigid mounting location that will not flex, or sway, in ship’s motion or vibration.
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Installation Series 04 Ku-Band TVRO Antenna
6. The Above Decks Equipment (ADE) and the Below Decks Equipment (BDE) should be positioned as close to one another as possible. This is necessary to reduce the losses associated with long cable runs.
If these conditions cannot be entirely satisfied, the site selection will inevitably be a “best” compromise between the various considerations. However, the warranty of the antenna will not cover physical or electrical (RF) damage of the antenna due to the compromised location.
4.3. Preparing For The Installation
4.3.1. Unpack Shipping Crates
Exercise caution when unpacking the equipment crate(s). Carefully inspect the radome surface for evidence of shipping damage.
4.3.2. Installing The Cables
Install appropriate cables from ADE to the BDE Location. Exercise caution during the cable installation to assure that the cables are not severely bent (proper bend radius) or twisted and that connectors are not damaged. Ensure that the cables have been run through watertight fittings and/or will not permit water entry into the boat when the installation is completed.
4.4. Preparing the ADE for Lift
WARNING: Hoisting with other than a webbed four-part sling may result in catastrophic crushing of the radome. Refer to the specifications and drawings for the fully assembled weight of your model Antenna/Radome and assure that equipment used to lift/hoist this system is rated accordingly.
CAUTION: The antenna/radome assembly is very light for its size and is subject to large swaying motions if hoisted under windy conditions. Always ensure that tag lines, attached to the radome base frame, are attended while the antenna assembly is being hoisted to its assigned location aboard ship.
1. The antenna pedestal is shipped completely assembled in its radome.
2. Remove the shipping nuts which mount the ADE to the pallet.
3. Attach a four part web strap lifting sling to the four lifting pad eyes on the radome lip.
4. Using the web strap lifting sling arrangement, and with a tag line attached near the radome base, hoist the antenna assembly to its assigned location aboard the ship by means of a suitably sized crane or derrick.
5. The radome assembly should be positioned with the BOW marker aligned as close as possible to the centerline of the ship. Small variations from actual alignment can be compensated with the
AZIMUTH TRIM adjustment in the ACU, so precise alignment is not required.
6. Bolt the radome base directly to the ship's deck or mounting plate (flat mounting area).
4.5. Antenna Pedestal Mechanical Checks
1 Open the radome hatch, or remove the top, to access the antenna pedestal.
2 Inspect the pedestal assembly and reflector for signs of shipping damage.
3 Remove the web strap shipping restraints from the pedestal. Save these straps to restrain
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Series 04 Ku-Band TVRO Antenna Installation the antenna in the event that the AC power will be turned off while the ship is
underway.
4 Cut and discard the large white tie-wraps from the pedestal.
5 Check that the antenna moves freely in azimuth, elevation, and cross level without hitting any area of the interior of the radome.
6 Check that the antenna assembly is balanced front to back, top to bottom and side to side by observing that it remains stationary when positioned in any orientation. (Refer to the maintenance section of this manual for complete information on balancing the antenna).
7 Check that all pedestal wiring and cabling is properly dressed and clamped in place.
8 See cable terminations section below.
4.6. Cable Terminations
CAUTION: Rough handling, tight bending, kinking, crushing and other careless handling of the cables and their connectors can cause severe damage.
The cables must be routed from the above-decks equipment group through the deck and through various ship spaces to the below-decks equipment group. When pulling the cables in place, avoid sharp bends, kinking, and the use of excessive force. After placement, seal the deck penetration gland and tie the cables securely in place.
4.6.1. At The Radome
The coax cables must be inserted through the cable strain relief(s) at the base of the radome. Apply
RTV to the strain relief joints and tighten the compression fittings to make them watertight. The cables are color coded for easy connection identification. (Refer to the System Block Diagram for cable color assignment).
4.7. Final Checks
Double check all your work and do a good visual inspection. Rotate the antenna in azimuth to assure rotation is free and there is no binding or fouling in the cables you installed. Rotate the antenna in elevation and Cross-Level to assure that the pedestal moves freely and that there is no binding.
4.8. Power-Up – Observe the Antenna
When all the hardware and cables have been installed, have someone turn the ACU power ON. This will energize the antenna and it will begin Initialization. Observe initialization of the antenna to verify that each phase of the initialization is completed satisfactorily (refer to Initialization Sequence in the
Maintenance section of this manual).
Close and fasten the radome hatch. Assure that the radome hatch is closed and secured when entry into the radome is no longer required.
4.9. Setup
Refer to the Setup information in the next section of this manual. Also refer to the Setup instructions the
Antenna Control Unit manual to assure that the ACU settings and parameters are set correctly.
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Installation Series 04 Ku-Band TVRO Antenna
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Series 04 Ku-Band TVRO Antenna Setup
5. Setup
Below are basic steps to guide you in setting up the ACU. Assure that the Antenna Pedestal (ADE) has been properly installed before proceeding.
5.1. Operator Settings
Refer to the Operation chapter of the ACU manual to set the Ship information. Latitude and Longitude should automatically update when the GPS engine mounted on the antenna pedestal triangulates an accurate location, but you may enter this information manually to begin. You will have to initially enter the current heading of the ship after which the Gyro Compass will keep the ACU updated.
Then set the Satellite information for the satellite you will be using. The receiver settings are especially important.
After the Ship and Satellite setting have been made you should be able to target the desired satellite.
Continue with the setup steps below to optimize the parameters for your installation.
5.2. Optimizing Targeting
Ensure that all your Ship & Satellite settings are correct. Target the desired satellite, immediately turn
Tracking OFF and record the Antennas Azimuth and Elevation positions (Calculated Position) when it finishes targeting. Turn Tracking ON, allow the antenna to “Search” for the targeted satellite and assure that it has acquired (and peaks up on) the satellite that you targeted. Now, record the Antenna Azimuth and
Elevation positions while peaked on the targeted satellite (Peak Position). Subtract the Peak Positions from the Calculated Positions to determine the amount of Trim which is required. Refer to the ACU manual
Setup information for instructions on how to key in the required value of Elevation Trim. Continue with
Azimuth trim, then re-target the satellite several times to verify that targeting is now driving the antenna to a position that is within +/- 1.0 degrees of where the satellite signal is located. EXAMPLE: The ACU targets to an Elevation position of 30.0 degrees and an Azimuth position of 180.2 (Calculated), you find that Peak
Elevation while ON your desired satellite is 31.5 degrees and Peak Azimuth is 178.0. You should enter an EL
TRIM value of –1.5 and an AZ TRIM of +2.2. When completed, record the optimized TRIM settings in the
“My Parameters” column of the default parameters setup table.
5.3. Optimizing Auto-Polarization TVRO
If your system is fitted with a circular feed you do not need to optimize the polarity angle and can skip this procedure. This procedure optimizes the linear polarization of the feed. Verify that tracking is ON and that the antenna is peaked on your targeted satellite (targeting calculates the azimuth, elevation and polarization angles). Assure that you are in Auto-Pol mode (POL TYPE parameter in the ACU is set to 0072) and set one of your satellite receivers to view its signal level display. Go to the POL OFFSET parameter in the Setup menu of the ACU.
Default setting is 0030 and may be incremented, or decremented, to adjust polarization while in Auto-Pol mode. Each increment equals one degree of polarization rotation (0038 = +8 degrees), decrement below 30 for minus polarization (0022 = -8 degrees). Press the UP arrow to increment or the DOWN arrow to decrement the value and then hit the ENTER key to adjust the feed to the new value.
Adjust the polarization UP until you see the signal level on the receiver fall. Note the “high” offset value and adjust the offset DOWN until you see the signal peak and then begin to fall. Note this “low” offset value.
Set POL OFFSET to a value that is mid-way between the high & low values you just observed. Save your new
POL OFFSET value (refer to Save New Parameters in your ACU manual).
5.4. Radiation Hazard and Blockage Mapping
The ACU can be programmed with ship relative azimuth limits to enhance operation where there are known blockage regions. Tracking and auto Search are suspended when the antenna is pointed within this region to speed signal re-acquisition when the ship turns and the antenna comes out of signal blockage. The
BLOCKED condition is displayed in the TRACKING window. AZ LIMIT 1 is the Lower Relative AZ limit for pattern blockage mapping. AZ LIMIT 2 is the Upper Relative AZ limit for pattern blockage mapping.
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Setup Series 04 Ku-Band TVRO Antenna
The ACU also provides a contact closure to ground on the SW1 terminal (J3-11) on the Terminal Mounting
Strip when the antenna is pointed within the blockage region or the system is searching, targeting or unwrapping. The contact closure is a transistor switch with a current sinking capability of 1 Amp. This signal can be used to control dual antenna coax switches to select IF signal connections from a second antenna when the primary antenna is blocked.
Programming instructions:
Determine the Relative AZ limits that cause signal blockage by monitoring the REL display readings or by graphing the expected blockage pattern. The Relative angles are with respect to the Pedestal reference, which is normally pointed at the bow (360.0 Relative). In a dual cable-wrap antenna system, one of the antennas may be pointed aft so its relative limits will be with respect to aft. The relative angles must be in the range of 0 to 360 degrees (0000-3600). Convert the relative readings to limit values by multiplying by
10. Enter the beginning of the blockage region as AZ LIMIT 1 and the end of the region (clockwise direction from AZ LIMIT 1) as AZ LIMIT 2.
EXAMPLE: A drill ship has two antennas mounted in the front of the ship with a derrick blocking the antenna’s view to the rear. The Port antenna is mounted referenced to the bow and is blocked from 160 to
175 degrees. The Starboard antenna is mounted reference to the stern and is blocked from 355 to 375 degrees relative to the stern. (375-360=015).
The limits for the port antenna are: The limits for the starboard antenna are:
AZ LIMIT 1 = 160 x 10 = 1600 AZ LIMIT 1 = 355 x 10 = 3550
AZ LIMIT 2 = 175 x 10 = 1750 AZ LIMIT 2 = 15 x 10 = 0150
Note: The AZ LIMITS of the starboard antenna are entered as 355 to 375 degrees. This defines a blockage zone of 20 degrees. If the limits were entered as 015 to 355, the blockage zone would be 340 degrees.
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Series 04 Ku-Band TVRO Antenna Setup
5.5. Default Setup Parameters – Series 04
The following table shows the factory default parameters for the DAC-2200 interfaced to a Series 04
Antenna PCU. When the installation & setup of your system is finished you can record the “optimized” settings for your system in the “My Parameters” column. Refer to the Setup Flow-Charts and individual parameter setting information in the Setup section of your DAC-2200 manual for how to enter/change the parameters.
PARAMETER Ku DishScan My Parameters
EL TRIM
AZ TRIM
AUTO THRES
EL STEP SIZE
AZ STEP SIZE
STEP INTEGRAL
SEARCH INC
SEARCH LIMIT
SEARCH DELAY
SWEEP INC
SYSTEM TYPE
GYRO TYPE
POL TYPE
POL OFFSET
POL SCALE
AZ LIMIT 1
AZ LIMIT 2
5V OFFSET
5V SCALE
TX POLARITY
0
0
3004=100, 4004=130,
5004=160
0
0
0
10
100
30
0080
69
0002
0
0
0
0
72
30
90
2
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Setup Series 04 Ku-Band TVRO Antenna
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Series 04 Ku-Band TVRO Antenna Functional Testing
6. Functional Testing
If not already ON, Turn ON the Power switch on the front panel of the ACU.
6.1. (OPTIONAL) TSC-10 Touch Screen Controller Checks
Refer to the functional testing chapter of the TSC-10 manual for check to perform.
6.2. 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" and the PCU software version number. If the display shows "REMOTE
INITIALIZING”, wait approximately 2 minutes for the antenna to complete initialization and report the Antenna Model and PCU software version. If “REMOTE NOT RESPONDING" is displayed, refer to the Troubleshooting Section of this manual.
2. Press the NEXT key repeatedly to display the Ship, Satellite, Antenna and Status menu displays.
This verifies that the displays change in the correct response to the keys.
6.3. Latitude/Longitude Auto-Update check
This verifies that the GPS antenna mounted on the antenna pedestal is automatically updating the current ship’s position information. If the GPS is not updating the ACU properly, refer to the Troubleshooting
Section of this manual.
1. Press the NEXT key repeatedly to display the Ship menu. Press ENTER to access edit mode and view the current Latitude value.
2. Press the LEFT arrow key to bring the cursor up under the ones digit, press UP and then hit ENTER.
The display should immediately show a latitude value one degree higher. If the GPS engine mounted on the Antenna Pedestal is working properly the incorrect value will be overwritten within several seconds (back to the correct current value).
3. This test does not need to be repeated in the Longitude menu.
6.4. Azimuth & Elevation Drive
This check verifies that the antenna moves in the correct direction in response to the keys. If the antenna is not driving properly, refer to the Troubleshooting Section of this manual.
1. Press the NEXT key several times to display the Antenna menu.
2. Press the Tracking key to toggle Tracking OFF.
3. Press the UP arrow key repeatedly and verify that the antenna moves up in elevation.
4. Press the DOWN arrow key repeatedly and verify that the antenna moves down in elevation.
5. Press the RIGHT arrow key repeatedly and verify that the antenna moves up in azimuth.
6. Press the LEFT arrow key repeatedly and verify that the antenna moves down in azimuth.
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Functional Testing Series 04 Ku-Band TVRO Antenna
6.5. Four Quadrant Tracking Test
This verifies that the antenna moves in the correct response to the keys, that Tracking is signaling correctly and that the Tracking commands are being carried out (antenna drives to peak).
1. Press the NEXT key several times to display the Antenna menu.
2. Note the current peak ACG value. Press the Tracking key to toggle Tracking OFF, press the UP arrow key repeatedly to move the antenna up in elevation until AGC falls about 100 counts. Turn
Tracking ON and verify that the antenna moves back down in elevation and that the AGC rises to its’ previous high value.
3. Note the current peak ACG value. Press the Tracking key to toggle Tracking OFF, press the DOWN arrow key repeatedly to move the antenna down in elevation until AGC falls about 100 counts.
Turn Tracking ON and verify that the antenna moves back up in elevation and that the AGC rises to its’ previous high value.
4. Note the current peak ACG value. Press the Tracking key to toggle Tracking OFF, press the RIGHT arrow key repeatedly to move the antenna up in azimuth until AGC falls about 100 counts. Turn
Tracking ON and verify that the antenna moves back down in azimuth and that the AGC rises to its’ previous high value.
5. Note the current peak ACG value. Press the Tracking key to toggle Tracking OFF, press the LEFT arrow key repeatedly to move the antenna down in azimuth until AGC falls about 100 counts. Turn
Tracking ON and verify that the antenna moves back up in azimuth and that the AGC rises to its’ previous high value.
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Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
7. Troubleshooting and Maintenance
This section describes the theory of operation to aid in troubleshooting and adjustments of the antenna system.
Refer to the Trouble shooting section of the DAC-2200 for additional troubleshooting details.
7.1. Warranty Information
Sea Tel Inc. supports its Series 04 systems with a TWO YEAR warranty on parts and ONE YEAR warranty on labor.
What’s Covered by the Limited Warranty?
The Sea Tel Series 04 Limited Warranty is applicable for parts and labor coverage to the complete antenna system, including all above-decks equipment (radome, pedestal, antenna, motors, electronics, wiring, etc.) and the Antenna Control Unit (ACU).
What’s NOT Covered by the Limited Warranty?
It does not include Television sets, DBS/DTH receivers, multi-switches or other distribution equipment, whether or not supplied by Sea Tel commonly used in TVRO Systems. Televisions, DBS/DTH receivers and accessories are covered by the applicable warranties of the respective manufacturers.
Factory refurbished components used to replace systems parts under this warranty are covered by this same warranty as the original equipment for the balance of the original warranty term, or ninety (90) days from the date of replacement, whichever occurs last. Original Installation of the Series 04 system must be accomplished by or under the supervision of an authorized Sea Tel dealer for the Sea Tel Limited Warranty to be valid and in force.
Should technical assistance be required to repair your system, the first contact should be to the agent/dealer you purchased the equipment from.
Please refer to the complete warranty information included with your system.
7.2. Recommended Preventive Maintenance
Ensure that all of the normal operating settings (LAT, LON, HDG, SAT and all of the Tracking Receiver settings) are set correctly. Refer to the Functional Testing section of this manual for instructions to conduct the tests below.
7.2.1. Check ACU Parameters
Assure that the parameters are set correctly (you may wish to record them in the Factory Default
Settings, in section 5 of this manual).
7.2.2. Latitude/Longitude Auto-Update check
Refer to the Latitude & Longitude Update check procedure in the Functional Testing section of this manual.
7.2.3. Heading Following
Refer to the Heading Following verification procedure in the Functional Testing section of this manual.
7.2.4. Azimuth & Elevation Drive
Refer to the Azimuth & Elevation Drive check procedure in the Functional Testing section of this manual.
7.2.5. Test Tracking
Refer to the four quadrant Tracking check procedure in the Functional Testing section of this manual.
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Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
7.2.6. Visual Inspection - Radome & Pedestal
Conduct a good, thorough, visual inspection of the radome and antenna pedestal. Visually inspect the inside surface of the radome top and of the antenna pedestal. Look for water or condensation, rust or corrosion, white fiberglass powder residue, loose wiring connections, loose hardware, loose or broken belts or any other signs of wear or damage.
1. Radome Inspection - The radome top/bottom flanges are properly sealed to prevent wind, saltwater spray and rain from being able to enter the radome. Re-seal any open (“leaky”) areas with marine approved silicone sealant. If heavy condensation, or standing water, is found inside the radome, isolate and seal the source of the leak, and then dry out the radome. Small (1/8 inch) holes may be drilled in the recesses of the base pan of the radome to allow standing water to “weep” out.
1. Antenna Pedestal Inspection - The springs (or rubber vibration dampeners) should not be completely compressed, or otherwise damaged. The plated and painted parts should not be rusted or corroded. The harnesses should not be frayed and all the connectors should be properly fastened and tightened. All hardware should be tight (no loose assemblies or counter-weights). Replace, re-coat, repair and/or tighten as necessary.
7.2.7. Mechanical Checks
Turn the antenna control unit OFF
1. Inspect inside of radome for signs that the dish or feed have been rubbing against the inside of the fiberglass radome.
2. Rotate the pedestal through its full range of azimuth motion. The antenna should rotate freely and easily with light finger pressure.
3. Rotate the pedestal through full range of elevation rotation. The antenna should rotate freely and easily with light finger pressure.
4. Tilt the pedestal through full range of left-right cross-level rotation. The antenna should rotate freely and easily with light finger pressure.
5. Rotate the level cage through the full 90 degrees of rotation from CCW stop to CW stop.
The level cage antenna should rotate freely and easily with light finger pressure. Attached cables should not cause the cage to spring back more that a few degrees from either stop when released.
6. Inspect all drive belts for wear (black dust on/under the area of the belt).
7.2.8. Check Balance
Check the balance of the antenna, re-balance as needed (refer to the Balancing the Antenna procedure below).
7.2.9. Observe Antenna Initialization
Observe the Antenna Initialization as described in the Troubleshooting section below.
7.3. Troubleshooting
Below are theory and diagnostic tests to assist you with troubleshooting the antenna. Refer to the previous section to check settings and do some initial functional testing prior to beginning troubleshooting.
7.3.1. Theory Of Stabilization Operation
The antenna system is mounted on a three axis stabilization assembly that provides free motion with 3 degrees of freedom. This assembly allows the inertia of the antenna system to hold the antenna pointed motionless in inertial space while the ship rolls, pitches and yaws beneath the assembly. Three low friction torque motors attached to each of the three free axes of the assembly provide the required force to overcome the disturbing torque imposed on the antenna system by cable restraints, bearing friction and small air currents within the radome. These motors are also used to re-position the antenna in azimuth and elevation.
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Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
The Pedestal Control Unit (PCU) uses inputs from the level cage sensors to calculate the amount of torque required in each axis to keep the antenna pointed within +/-0.5 degrees. The primary sensor input for each loop is the rate sensor mounted in the Level Cage Assembly. This sensor reports all motion of the antenna to the PCU. The PCU immediately responds by applying a torque in the opposite direction to the disturbance to bring the antenna back to its desired position. Both the instantaneous output of the rate sensor (Velocity Error) and the integrated output of the rate sensor
(Position Error) are used to achieve the high pointing accuracy specification.
The calculated torque commands sent to each of three Brush-Less Servo Amplifiers. These amplifiers provide the proper drive polarities and commutation required to operate the Brush-Less
DC Servo Motors in torque mode. The Torque acting on the mass of the antenna cause it to move, restoring the rate sensors to their original position, and closing the control loop.
Since the rate sensors only monitor motion and not absolute position, a second input is required in each axis as a long term reference to keep the antenna from slowly drifting in position. The Level and Cross Level reference is provided by a two axis tilt sensor in the level cage assembly. The
Azimuth reference is provided by combining the ships gyro compass input and the antenna relative position.
7.3.2. Initialization Sequence
A functional operation check can be made on the antenna stabilization system by observing its behavior during the 4 phases of initialization.
Step 1. Turn on the AC power switch at the ACU front panel. Verify the level platform motor drives the level cage CCW to the stop and then CW 45 degrees.
Step 2. Verify the antenna moves forward or back to bring the top of the level cage to a level position in the for/aft direction. This step takes approximately 10 seconds and will result in the dish being at 45 degrees in elevation. The level cage may still be tilted left or right at this time.
Step 3. After the level cage is positioned in the for/aft direction, verify the antenna moves left or right to bring the top of the level cage to a level position in the left/right direction.
This step takes approximately 10 seconds.
Step 4. After the level cage is positioned in the left/right direction, verify the antenna moves CW (up) in azimuth to the 700.0 degrees, and then down CCW to 630.0 Relative position. From this point on the Encoder will increment and/or decrement the Relative position of the antenna. The antenna will report the PCUs’ Model number & Software version to the DAC-2202 ACU.
If any of theses steps fail, or the DAC-2202 reports model number as "xx04", re-configure the PCU as described in section the Setup section of this manual. If initialization still fails, refer to the troubleshooting information below or the troubleshooting section of the Touch Screen Controller manual.
7.3.3. Troubleshooting using DacRemP
While troubleshooting a Sea Tel 3-Axis Antenna System, you must classify the fault you are dealing with as a failure within one of 3 major system functions, Targeting, Stabilization, and Tracking.
Should there be a failure with any one of these functions, your system will not operate properly. A few simple checks may help determine which fault (if any) that you are dealing with. The matrix below lists some test(s) and which of the DacRemP graph selection would be best to use to identify a fault. The end of this chapter contains examples on how to use DacRemP to diagnose a fault.
Targeting: is the ability to accurately point the antenna to an angular position in free space and is controlled by the ACU. (Does the system drive to the Azimuth, Elevation, and Polarity positions within 1 degree of the desired satellite?)
Stabilization: is the process of de-coupling the ships motion from the antenna and is controlled by the PCU. (Does the system maintain the satellite link after turning off TRACKING?)
Tracking: is the process of issuing fine adjustments to the pointing angle of the antenna to optimize the received signal level and is controlled by the ACU. (Does the system pass a four quadrant-tracking test?)
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Troubleshooting and Maintenance
Functional Test(s)
Four Quadrant Tracking.
Azimuth Encoder Verification.
Sea Trial
Side Lobe Plots
Series 04 Ku-Band TVRO Antenna
DacRemP Graph
Selection to use
ADMC (Position)
ADMC (Position)
ADMC (Position)
ADMC (Position)
System Function(s)
Tracking
Targeting
Targeting
Tracking
Stabilization
Tracking
Determine Blockage Mapping ADMC (Position)
Pedestal Gain Verification
Home switch (flag) verification (Unlimited
Az systems only)
Remote Tilt Verification
Level cage alignment Verification (sensor alignment)
DISPIVC (Loop Error)
DISPV (Ref)
DISPV (Ref)
DISPV (Ref)
Tracking
Stabilization
Stabilization
Stabilization
Targeting
Stabilization
Targeting
Stabilization
AZ Friction Torque Test
DishScan Drive/Phase
DISPTC (Drive)
DishScan XY
Stabilization
Tracking
Stabilization
7.3.4. Antenna Loop Error Monitoring
The DacRemP DISPIVC graph chart provides a means for monitoring the accumulated velocity errors of the antenna for diagnostic purposes. If this error is excessive, it indicates external forces are acting on the antenna. These forces may be the result of but not restricted to static imbalance, excessive bearing friction, cable binding, or wind loading. If these forces cause the antenna to mispoint by more than 0.5° from the desired position the PCU will flag a “Stab Limit” error.
• To view the position error, select the
graph chart.
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Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
• This chart displays sensed axis errors via three traces, CL (Cross Level), LV (Elevation), and
AZ (Azimuth), at a fixed 0.05º/ vertical division.
• The normal trace average will plots it’s display ± 3 divisions from the red reference line.
Any trace line average plotted above this is of concern and troubleshooting required. The example below shows the forces exerted onto the antenna as a resultant of DishScan Drive.
The example below shows the results of various forces put upon antenna.
• Cross-Level Axis physically moved CCW (down to the left.) and then CW (up to the right.)
Elevation Axis physically moved CW. (reflector slightly pushed up) and then physically moved CCW. (reflector slightly pushed down.) At the end of chart recording shows
• DishScan Drive turned Off, notice the lack of accumulated IVC errors.
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Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
7.3.5. Reference Sensor Monitoring
The DacRemP DISPV graph chart provides a means for monitoring the output of the 2 Axis Tilt
Sensor and the Home Switch sensor for diagnostic purposes. The Tilt sensor (located inside the
Level Cage Assembly) is the primary input for the antenna’s reference to the horizon (0° Elevation and 90° Cross-Level). While the Home Switch Sensor (located at the antenna base) is used to calibrate the antenna’s position relative to the vessels BOW.
• To view the reference sensors, select the
graph chart.
• This chart displays the output of the Tilt Sensor via two traces, CL (Cross Level), LV
(Elevation) at a fixed 1º/ vertical division, and the home flag logic level via a single trace, AZ
(Azimuth).
• The normal trace display for the Tilt Sensor, after performing remote tilt calibration, will be
± 4 divisions from the red reference line. Any trace line average plotted above this is of concern and troubleshooting required. See below for a screen capture of an antenna that is
Level in both the Cross-Level and Elevation Axis.
• The Cross Level Tilt display should plot on the red reference line when the level cage is level, referenced to the horizon. It should decrease (plots below red line) when the antenna is tilted to the left and increase (plots above red line) when tilted to the right. See below for a screen capture of an abnormal CL trace Plot, it is an indication that the antenna that is either listed to the right approx. 4 degrees or the PCU requires to much CL tilt bias.
• The Level tilt display should plot on the red reference line when the level cage is level, referenced to the horizon. It should decrease (plots below red line) when the antenna is tilted forward (EL down) and increase (plots above red line) when tilted back (EL up).
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Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
• The Azimuth display for the Home Switch will normally display a logic level high (plots directly on Red reference line after clicking on the button) when the home flag is
NOT engaged and changing to a logic level low when engaged. See below for a screen capture of an antenna that was driven so that the Home Flag switch is engaged.
7.3.6. Open Loop Rate Sensor Monitoring
The DacRemP DISPW graph chart provides a means for monitoring the output of the 3 solid state rate sensors (located inside the Level Cage Assembly) for diagnostic purposes. The rate sensors are the primary inputs to the PCU for stabilization.
• To monitor the rate sensors, select the
graph chart
• This chart displays sensed output from the 3 rate sensors via three traces, CL (Cross Level),
LV (Elevation), and AZ (Azimuth), at a fixed 1º/Second/vertical division.
• A normal trace display will be ± 1 divisions from the red reference line. The example shown below shows an antenna that is NOT currently sensing motion in any axis.
• The Cross Level display should decrease (plots below red line) as the antenna is tilted to the left and increase (plots above red line) as the antenna tilted to the right.
• The Level display should decrease (plots below red line) as the antenna is tilted forward and increase (plots above red line) as the antenna is tilted back.
• The Azimuth display should decrease (plots below red line) as the antenna is rotated CCW and increase (plots above red line) as the antenna is rotated CW. In the example below, the output of the Azimuth rate sensor is plotted above the reference line, indicating that the antenna was driven CW in Azimuth. Due to the in-practicality of driving an axis at a
7-7
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna consistent rate, verification of rate sensor output is, for the most part restricted to a positive or negative response of the Level Cage movement (plotting above or below the red reference line of each axis).
7.3.7. Motor Drive (Torque Command) Monitoring
The DacRemP DISPTC graph chart provides a means for monitoring torque commands required for each motor for diagnostic purposes and verifying antenna balance. By observing each trace, the required drive of the antenna via the motor driver PCB may be established.
• To view the Torque Commands, select the
graph chart.
• This chart displays the Torque Command errors for each axis via three traces, CL (Cross
Level), LV (Elevation), and AZ (Azimuth), at a fixed 0.195amps/vertical division.
• A normal trace display will be ± 1 divisions from the red reference line while under calm sea conditions and with DishScan Drive turned off. See example below
• The Cross Level display will decrease (plots below red line) as the antenna requires drive to the left and increase (plots above red line) as the antenna requires to the right.
Example: The antenna pictured in the screen capture below is imbalanced so that it is
“Right Heavy”. The CL trace is plotting above the red reference line (indicating that drive
7-8
Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
CCW is required to maintain a 90°Cross-Level position).
• The Level display should decrease (plots below red line) as the antenna requires drive forward (Up in elevation) and increase (plots above red line) as the antenna requires drive back (Down in elevation).
• Example: The antenna pictured in the screen capture below is imbalanced so that it is
“Front Heavy”. The LV trace is plotting above the red line (indicating that drive CW is required to maintain the current elevation position).
• The Azimuth display should decrease (plots below red line) as the antenna is driven CCW and increase (plots above red line) as the antenna is rotated CW.
7.3.8. Open Loop Motor Test
The DacRemP Comm Diagnostics Window provides a means to enter in Remote Commands for driving each individual torque motor to test that motors functionality. By driving each axis and observing the resulting motion of the antenna, a coarse operational status of the motor and motor driver may be established.
• To manually drive the motors, select the “Comm
Diagnostics” window under to the Tools submenu or Press “CTRL + C”
• Using the small field in the upper left hand corner of the window, type in the remote command and verify the motor appropriately drives in the direction commanded.
7-9
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
• To drive the Cross Level motor, key in ^1064, ^1128 or ^1192 and press ENTER to drive the Cross Level axis LEFT, OFF or RIGHT respectively.
• To drive the Level motor, key in ^2064, ^2128 or ^2192 and press ENTER to drive the level axis FORWARD, OFF or BACKWARD respectively.
• To drive the Azimuth motor, key in ^3064, ^3128 or ^3192 and press ENTER to drive the azimuth axis CW, OFF or CCW.
7.3.9. To Disable/Enable DishScan
To be able to use Step Track, or to revert to Conscan, as your active tracking mode you will have to disable DishScan.
Select the DISHSCAN parameter window on the ACU:
1. Press the RIGHT arrow, then press the UP arrow and last press the ENTER key to turn
DishScan mode ON.
2. Press the RIGHT arrow, then press the DOWN arrow and last press the ENTER key to turn
DishScan Mode OFF.
If you change this remote parameter, you must save the change using REMOTE PARAMETERS.
If DishScan is OFF and the Step Integral parameter is set to 0000, you will get a constant
ERROR 0016 (DishScan error) and you will see zeros flashing in the lower left of the Azimuth and
Elevation ENTRY menu displays. This is a visual indication that DishScan is turned OFF.
7.3.10. Satellite Reference Mode
The ships gyro compass input to the ACU may be accurate and stable in static conditions and yet may NOT be accurate or stable enough in some underway dynamic conditions. If there is no gyro compass or if the input is corrupt, not stable or not consistently accurate the tracking errors will become large enough to cause the antenna to be mis-pointed off satellite.
Satellite Reference Mode will uncouple the gyro reference from the azimuth rate sensor control loop. When operating in Satellite Reference Mode changes in ships gyro reading will not directly affect the azimuth control loop. The Pedestal Control Unit will stabilize the antenna based entirely on the azimuth rate sensor loop and the tracking information from DishScan. This will keep the azimuth rate sensor position from eventually drifting away at a rate faster than the tracking loop can correct by using the tracking errors to regulate the rate sensor bias.
Satellite Reference Mode can be used as a diagnostic mode to determine if tracking errors are caused by faulty gyro inputs.
Satellite Reference Mode MUST be used when:
• No Gyro Compass is available
• Frequent or constant ACU Error Code 0001 (Gyro Compass has failed)
• Gyro Compass output is NMEA heading
• Flux Gate Compass is being used
• GPS Satellite Compass is being used
To view, or change, the Satellite Reference Mode status, select the SAT REF remote parameter:
1. Press the RIGHT arrow, then press the UP arrow and last press the ENTER key to turn
Satellite Reference Mode ON.
2. Press the RIGHT arrow, then press the DOWN arrow and last press the ENTER key to turn
Satellite Reference Mode OFF.
If you change this remote parameter, you must save the change using REMOTE PARAMETERS.
7.3.11. To Read/Decode an ACU Error Code 0008 (Pedestal Error):
Select the REMOTE COMMAND window on the ACU and;
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Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
1. Using the LEFT/RIGHT and UP/DOWN arrow keys set the Remote Command value to
"" S0000" (the S must be upper case) and press ENTER.
2. Press ENTER key once more to display the REMOTE MONITOR window. SABC@ will be displayed (S followed by 3 letters and a symbol (checksum). The fourth letter ( C above) is the pedestal error letter. Ref is an AZ Reference, encoder or Home Flag error. AZ is
Azimuth, LV is Level (Elevation) and CL is Cross-Level. Decode the letter code using the chart below:
Letter REF AZ LV CL Description of Pedestal Error
@ 0 0 0 0 None
A 0 0 0 1 CL
B 0 0 1 0 LV
D 0 1 0 0 AZ
H 1 0 0 0 Ref
O 1 1 1 1 Ref + AZ + LV + CL
Q 0 0 0 1 Stab CL
R 0 0 1 0 Stab LV
S 0 0 1 1 Stab Limit + CL + LV
T 0 1 0 0 Stab AZ
U
V
0
0
1
1
0
1
1
0
Stab Limit + AZ + CL
Stab Limit + AZ + LV
\
]
^
_
W 0 1 1 1 Stab Limit + AZ + LV + CL
X 1 0 0 0 Stab Ref
Y
Z
[
1
1
1
0
0
0
0
1
1
1
0
1
Stab Limit + Ref + CL
Stab Limit + Ref + LV
Stab Limit + Ref + LV + CL
1
1
1
1
1
1
1
1
0
0
1
1
0
1
0
1
Stab Limit + Ref + AZ
Stab Limit + Ref + AZ + CL
Stab Limit + Ref + AZ + LV
Stab Limit + Ref + AZ + LV + CL
7-11
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
7.3.12. Remote GPS LAT/LON Position:
The above decks equipment has an integrated on board Furuno GPS antenna system. The Latitude and Longitude position information provided are utilized to calculate the Azimuth, Elevation, Crosslevel and Polarity pointing angles of the desired satellite. The DacRemP “ Comm Diagnostics”
Window provides a means to query the GPS antenna to verify proper operation. The procedure below describes this process.
3. Select the “Comm
Diagnostics” window under to the Tools submenu or Press “CTRL
+ C”
2. Left mouse click on the
icon.
3. Left Mouse click on the
“?@ PCU GPS position, 1 min (1 Nm)”
7-12
Series 04 Ku-Band TVRO Antenna
4. In the “Response” window verify proper
GPS position to within 1 nautical mile of your current position.
The Latitude & Longitude position of the GPS will be displayed in the following format:
“@ LAT,N,LON,E,A”
Where LAT and LON are in degrees and minutes, LAT will be followed by N or S (North or
South), LON will be followed by
E or W (East or West), then a status character and finally a checksum character.
Furuno default value is in Japan at 34.4N 135.2E
(@3444,N,13521,E,,_).
After acquiring a good fix at Sea
Tel the string is
@3800,N,12202,W,A^ for our 38N 122W Latitude and
Longitude position.
The status character tells you the status of the GPS.
“,” (Comma) = GPS has NOT acquired a proper fix,
“N” = GPS fix is NOT valid
“A” = GPS has acquired a valid fix.
Troubleshooting and Maintenance
7.4. Maintenance
Below are some procedures for removing/replacing some of the major components on the antenna.
7.4.1. Replacing or Changing LNBs
Series 04 antenna can be easily fitted with a variety of LNB assemblies. The feed is capable of receiving linear or circular polarization signals, however, the LNB must match the desired satellite polarization mode. Below are the instructions to install and align a replacement LNB, or switch to a different LNB. . When a Linear LNB is installed POL OFFSET parameter must be optimized.
NOTE: Linear polarization skew is intentionally REVERSED from actual received satellite polarization by the ½ wave length phase card (refer to basic system information). Therefore, to adjust polarization UP the LNB (as viewed from the back side of the reflector) must rotate CCW and to adjust polarity DOWN the LNB must rotate CW.
7-13
Troubleshooting and Maintenance
1. Open the radome hatch or remove radome top.
2. Target a Satellite Longitude that is the same as the Ships current Longitude. This will cause Auto-Polarization to rotate the current LNB to a vertical position (straight up), and the ACU polarization will be 120.
3. You may need to rotate the antenna to access the back of the dish.
4. Note that with the Cross-Level beam level, the body of the current LNB is vertical (straight up).
5. If you are replacing the LNB with the same style LNB, loosen the Allen set screws on the existing LNB mounting collar
(three set screws, 120 degrees apart) and extract it from the mounting collar. If you are changing the LNB to a different style LNB, loosen the four screws that attach the mounting collar to the driven gear and remove the LNB and mounting collar.
6. Insert the new LNB (same style) into the mounting collar, assure it is seated all the way into the mounting collar tube, rotate the LNB as needed to align the center of the body of the LNB to a vertical position (straight up) and tighten the set screws.
Mount the (different style) new
LNB into the mounting collar.
Assure that the LNB is seated all the way into the mounting collar tube, rotated to align the center of the body of the LNB to a vertical position (straight up) and tighten the setscrews.
Series 04 Ku-Band TVRO Antenna
7-14
Series 04 Ku-Band TVRO Antenna
7. Transfer the coax cables from the old LNB to the new LNB, assure that the correct color coax is attached to the correct port on the LNB as well as the below deck active matrix switch. Below is Sea Tel’s recommended coax color code.
Dual Circular LNB
RHCP (Blue)
LHCP (White)
Dual Linear LNB
Vertical (Blue)
Horizontal (White)
Quad Linear LNB
Horizontal High (Black)
Vertical High (Green)
Horizontal Low (White)
Vertical Low (Blue)
8. Close the radome hatch or reinstall the radome top and tighten radome hardware.
9. Verify that the LNB operating properly and resume normal operation.
Troubleshooting and Maintenance
7.4.2. Replacing the PCU
It is highly recommended that all saved Parameters in the suspected failed Pedestal Control Unit
(P/N 122203) be recorded so they can be duplicated in the replacement PCU. Use either the
DAC2200 or DacRemP to record the following parameter settings; Remote Command responses to
N0999, N1999, N2999, N3999, N7999 commands and the Remote Monitor message of the
Remote command S0000.
Left Side El Pan Cover must be removed to access the (PCU)
Tools Required:
• ½” Nut driver or Wrench
• #2 Phillips Head Screwdriver
• 3/8” Nut driver or Wrench
• 2 mm Flat Blade Screw Driver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-15
Troubleshooting and Maintenance
1. Remove the four 10/32 x 3/8” screws attaching El Pan Cover to PCU Assembly.
Series 04 Ku-Band TVRO Antenna
2. Remove the six 10/32 x 3/8” screws attaching El Pan Cover to El Pan bottom.
3. Remove the El Pan Cover.
4. Remove the BNC cable from the GPS antenna.
5. Loosen the 4-40 retaining screws on each of the Pedestal
Harness D-Sub connectors and unplug all 3 connectors.
7-16
Series 04 Ku-Band TVRO Antenna
6. Being careful not to damage the BNC-HIROSE Pigtail cable, remove the 10/32 Hex nut and
#10 flat washer.
Troubleshooting and Maintenance
7. Remove the remaining two
10/32 Hex nuts and #10 flat washers.
8. Using caution, as antenna will drop hard to the right due the weight imbalance, remove PCU.
9. Replace PCU Assembly and secure to El pan using Loctite
222 and the hardware removed in steps 6 and 7.
10. Re-Connect D-sub connectors and BNC connector removed in steps 4 and 5.
11. Re-install EL P Cover and secure using Loctite 222 and the hardware removed in steps 1 and 2.
12. Check and/or adjust Antenna balance.
13. Configure the new PCU by following the procedure in paragraph 7.5.
14. Place a light weight bubble level on top of the level cage. Check to see if the level cage is level front/back and left/right. If either axis is not level follow the “Tilt Adjustment” procedure below.
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Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
7.4.3. Replacing Level Cage or Level Cage Belt
This procedure to remove and replace Level Cage Assembly (P/N 122208-1) includes step to replace
& tension the level cage belt. If you are only replacing the level cage belt, jump to step 9.
Tools Required:
• ½” Nut driver or Wrench
• #1 Phillips Head Screwdriver
• 2 mm Flat Blade Screwdriver
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Using 2mm flat blade
Screwdriver loosen screws securing D-Sub Connector to
Level Cage Assembly.
2. Using a #1 Phillips Screwdriver, loosen the four 4/40 screws attaching Level Cage Stepper
Motor to El Pan.
3. Slide sprocket assembly towards reflector and remove belt from Level Cage Stepper
Motor sprocket.
7-18
Series 04 Ku-Band TVRO Antenna
4. With the cage rotated to the
CW stop, Observe orientation of the 15 Pin D-sub connector.
5. Using ½” Nut Driver or Wrench, remove jam nut securing Level
Cage Assembly to spindle.
Troubleshooting and Maintenance
6. Do Not remove Level Standoff.
7. Install new level cage onto spindle with the D-sub connector in the same orientation observed in step 5.
Secure with jam nut removed in step 4. Tighten the Jam nut just enough to capture the level cage between the standoff and the Jam nut, then tighten the
Jam nut 1/8 th
turn to slightly pre-load the bearings.
8. Rotate Level Cage assembly by hand and verify exactly 90 degrees range of motion, and that the cage rotates freely and
“Stops” do not rub against body of El Pan.
9. Slip the belt over the body of the level cage assembly.
7-19
Troubleshooting and Maintenance
10. Plug the level cage cable back into the D-Sub connector and tighten retaining screws.
11. Place the belt onto the level cage pulley.
12. Place the belt onto Stepper
Motor sprocket.
Series 04 Ku-Band TVRO Antenna
13. Tension belt by sliding Motor sprocket assembly by hand away from level cage and tighten the four 4/40 screws loosened in step 2 with Loctite
222.
14. Rotate Level Cage by hand to the CCW and CW stop and check belt tension. Tension on belt should just enough to engage drive to level cage.
(approx. 3/16” play when pinched) If belt tension is tighter at the CCW stop than the CW stop or vice versa than readjust for proper tension with the level cage oriented where belt tension was greatest.
15. Check and/or adjust Antenna balance.
7.4.4. To Adjust Tilt:
Select the REMOTE TILT window on the ACU and;
1. Set a bubble (or bulls-eye) level on top of the Level Cage assembly. NOTE: If the level cage is not within 4 degrees of level fore/aft or left/right, replace the Level Cage assembly.
2. If the level cage is within 4 degrees in BOTH For/Aft and Left/Right, use the UP/DOWN arrow keys to adjust LV (fore/aft) until the level cage is level in this axis.
3. Use the LEFT/RIGHT arrow keys to adjust CL (left/right) until the level cage is level in this axis.
4. Once the level cage is level in both axes, wait for 30 seconds then press the ENTER key.
7-20
Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
5. Press ENTER to step the menu to REMOTE PARAMETERS.
6. Press the LEFT arrow key and then press the ENTER key to save the settings in the PCU.
This saves the new tilt bias settings in the PCU. Reset or re-initialize the antenna to verify that the
Level cage is properly level with the new settings.
7.4.5. Replacing Level Cage Stepper Motor
Right Side El Pan Cover must be removed to replace the Level Cage Stepper Motor Assembly.
Tools Required:
• ½” Nut driver or Wrench
• #2 Phillips Head Screwdriver
• 3/8” Nut driver or Wrench
• 2 mm Flat Blade Screw Driver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Using the ½” wrench, remove the 5/16-18 x ½” bolt securing inside EL Pan bottom to Spindle
Plate.
2. Remove the three 10/32 x 3/8” screws attaching El Pan Cover to
POL AUX Relay Assembly.
7-21
Troubleshooting and Maintenance
3. Rotate Level Cage clockwise as required to access this 10/32 x
3/8” screw and remove.
4. Removing the Level cage assembly and or belt is not required.
Series 04 Ku-Band TVRO Antenna
5. Remove the four 10/32 x 3/8” screws attaching El Pan cover to
El Pan bottom.
6. Remove the two 10/32 x ½” screws attaching P-clamps to El
Pan Cover (and El Pan bottom).
7. Using 2mm flat blade screwdriver loosen the retaining screws from the D-sub connector and remove the level cage cable.
8. Carefully pull El Pan Cover away to expose Level Cage Motor
Wiring Harness and disconnect
IDC connector from Motor
Termination PCB.
9. Remove the four screws securing Level Cage Motor assembly to El Pan. Save
Hardware for future use.
7-22
Series 04 Ku-Band TVRO Antenna
10. Install replacement Level Cage
Motor assembly into El Pan with belt around sprocket and loosely secure with hardware removed in step 9.
Troubleshooting and Maintenance
11. Re-Install right El pan and secure using Loctite 222 and all hardware removed in steps 1, 2,
3, 5 and 6.
12. Plug the level cage cable into the
D-sub connector on the Level
Cage Assembly and tighten the retaining screws using 2mm flat blade screwdriver.
13. Tension belt by sliding Motor sprocket assembly by hand away from level cage and tighten the four 4/40 screws with Loctite
222.
7-23
Troubleshooting and Maintenance
14. Rotate Level Cage by hand to the CCW and CW stop and check belt tension. Tension on belt should just enough to engage drive to level cage.
(approx. 3/16” play when pinched). If belt tension is tighter at the CCW stop than the
CW stop or vice versa than repeat step 13 for proper tension with the level cage oriented where greatest belt tension was observed.
15. Check and/or adjust Antenna balance
Series 04 Ku-Band TVRO Antenna
7.4.6. Replacing Azimuth Double Stacked Motor w/ Encoder
Tools Required:
• 7/16” Wrench
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Using snips, cut Tie Wrap holding AZ Motor Harness and
Pedestal Interface Harness together.
2. Using 2mm Flat Blade
Screwdriver, loosen qty two retaining screws on AZ Motor harness and remove from AZ
Post Connector panel.
7-24
Series 04 Ku-Band TVRO Antenna
3. Using a 9/64” Allen Wrench, remove the four Allen head screws (bottom side of motor bracket) securing AZ motor and remove Motor Assembly. Save hardware for future use.
Troubleshooting and Maintenance
4. Insert replacement motor assembly into mounting bracket with cable harness towards AZ
Pulley.
5. Place AZ Belt around Az motor sprocket.
6. Tension belt by pulling motor assembly away from AZ pulley.
Secure motor to bracket using
Loctite 222 and hardware removed in step 1.
7. Re-connect Az Motor Harness to
AZ Post Connector Panel and secure two retaining screws loosened in step 1.
7-25
Troubleshooting and Maintenance
8. Rotate Antenna (by hand) from
CCW stop to CW stop while observing belt. Check to see the belt does not rub against motor mounting hardware and that the belt remains level with pulleys.
**Failure of this step normally indicates improper sprocket placement on the Azimuth
Motor shaft**
Series 04 Ku-Band TVRO Antenna
7.4.7. Replacing Azimuth Belt
Tools Required:
• 7/16” Wrench
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Observe and verify Colored
Coax heat shrink matches silkscreen on AZ Post Connector panel.
2. Using a 7/16” Wrench, remove the four coax connectors.
7-26
Series 04 Ku-Band TVRO Antenna
3. Using a 2mm Flat blade screwdriver loosen retaining screws securing both D-Sub connectors to AZ Post
Connector Panel and remove.
Troubleshooting and Maintenance
4. Using snips, cut the Tie Wrap holding AZ Motor Wire harness and Pedestal Interface Harness together.
5. Using a 9/64” Allen Wrench, loosen the four Allen head screws (bottom side of the motor bracket) securing AZ motor and slide the motor in toward the Azimuth driven sprocket (complete removal of hardware is not required).
7-27
Troubleshooting and Maintenance
6. If not broken, remove the old belt from AZ driven sprocket and AZ motor sprocket.
Series 04 Ku-Band TVRO Antenna
7. Place replacement belt around
Azimuth motor sprocket, with interface harness and RF cables through the center of the belt.
8. Place the belt don onto the teeth of the Azimuth driven sprocket.
9. Tension belt by pulling motor assembly away from Azimuth driven sprocket and secure motor to bracket using Loctite
222 and hardware loosened in step 5.
7-28
Series 04 Ku-Band TVRO Antenna
10. Rotate Antenna from CCW stop to CW stop while observing belt.
Check to see the belt does not rub against motor mounting hardware and that the belt remains level with both sprockets.
Troubleshooting and Maintenance
7.4.8. Replacing Elevation Drive Motor
The following procedure for replacing Elevation belt with the factory installed spare belt on CL beam.
Tools Required:
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Using 2mm Flat Blade
Screwdriver, loosen two retaining screws on EL Motor harness and remove it from AZ post.
7-29
Troubleshooting and Maintenance
2. Using a 5/32” Allen Wrench, remove the four Allen Head screws attaching elevation motor bracket to CL beam and remove motor assembly.
Series 04 Ku-Band TVRO Antenna
3. Observe cable orientation in reference to bracket and then remove Motor from bracket.
4. Using a 9/64” Allen Wrench, remove the four Allen Head screws attaching motor to bracket. Remove save hardware for future use.
5. Install replacement motor, and cable, onto the bracket (with cable in the same orientation observed in step 3) using the hardware removed in step 3. Do not tighten at this time.
6. Re-install bracket onto CL beam using two of the Allen head screws removed in step 2, do not fully tighten.
7. Place belt around elevation driven sprocket and then elevation motor sprocket.
8. Install the other two allen head screws and Secure motor bracket onto CL Beam using
Loctite 222 on all four screws.
7-30
Series 04 Ku-Band TVRO Antenna
9. Reconnect EL Motor harness removed in step 1 and secure with two retaining screws.
10. Rotate reflector from upper physical stop to access the
Elevation motor mounting hardware. Push back on the motor body to tension the elevation belt and tighten the four mounting screws with
Loctite 222.
Troubleshooting and Maintenance
11. Rotate reflector from upper physical stop to lower physical stop and verify that the motor sprocket and the belt do not rub against elevation pan and that the belt runs inline with both sprockets. (Failure of this step is normally due to incorrect sprocket placement on elevation motor assembly).
12. Check and/or adjust antenna balance.
7.4.9. Replacing Elevation Drive Belt
The following procedure for replacing Elevation belt with the factory installed spare belt on CL beam. If the spare belt (on the CL Beam) has already been used you must contact Sea Tel Service
Department for assistance.
Tools Required:
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-31
Troubleshooting and Maintenance
1. Using a 5/32” Allen Wrench, remove the two Allen Head screws which are farthest from the reflector (top and bottom) to enable you to swivel the elevation motor forward Toward the reflector. Loosen the two forward screws.
Series 04 Ku-Band TVRO Antenna
2. Using Snips, cut tie wrap(s) securing spare elevation belt to
CL beam. Use caution as to not cut belt.
3. Install replacement belt around the elevation driven sprocket and elevation motor sprocket.
4. Swivel the elevation motor bracket to CL beam (away from the reflector) and re-install the two screws removed in step 1.
Using Loctite 222 tighten all four screws removed/loosened in step 1.
7-32
Series 04 Ku-Band TVRO Antenna
5. Rotate reflector from upper physical stop to access the
Elevation motor mounting hardware. Push back on the motor body to tension the elevation belt and tighten the four mounting screws with
Loctite 222.
Troubleshooting and Maintenance
6. Rotate reflector from upper physical stop to lower physical stop and verify that the motor sprocket and the belt do not rub against elevation pan and that the belt runs inline with both sprockets. Incorrect belt travel is most frequently caused by incorrect sprocket placement on elevation motor shaft.
7. Check and/or adjust antenna balance.
7.4.10. Replacing CL Drive Motor
Tools Required:
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-33
Troubleshooting and Maintenance
1. Using a 2mm Flat Blade
Screwdriver, loosen two retaining screws on CL Motor harness and remove from AZ post.
Series 04 Ku-Band TVRO Antenna
2. Using a 9/64” Allen Wrench, remove the four Allen Head screws securing Cross Level
Motor to the C/L bracket. Save hardware for future use.
3. Remove CL Motor from bracket.
4. Install replacement Motor
Assembly onto CL Motor Bracket and using the hardware removed in step 2. Tighten the four screws with Loctite 222.
7-34
Series 04 Ku-Band TVRO Antenna
5. Loosen four Allen Head Screws securing CL Motor Bracket to AZ
Post. Complete removal of hardware is not required.
Troubleshooting and Maintenance
6. Install belt around CL Motor
Sprocket.
7. Tension belt by pulling the motor bracket down towards the antenna base and tighten the four screws with Loctite 222.
8. Rotate CL beam from CCW stop to CW stop (Left to right as viewed from behind reflector) and verify CL belt does not rub against AZ Post and runs inline with both sprockets. Incorrect belt travel is most frequently caused by incorrect sprocket placement on elevation motor shaft.
7.4.11. Replacing CL Drive Belt
Tools Required:
• 9/64” Allen Head Wrench
• 5/32” Allen Head Wrench
• Snips / Flush Cutters
• 2 mm Flat Blade Screwdriver
• Loctite 222 or equiv.
7-35
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Loosen four Allen Head Screws securing CL Motor Bracket to AZ
Post. Complete removal of hardware is not required for belt removal.
2. Cut the two Tie Wraps securing old CL belt to Pulley.
3. Remove CL Belt from Pulley and
CL motor sprocket.
4. Install replacement belt around
CL motor sprocket and then around CL pulley.
7-36
Series 04 Ku-Band TVRO Antenna
5. Align belt flush to CL Pulley and secure with two tie wraps (as removed in step 2). Trim the excess off the tie-wraps.
Troubleshooting and Maintenance
6. Tension belt by pulling the motor bracket down towards the antenna base and tighten the four screws with Loctite 222.
7. Rotate CL beam from CCW stop to CW stop (Left to right as viewed from behind reflector) and verify CL belt does not rub against AZ Post and runs inline with both sprockets. Incorrect belt travel is most frequently caused by incorrect sprocket placement on elevation motor shaft.
7.4.12. Replacing the Polang Relay Assembly
Right Side El Pan Cover removal is required to access the Polang Relay Assembly P/N 122202
Tools Required:
• ½” Nut driver or Wrench
• #2 Phillips Head Screwdriver
• 3/8” Nut driver or Wrench
• 2 mm Flat Blade Screw Driver
• Loctite 222 or equiv.
7-37
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
1. Using the ½” wrench, remove the 5/16-18 x ½” bolt securing inside EL Pan bottom to Spindle
Plate.
2. Remove the three 10/32 x 3/8” screws attaching El Pan Cover to the Polang Relay Assembly.
3. Rotate Level Cage clockwise as required to access this 10/32 x
3/8” screw and remove.
4. Removing the Level cage assembly and or belt is not required.
7-38
Series 04 Ku-Band TVRO Antenna
5. Remove the four 10/32 x 3/8” screws attaching El Pan cover to
El Pan bottom.
6. Remove the two 10/32 x ½” screws attaching P-clamps to El
Pan Cover (and El Pan bottom).
7. Using 2mm flat blade screwdriver loosen the retaining screws from the D-sub connector and remove the level cage cable.
8. Carefully pull El Pan Cover away to expose Level Cage Motor
Wiring Harness and disconnect
IDC connector from Motor
Termination PCB.
Troubleshooting and Maintenance
9. Using a 2mm Flat blade
Screwdriver, loosen the 4-40 retaining screws on D-Sub connectors and remove Polang
Relay Harnesses.
7-39
Troubleshooting and Maintenance
10. Using 3/8” Nut Driver, remove the three 10/32 Hex Nuts and
#10 Flat Washers and then remove the Polang Relay
Assembly.
Series 04 Ku-Band TVRO Antenna
11. Replace the Polang Relay
Assembly and secure with
Loctite 222 and the hardware removed in step 10.
12. Re-Install connections removed in steps 9, 8 and 7.
13. Re-Install right El pan and secure using Loctite 222 and hardware removed in steps 1 through 6.
14. Check and/or adjust Antenna balance.
7.4.13. Replacing 24VDC Polang Motor Assembly
Series 04 Polang Motor replacement procedure is as follows.
Tools Required:
• ¼” and 7/16” Open Ended Wrench
• 5/64”, 7/64”, and 5/32” Allen Wrench’s
• Snips/ Cutters
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-40
Series 04 Ku-Band TVRO Antenna
1. Using a ¼” Wrench, remove the four 4-40 Small Pattern Hex
Nuts and Washers. Remove
Vertex Feed Tube and set aside.
Save all Hardware for future use.
Troubleshooting and Maintenance
2. Using the 7/16” Wrench, remove the RF Cables connecting to
LNB.
3. Using snips, cut tie wrap(s) securing harness to LNB if needed.
4. Using the 7/64” Allen Head remove Polang Harness ground
Lug attached to Polang plate.
5. Unplug Polang Harness IDC connection.
6. Using a 5/64” Allen Wrench, loosen the three setscrews in
LNB Mounting Cuff and remove
LNB from feed assembly. (Photo shown without LNB installed for setscrew location clarity).
7. Using snips, cut tie wraps securing harness to Polang
Motor assembly.
7-41
Troubleshooting and Maintenance
8. Using a 7/64” Allen Wrench, remove 3 screws (4 if Polang
Harness Shield was grounded at
Motor Termination PCB).
Series 04 Ku-Band TVRO Antenna
9. Carefully remove Polang
Assembly from reflector. Do
Not Pry off the retaining ring epoxied to reflector. (4004 and
5004 dishes are as shown, 3004 systems do not have an epoxy ring installed).
10. From the back side of feed assembly, Use a 5/32” Allen
Wrench to remove the screws securing 24V Polang Motor to bracket assembly. Save all hardware for future use
11. Remove Polang Motor and set aside.
7-42
Series 04 Ku-Band TVRO Antenna
12. Install replacement Polang
Motor, using Loctite 222 and the hardware removed in the step 9, with body of motor mounted flush on standoffs.
Troubleshooting and Maintenance
13. View Polang Assembly from bottom and verify that the
Polang Motor sprocket is fully engaged with Polang gear.
14. Reconnect POL Motor 2 Pin IDC connector.
7-43
Troubleshooting and Maintenance
15. Reconnect POL Pot IDC connector.
16. Secure both POL Pot and Polang
Motor harness to body of Pol
Motor using tie wraps.
Series 04 Ku-Band TVRO Antenna
17. Install feed assembly back onto reflector and secure with Loctite
222 and hardware removed in step 8.
18. Install the replacement Vertex
Feed Tube with the phase card oriented in the horizontal axis
(ref. to reflector).
19. Secure with the Loctite 222 and hardware removed in step 1.
7-44
Series 04 Ku-Band TVRO Antenna
20. Re-Install LNB and secure with setscrews loosened in step 5.
21. Reconnect RF cables removed in step 2.
22. Secure RF Cable Harness with a tie wrap around body of LNB and with enough service loop to allow full range of LNB travel.
23. Secure POL Harness ground lug to feed Plate with hardware removed in step 4.
24. Reconnect POL Harness to
Motor Termination PCB removed in step 5.
Troubleshooting and Maintenance
25. Rotate reflector by hand from upper elevation stop to lower elevation stop and verify LNB and/or Feed harnesses do not hit
CL beam.
26. Check and Adjust antenna balance.
27. If system is configured with
Linear LNB follow instructions for adjusting POL Pot. For systems configured with a
Circular LNB no further adjustments are needed.
7.4.14. Replacing Polang Potentiometer Assembly
Tools Required:
• 1/2” Open Ended Wrench
• 3/32” Allen Wrench
• Snips/ Cutters
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-45
Troubleshooting and Maintenance
1. Using snips, cut tie wrap securing Pol Pot wires to Polang motor assembly.
Series 04 Ku-Band TVRO Antenna
2. Disconnect Pol Pot IDC connector from motor termination PCB.
3. Using a 3/32” Allen Wrench remove the two screws attaching Pol Pot bracket to feed bracket. Remove Pol Pot assembly. Save all hardware for future use.
4. Using a 3/32” Allen Wrench remove setscrew securing sprocket to Potentiometer and remove sprocket.
5. Using a ½” wrench remove nut and lock washer securing Pol Pot to bracket. Save all hardware for future use.
7-46
Series 04 Ku-Band TVRO Antenna
6. Install replacement Pol Pot onto bracket and with wires exiting away from slot in bracket, secure with hardware removed in step
5.
7. Install Pol Pot sprocket onto the new Potentiometer using setscrew removed in step 4.
Troubleshooting and Maintenance
8. Install Pol Pot assembly back onto Feed assembly using hardware removed in step 3. Do not engage onto gear at this time.
9. Follow the below Pol Pot alignment procedure for setting
Pol Pot to its center of range.
7-47
Troubleshooting and Maintenance
Step 1: In the ACU setup menu, go to
Pol Type parameter and set to Polang to manual Mode:
7. Get into the ‘SETUP’ mode by pressing and holding the two
LEFT & RIGHT arrows until the ‘EL TRIM’ window appears.
10. Briefly release and then push and release both
LEFT & RIGHT arrow keys again. The ‘SAVE NEW
PARAMETERS’ window should now be displayed.
11. Push the ‘ UP’ arrow key until the until the ‘Pol Type’ parameter is displayed.
Series 04 Ku-Band TVRO Antenna
12. Use the LEFT &
RIGHT arrow keys to select appropriate digits then use the
‘ UP & DOWN’ arrow keys to change value. For Manual
Polarization Mode set Pol Type to 9. (To put antenna into Auto
Polarization Mode set to Pol
Type to 72)
Step 2: Press ‘ ENTER’ key to go to Pol Offset window and verify setting is
0030. (If necessary use arrow keys to select appropriate digits and change accordingly).
Step 3: Press ‘ ENTER’ key to go to Tx Pol parameter and ensure 2 is entered. (If necessary use arrow keys to select appropriate digits and change accordingly).
7-48
Series 04 Ku-Band TVRO Antenna
Step 4: Press
Antenna Window.
‘ NEXT’ key to select
Step 5: Press ‘ ENTER’ key until
‘Pol xxxx’ is displayed.
(Steps 7-12 requires assistance to observe and operate antenna
simultaneously)
Step 7: Enter radome and observe physical alignment of LNB. For the xx04 series, the LNB should be aligned in a
Vertical orientation, If not continue on to step 8, else skip ahead to step 9.
Troubleshooting and Maintenance
Step 8: Using the DAC2200 ACU drive the feed assembly to vertical.
8. Press the ‘RIGHT’ arrow key to display cursor to the right of the displayed Pol Value
13. Using the ‘UP & DOWN’ arrow keys to increment & decrement Pol Value, drive the
LNB to achieve a vertical orientation of the LNB as described in Step 7.
Step 9: Verify Pol Pot sprocket is out of alignment with the main driven gear.
Step 10: On the ACU, push
‘ ENTER’ key so that the cursor is not within the Pol display (failure to do this will result in display not changing).
Rotate the pot manually until a count of
120 is achieved.
7-49
Troubleshooting and Maintenance
Step 11: Reengage Pol Pot gear with the driven gear, while trying to maintain the
120 Pol Value set in step 10 and tighten the mounting plate screw loosened in step 9. (A Pol Value Variance of ± 3 counts is acceptable while trying to reengage the gears)
Series 04 Ku-Band TVRO Antenna
Step 12: Drive Polang to upper and lower electrical limits and verify drive direction
& full range of motion of feed assembly.
9. On the ACU ‘ RIGHT’ arrow key to display cursor underneath
Pol Value
14. Press the ‘ UP’ key to drive feed fully CW and verify Pol value of 210.
15. Press the ‘ DOWN’ key to drive feed fully CCW and verify
Pol Value of 29.
7-50
Series 04 Ku-Band TVRO Antenna
Step 13: In the ACU setup menu, go to
Pol Type parameter and set antenna back to Auto Pol Mode:
10. Briefly release and then push and release both
LEFT & RIGHT arrow keys again. The ‘SAVE NEW
PARAMETERS’ window should now be displayed.
16. Push the ‘ UP’ arrow key a few times until the until the ‘Pol
Type’ parameter is displayed.
Troubleshooting and Maintenance
17. Use the LEFT &
RIGHT arrow keys to display a cursor under appropriate Pol value digits then use the ‘ UP
& DOWN’ arrow keys to change value. Then Press
‘ ENTER’ key. For Auto
Polarization Mode set to Pol
Type to 72. (To put antenna into Manual Polarization Mode set Pol Type to 9)
7.4.15. Removing & Replacing the Feed Tube
Series 04 Vertex Feed Tube replacement procedure
Tools Required:
• ¼” Open Ended Wrench
• 5/64”, 7/64”, and 5/32” Allen Head Wrench
• Snips/ Cutters
• Loctite 222 or equiv.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with Loctite 222 or its equivalent.
7-51
Troubleshooting and Maintenance
1. Using a ¼” Wrench remove the four 4-40 Small Pattern Hex
Nuts and Washers. Remove
Vertex Feed Tube and set aside.
Save all Hardware for future use.
Series 04 Ku-Band TVRO Antenna
2. Before installing replacement
Vertex Feed Tube it is necessary to observe orientation of the inner ½ wavelength phase card.
*Orientation can also be observed from outside of feed tube by the 4 (2 each side) protruding white plastic phase card mounting points.
3. Install the replacement Vertex
Feed Tube with the phase card oriented in the horizontal axis
(ref. to reflector).
4. Secure with the Loctite 222 and hardware removed in step 1.
5. Check and/or adjust antenna balance
7.4.16. Balancing the Antenna
The antenna and equipment frame is balanced at the factory however, after disassembly for shipping or maintenance, balance adjustment may be necessary. Balancing must be done with the power supply turned off. No belt removal is required to balance the antenna pedestal. Balancing is accomplished by adding or removing balance trim weights at strategic locations to keep the antenna from falling forward/back or side to side. The antenna system is not pendulous so
'balanced' is defined as the antenna remaining at rest when left in any position. The antenna should be balanced within one or two ounces at the typical trim weight location of 2 feet from the axis of rotation.
7-52
Series 04 Ku-Band TVRO Antenna Troubleshooting and Maintenance
The recommend balancing order is Elevation Axis with the antenna pointed at the horizon (referred to as front to back balance). Elevation Axis with the antenna pointed at zenith (referred to as top to bottom balance). Then Cross Level axis at any elevation position (referred to as side to side balance). The balance about azimuth axis is accomplished by accurately positioning the cross level beam in the azimuth stabilization assembly. This adjustment is done at the factory using special alignment tools. Do NOT attempt to adjust the cross level beam position in the field without the proper test fixtures.
7.5. Pedestal Control Unit Configuration – 6004
The PCU is designed to be used with a variety of antenna pedestal models. So, the PCU must be configured correctly for the model number of the antenna it is mounted on. The configuration information that is unique to each pedestal model is stored in a Non Volatile Random Access Memory (NVRAM) in the PCU enclosure. If the PCU is replaced or the NVRAM in the PCU should become corrupt, the PCU must be reconfigured to operate with the pedestal it is installed on. The default configuration for the PCU is model
xx04. In this configuration the Level Cage will drive normally but the PCU will not drive any of the three
torque motors to prevent damage to the unknown pedestal.
7.5.1. To configure the PCU;
1. Select the REMOTE COMMAND window on the ACU.
2. Refer to the table below to key in the appropriate value for you model antenna to enter in the next step. EXAMPLE: For a 6004 Model Antenna, select system type 0073.
3. Using the LEFT/RIGHT and UP/DOWN arrow keys set the Remote Command value to
" N0073" and press ENTER. The display should now show "N0073".
4. Press ENTER several times to select REMOTE PARAMETERS. Press LEFT arrow and then
ENTER to save the system type in the PCU.
5. Press RESET and the displayed Remote Version Number should now display "6004 VER
2.nn".
7.5.2. Model Configuration Numbers
The following table shows the current mode configuration values for Series 06 pedestals.
MODEL Configuration Number xx03a
6003A or 6004
N 0000 Turns off all drive motors
N 0073
7-53
Troubleshooting and Maintenance Series 04 Ku-Band TVRO Antenna
7.6. Antenna Stowing Procedure
WARNING: Antenna Pedestal must be properly restrained (stowed) to
prevent damage to wire rope isolators, isolator springs and/or antenna pedestal mechanism during underway conditions
when power is removed from the antenna assembly.
The normal operating condition for the Sea Tel Antenna system is to remain powered up at all times. This ensures that the antenna remains actively stabilized to prevent physical damage to the antenna pedestal and reduce condensation and moisture in the radome to prevent corrosion. If, for some reason, the antenna must be powered down during underway transits, it should be secured with nylon straps regardless of sea conditions to prevent damage to the antenna system. Refer to the procedure below to secure the antenna pedestal.
Equipment & Hardware needed:
• Two (2) Nylon web straps with buckle or ratchet mechanism. Nylon straps should be rated to
300 lbs. Max rated capacity.
Stowing procedure:
1. Point the antenna to Zenith, (90 degree elevation angle), straight up.
2. Install one strap through the hole in one side elevation beam, down under the upper base plate, through the other elevation beam hole. Cinch or ratchet the web strap to just restrain the antenna.
3. Install another web strap, or a large tiewrap, around the azimuth tongue counter-weights and down under one corner of the upper base plate to restrain azimuth rotation of the antenna.
CAUTION: Tighten the straps ONLY tight enough to restrain the antenna. When restrained the antenna will only be able to move about an inch in any direction. DO
NOT OVER-TIGHTEN.
NOTE: Remove the straps, and/or Tiewraps, before applying power and returning the antenna to normal operating condition.
7-54
Series 04 Ku-Band TVRO Antenna Specifications
8. Specifications
The specifications of your Series 04 antenna system are below.
8.1. Installed Weight
General Assembly:
Radome Assembly (dry*):
Total Weight (dry):
3004 4004 5004
100 lbs. (45.4 kg)
75 lbs. (34.0 kg)
175 lbs. (79.4 kg)
101 lbs. (45.8 kg)
90 lbs. (40.8 kg)
191 lbs. (86.6 kg)
*NOTE: Radome panels can absorb up to 50% moisture by weight.
115 lbs. (52.2 kg)
95 lbs. (43.1 kg)
210 lbs. (95.3 kg)
8.2. Antenna Reflector/Feed Assembly
Diameter:
Antenna Gain @ 12 GHz
Minimum EIRP
3004 4004 5004
30 inch (76.2 cm) 40 inch (101.6 cm) 50 inch (127 cm)
39 dB typical 41 dB typical 43 dB typical
45 dB 43 dB 41 dB
Type
Feed
Polarization
Hydro-formed Aluminum reflector
Cassegrain feed with ring focus splash plate
Linear or Circular, with ½ wave phase card*
Polarization control Remotely skewed adjustment using 24 volt DC motor, with potentiometer feedback for Linear and Circular feeds (Auto-
Polarization mode is default).
*NOTE: Linear polarization skew is intentionally REVERSED from actual received satellite polarization by the ½ wave length phase card (refer to basic system information).
8.3. Radome Assembly
Size:
Diameter:
3004 4004 5004
40 inch (101.6 cm) 51.75 inches (131.3 cm) 61 inch (155 cm)
Height:
Type/Material:
Wind:
48.9 inch (124.2 cm) MAX 59 inches (149.9 cm) MAX 66 inch (167.6 cm) MAX
Rigid fiberglass dome
Withstand relative average winds up to 100 MPH from any direction.
1.5 dB at 12 GHz Radome RF attenuation (dry *):
*NOTE: Radome panels can absorb up to 50% moisture by weight. Soaked panels will also have higher attenuation.
8-1
Specifications Series 04 Ku-Band TVRO Antenna
8.4. Stabilized Pedestal Assembly
Stabilization:
Positioning:
AZ Drive motor:
Three axis: Train, Cross-level, and Level
Two Axis (Azimuth, Elevation)
Double stacked size 23 Brushless DC Motor w/Encoder
EL/CL Drive motors:
Angular motion range:
Elevation:
Azimuth:
Cross-Level:
Stabilization Accuracy
Size 23 Brushless DC Motors
-15 to +120 degrees
+/- 345 degrees (015 to 705)
Up to +/- 30 degrees
0.2 degree PEAK error under maximum ship's motion condition
Elevation Pointing
Relative Azimuth Pointing:
00.0 (horizon) to 90.0 (zenith)
020.0 to 700.0 (Unwrap should occur at 023.0 or 697.0)
Specified Ship Motions (for stabilization accuracy tests):
Roll:
Pitch:
Yaw:
Turning rate:
+/-15 degrees at 8-12 sec periods
+/-10 degrees at 6-12 sec periods
+/-8 degrees at 15 to 20 sec periods
Up to 12 deg/sec and 15 deg/sec/sec
Headway:
Mounting height:
Up to 50 knots
Up to 150 feet.
Heave 0.5G
Surge 0.2G
Sway 0.2G
Maximum ship motion:
Roll:
Pitch:
Yaw:
Tangential Acceleration:
Surge/Sway/Heave:
Turning rate:
Headway:
+/- 25 degrees w/6 sec periods
+/- 15 degrees w/6 sec periods
+/- 8 degrees w/6 sec periods
+/- 0.5 g
+/- 0.2 g
12 deg/sec @ 5 deg/sec/sec
Up to 30 knots
8.5. Pedestal Control Unit (PCU) Assembly
The PCU Assembly contains 2 Printed Circuit Boards (PCBs). One is the main control board and the other is the Motor Driver for the 3 Brushless DC Drive motors (AZ/EL/CL).
Connectors
Antenna Pedestal
Motor Interface
M&C Interface
44 Pin D-Sub connector
25 Pin D-Sub connector
15 Pin D-Sub connector
GPS Input BNC connector
Controls None
M&C Interface 9600 Baud RS-422
8-2
Series 04 Ku-Band TVRO Antenna Specifications
8.6. Interchangeable LNB Options
The Series 04 antenna can be easily fitted with a variety of LNB assemblies. The feed is capable of receiving linear or circular polarization however the LNB must match the satellite programming type desired. Below are the LNBs which may be used with this system.
8.6.1. US Circular LNB
LNB Manufacturer:
RF Frequencies:
IF Frequency:
LO Frequency:
Noise Figure:
Polarization modes:
Polarization control:
8.6.2. DLA Circular LNB
Wistron Neweb, but may vary
12.2 - 12.7 GHz
950 - 1450 MHz
11.250 GHz
1.1 dB max.
LHCP or RHCP circular
18VDC (LHCP) or 13VDC (RHCP) voltage switched
LNB Manufacturer:
RF Frequencies:
IF Frequency:
LO Frequency:
Noise Figure:
Polarization modes:
Polarization control:
Eagle Aspen, but may vary
11.45 - 12.2 GHz
950 - 1700 MHz
10.5 GHz
1.1 dB max.
LHCP or RHCP circular
18VDC (LHCP) or 13VDC (RHCP) voltage switched
8.6.3. European Quad Universal Linear LNB
LNB Manufacturer:
RF Frequencies:
IF Frequencies:
LO Frequencies:
Noise Figure:
Polarization modes:
Band Selection:
Brainwave, but may vary
Low Band High Band
10.7 - 11.7 GHz 11.7 - 12.75 GHz
950 - 1950 MHz 1100 - 2150 MHz
9.75 GHz 10.6 GHz
0.7 dB typical
2 Horiz., 2 Vert. Outputs
2 Hi, 2 Lo band outputs
8-3
Specifications
8.7. Environmental Conditions
Temperature:
Humidity:
Spray:
Icing:
Rain:
Wind:
Vibration:
Frequency Range, Hz
4 - 10
10 - 15
15 - 25
25 - 33
Corrosion
Series 04 Ku-Band TVRO Antenna
-30 degrees C to 55 degrees C.
Up to l00% @ 40 degrees C, Non-condensing.
Resistant to water penetration sprayed from any direction.
Survive ice loads of 4.5 pounds per square foot. Degraded RF performance will occur under icing conditions.
Up to 4 inches per hour. Degraded RF performance may occur when the radome surface is wet.
Withstand relative average winds up to 100 MPH from any direction.
Withstand externally imposed vibrations in all 3 axes, having displacement amplitudes as follows:
Peak Single Amplitude
0.100 inches (0.1G to 1.0G)
0.030 inches (0.3G to 0.7G)
0.016 inches (0.4G to 1.0G)
0.009 inches (0.6G to 1.0G)
Parts are corrosion resistant or are treated to endure effects of salt air and salt spray. The equipment is specifically designed and manufactured for marine use.
8.8. Control and IF Coax Cables
8.8.1. Antenna Control Cable (Provided from ACU-MUX)
RS-422 Pedestal Interface
Type Shielded Twisted Pairs
Number of wires
Wire Gauge 24 AWG or larger
Communications Parameters: 9600 Baud, 8 bits, No parity
Interface Protocol:
Interface Connector:
RS-422
DE-9P
8.8.2. Antenna L-Band TVRO IF Coax Cables (Customer Furnished)
2, 4 or 6 cables are required dependant upon which feed/LNB configuration your antenna is fitted with.
Due to the dB losses across the length of the RF coaxes at L-Band, Sea Tel recommends the following 75 ohm coax cable types (and their equivalent conductor size) for our standard pedestal installations:
Run Length Coax Type Conductor Size up to 75 ft LMR-300-75 up to 150 ft up to 200 ft
RG-11 or LMR-400-75
LDF4-75 Heliax
Up to 300 ft LMR-600-75
18 AWG
14 AWG
10 AWG
6 AWG
For runs longer that 300 feet, Sea Tel recommends Single-mode Fiber Optic Cables with Fiber Optic converters.
8-4
Series 04 Ku-Band TVRO Antenna Specifications
8.8.3. Multi-conductor Cables (Customer Furnished)
Due to the voltage losses across the multi-conductor cables, Sea Tel recommends the following wire gauge for the AC & DC multi-conductor cables used in our standard pedestal installations:
Run Length Conductor Size up to 50 ft up to 100 ft up to 150 ft up to 250 ft
Up to 350 ft
20 AWG (0.8 mm)
18 AWG (1.0 mm)
16 AWG (1.3 mm)
14 AWG (1.6 mm)
12 AWG (2.0 mm)
8.8.4. Fiber Optic Transmitter (CFE Optional)
Model: Ortel Model 3112A
Frequency Range: 950-2050 MHz
Noise Figure: 45 dB
Connectors:
Fiber FC/APC "Tight Fit"
8.8.5. Gyro Compass Interface Cable (Customer Furnished)
4 Conductors for Step-By-Step Gyro, 5 Conductors for
Synchro see Multi-conductor Cables spec above
Number of wires
Wire Gauge:
8-5
Specifications Series 04 Ku-Band TVRO Antenna
This Page Intentionally Left Blank
8-6
Series 04 Ku-Band TVRO Antenna Drawings
9. Drawings
This section contains all the drawings that apply to your Sea Tel Model 5004 Antenna. Spare parts kits are included as a quick reference to the most common part numbers you might need. The drawings are organized into two groups:
9.1. Series 04 Model Specific Drawings
Drawing Title
Radome Installation Arrangement
9.2. Series 04 General Drawings
Drawing Title
Series 04 Standard Spare Parts Kit
Series 04 Premium Spare Parts Kit
Series 04 Master Spare Parts Kit
Schematic, Antenna RF System xx04
9-1
Drawings Series 04 Ku-Band TVRO Antenna
This Page Intentionally Left Blank
9-2
FIND QTY
15
16
17
18
11
12
13
14
7
8
5
6
9
9
10
3
4
1
2
23
24
25
26
27
19
20
21
22
28
PART NO
EA
121988
EA
122201
EA
121989-2
EA
122203
EA
121966-2
EA
122937-1
EA
122202
EA
122237
EA
115075-1
EA
EA
115075-2
122363-1
EA
116676
EA
125411-1
EA
119061
EA
119732
EA
122073
EA
121485-2
EA
122223-1
EA
122224
EA
122225
EA
122370
EA
122372
EA
113480
EA
111115-3
EA
111115-6
EA
122505-15
EA
112587-3
EA
114178
EA
115492-1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
4
4
5
1
1
4
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR
A2
O
C1
F
D1
A
F
C1
C
F1
A3
A1
G1
G1
D
A2
D1
E2
D
A3
A1
C1
A2
B
B
GENERAL ASS'Y, 4004
POLANG ASS'Y
PEDESTAL ASS'Y, 4004
PCU ENCLOSURE ASS'Y, XX04
GPS ANTENNA, RETERMINATED, 21.0 L
LEVEL CAGE ASS'Y, BOTTOM EXIT, 90 DE
POLANG RELAY ASS'Y
VERTEX FEED, 40 IN., 4004
LNB MOD, DUAL, US
LNB MOD, DUAL DLA
MODEM ASS'Y, 70 KHz, ADE
TERMINAL MOUNTING STRIP ASS'Y, ACU
DAC-2202, ASS'Y, DVB RCVR, COAX IF
TONE GENERATOR ASS'Y, RACK
MULTI-SWITCH, 4/8/12 OUTPUT, (REF. US SEE DASH #
(OBS, USE DASH #) TOUCH SCREEN KIT
HARNESS ASS'Y, REFLECTOR
HARNESS ASS'Y, PEDESTAL, REFERENC
HARNESS ASS'Y, INTERFACE, DBS04
HARNESS ASS'Y, PEDESTAL, 3BLDC, DBS
HARNESS ASS'Y, BASE SPINDLE, DBS04
CABLE ASS'Y, RG179, COLOR CODED, (R SEE DASH #.
CABLE ASS'Y, RF, RG6/RG11/CDF40, (REF.
SEE DASH #.
CABLE ASS'Y, F(M)-F(M), 3 FT.
CABLE ASS'Y, F(M)-F(M), 6 FT.
CABLE ASS'Y, DE-9, 15 FEET
CABLE ASS'Y, BNC-RCA, 15 FEET
ADAPTER, F(F)-F(F) (BULLET), 1.0 IN L
SEE DASH #.
ADAPTER, N(F)-SMA(F), W/FLANGE
PROD FAMILY
LIT
SYSTEM BLOCK DIAGRAM, 4004
EFF. DATE
18-Jun-07
SHT 1 OF 2
DRAWING NUMBER
121987
REV
D
FIND QTY
29
30
31
PART NO
1
1
1
EA
122027
EA
120808
EA
125594-1
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION
A
C
A1
PANEL, CONNECTOR, LOWER
BRACKET, CONNECTOR
RADOME ASS'Y ,XX04 GA INSTALL, 50 IN,
REFERENCE DESIGNATOR
PROD FAMILY
LIT
SYSTEM BLOCK DIAGRAM, 4004
EFF. DATE
18-Jun-07
SHT 2 OF 2
DRAWING NUMBER
121987
REV
D
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
5
6
7
3
4
1
2
1
EA
121989-1
1
EA
122234
1
EA
122911
8
EA
114593-164
8
EA
114580-011
1
EA
121655-2
1
IN
122447-13
E2
E
A1
C1
A
PEDESTAL ASS'Y, 3004
ANTENNA ASS'Y, 3004
WEIGHT CONFIGURATION, 3004
SCREW, SOCKET HD, 10-32 x 1/2, S.S.
WASHER, FLAT, #10, S.S.
LABELS INSTALLATION, XX04
STRIP, NYLON WEAR
PROD FAMILY
SERIES 04
GENERAL ASS'Y, 3004
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
122220
REV
A2
B
A
C
8 7 6
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
APPLY ADHESIVE PER SEATEL SPEC 121730.
2
FOR PROPER SPOOLING OF INTERFACE HARNESS, INSTALL SERVICE
LOOP, ATTACH CONECTORS AND SET PEDESTAL TO CENTER OF
AZIMUTH RANGE. THEN LOOSEN P-CLIP, REMOVE ALL TWISTING FROM
HARNESS AND RETIGHTEN P-CLIP.
3 BALANCE WEIGHTS SHOWN TYPICAL. ADJUST TRIMWEIGHTS AND
HARDWARE AS NECESSARY.
7
5
8
3 3
2
7 6
4 3 2
REV ECO# DATE
A 4499 7-14-04
REVISION HISTORY
DESCRIPTION
RELEASED TO PRODUCTION. REV. WAS X2.
A1
A2
N/A
5200
07-29-05 ADDED ITEM 7. ITEM 4 WAS P/N 114593-162.
6-2-06 ISOLATION WS SORBOTHANE
2
1
BY
V.S.
V.S.
RJW
D
5
4 5
1
2
CABLE SERVICE
LOOP AS SHOWN
C
6
LOOP CABLE
TIE 4 1
2
3 3
B
4
TOLERANCES
UNLESS OTHERWISE SPECIFIED
X.X = .050
X.XX = .020
X.XXX = .005
ANGLES: .5
INTERPRET TOLERANCING PER ASME Y14.5M - 1994
MATERIAL:
N/A
DRAWN BY:
P. McCANN
DRAWN DATE:
10-08-03
APPROVED BY:
APPROVED DATE:
FINISH:
N/A
3rd ANGLE
PROJECTION
3
SIZE
B
SCALE:
1:10
FIRST USED:
3004
2
Sea Tel
4030 NELSON AVENUE
CONCORD, CA 94520
Tel. 925-798-7979 Fax. 925-798-7986
TITLE:
GENERAL ASSEMBLY,
3004
DRAWING NUMBER
122220
SHEET NUMBER
REV
1 OF 1
A2
1
A
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
5
6
7
3
4
1
2
1
EA
121989-2
1
EA
121990
1
EA
122865
8
EA
114593-164
8
EA
114580-011
1
EA
121655-2
2
IN
122447-13
E2
B3
A
C1
A
PEDESTAL ASS'Y, 4004
ANTENNA ASS'Y, 4004
WEIGHT CONFIGURATION, 4004
SCREW, SOCKET HD, 10-32 x 1/2, S.S.
WASHER, FLAT, #10, S.S.
LABELS INSTALLATION, XX04
STRIP, NYLON WEAR
GENERAL ASS'Y, 4004
PROD FAMILY
SERIES 04
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
121988
REV
A2
D
8 7 6
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
APPLY ADHESIVE PER SEATEL SPEC 121730.
2
3
FOR PROPER SPOOLING OF INTERFACE HARNESS, INSTALL SERVICE
LOOP, ATTACH CONECTORS AND SET PEDESTAL TO CENTER OF
AZIMUTH RANGE. THEN LOOSEN P-CLIP, REMOVE ALL TWISTING FROM
HARNESS AND RETIGHTEN P-CLIP.
BALANCE WEIGHTS SHOWN TYPICAL. ADJUST TRIMWEIGHTS AND
HARDWARE AS NECESSARY.
C
7
5
1
2
CABLE SERVICE
LOOP AS SHOWN
B
5
2
A
8 7 6 5
2
4 3 2
REV ECO# DATE
A 4499 12-09-03
REVISION HISTORY
DESCRIPTION
RELEASED TO PRODUCTION. REV WS X2.
A1
A2
N/A
5200
07-29-05 ADDED ITEM 7. ITEM 4 WS P/N 114593-162.
6-1-06 ISOLATION WS. SORBOTHANE
1
BY
V.S.
V.S.
RJW
D
6
LOOP CABLE
TIE 4±1 2
3 3
C
4
TOLERANCES
UNLESS OTHERWISE SPECIFIED
X.X = .050
X.XX = .020
X.XXX = .005
ANGLES: .5
INTERPRET TOLERANCING PER ASME Y14.5M - 1994
MATERIAL:
N/A
DRAWN BY:
P. McCANN
DRAWN DATE:
10-08-03
APPROVED BY:
APPROVED DATE:
FINISH:
N/A
3rd ANGLE
PROJECTION
3
SIZE
B
SCALE:
1:10
FIRST USED:
4004
2
Sea Tel
4030 NELSON AVENUE
CONCORD, CA 94520
Tel. 925-798-7979 Fax. 925-798-7986
TITLE:
GENERAL ASSEMBLY,
4004
DRAWING NUMBER
121988
SHEET NUMBER
REV
1 OF 1
A2
1
A
B
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
5
6
7
3
4
1
2
1
EA
121989-3
1
EA
122235
1
EA
122890
8
EA
114593-164
8
EA
114580-011
1
EA
121655-2
2
IN
122447-13
E2
E1
A
C1
A
PEDESTAL ASS'Y, 5004
ANTENNA ASS'Y, 5004
WEIGHT CONFIGURATION, 5004
SCREW, SOCKET HD, 10-32 x 1/2, S.S.
WASHER, FLAT, #10, S.S.
LABELS INSTALLATION, XX04
STRIP, NYLON WEAR
GENERAL ASS'Y, 5004
PROD FAMILY
SERIES 04
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
122221
REV
A2
D
8 7 6
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
APPLY ADHESIVE PER SEATEL SPEC 121730.
2
FOR PROPER SPOOLING OF INTERFACE HARNESS, INSTALL SERVICE
LOOP, ATTACH CONECTORS AND SET PEDESTAL TO CENTER OF
AZIMUTH RANGE. THEN LOOSEN P-CLIP, REMOVE ALL TWISTING FROM
HARNESS AND RETIGHTEN P-CLIP.
3 BALANCE WEIGHTS SHOWN TYPICAL. ADJUST TRIMWEIGHTS AND
HARDWARE AS NECESSARY.
3 3
C
7
5
B
A
8
2
7 6
4 3 2
REV ECO# DATE
A 4499 07-14-04
REVISION HISTORY
DESCRIPTION
RELEASED TO PRODUCTION. REW WAS X2.
A1
A2
N/A
5200
07-29-05 ADDED ITEM 7. ITEM 4 WAS P/N 114593-162.
6-3-06 ISOLATION WS SORBOTHANE
2
1
BY
V.S.
V.S.
RJW
D
C
6
1
2
CABLE SERVICE
LOOP AS SHOWN
LOOP CABLE
TIE 4 1
2
B
5
4 5
4
3 3
TOLERANCES
UNLESS OTHERWISE SPECIFIED
X.X = .050
X.XX = .020
X.XXX = .005
ANGLES: .5
INTERPRET TOLERANCING PER ASME Y14.5M - 1994
MATERIAL:
N/A
DRAWN BY:
P. McCANN
DRAWN DATE:
10-08-03
APPROVED BY:
APPROVED DATE:
FINISH:
N/A
3rd ANGLE
PROJECTION
3
SIZE
B
SCALE:
1:10
FIRST USED:
5004
2
Sea Tel
4030 NELSON AVENUE
CONCORD, CA 94520
Tel. 925-798-7979 Fax. 925-798-7986
TITLE:
GENERAL ASSEMBLY,
5004
DRAWING NUMBER
122221
SHEET NUMBER
REV
1 OF 1
A2
1
A
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
5
50
51
52
3
4
1
2
53
55
56
57
1
EA
122180
1
EA
122201
2
EA
122181-1
2
EA
122181-2
1
EA
124829-1
8
EA
114588-830
16
EA
122076-333
16
EA
109270
8
EA
114583-011
4
EA
114590-110
4
EA
114583-005
4
EA
114580-005
B1
D1
B
B
O
A
REFLECTOR MACHINING, 30 IN. RX ONLY
POLANG ASS'Y
CLIP, 30 IN. REFLECTOR, RX ONLY
CLIP, 30 IN. REFLECTOR, RX ONLY
VERTEX FEED, 30 IN DBS
SCREW, PAN HD, PHIL, 10-32 x 5/8, S.S.
WASHER, FLAT, #10, 18-8 SS, (.5 OD x 7/32
WASHER, ISO DAMP
NUT, HEX, 10-32, S.S.
SCREW, SOCKET SET-CUP, 4-40 x 1/2, S.S.
NUT, HEX, 4-40, S.S.
WASHER, FLAT, #4, S.S.
ANTENNA ASS'Y, 3004
PROD FAMILY
COMMON
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
122234
REV
E
D
8 7 6
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
APPLY ADHESIVE PER SEATEL SPEC 121730.
2 APPLY GREEN LOCTITE (680) W/ PRIMER & ALLOW
TO CURE PRIOR TO INSTALLING ITEM 5.
4X STUD SHALL NOT PROTRUDE
BEYOND THIS SURFACE
2
5
C
SECTION A-A
SCALE 2 : 1
B
4
REV
C1
D
E
3 2 1
ECO# DATE
N/A
5135
11-3-05
3-6-06
REVISION HISTORY
DESCRIPTION
NOTE 2 WS "APPLY LOCTITE RED PER SEATEL SPEC 121730 & ALLOW TO CURE PRIOR TO INSTALLING
ITEM 6". FIXED NOTE2.
DELETED ITEMS 54 & 58 FROM BOM
ITEM 55 WS 114592-409. EDIT SECTION LINE.
5212 6-8-06
BY
SL
RJW
SL
D
1
51 50
C
5
A
A
A
8 7
2
6 5 4
PLACE VERTEX FEED TUBE
WITH PHASE CARD IN
ORIENTATION SHOWN.
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
X.X = .050
X.XX = .020
X.XXX = .005
ANGLES: .5
INTERPRET TOLERANCING PER ASME Y14.5M - 1994
MATERIAL:
DRAWN BY:
P. McCZNN
DRAWN DATE:
3-1-04
APPROVED BY:
APPROVED DATE:
FINISH:
3rd ANGLE
PROJECTION
3
SIZE
B
FIRST USED:
SCALE:
1:6
3004
2
Sea Tel
4030 NELSON AVENUE
CONCORD, CA 94520
Tel. 925-798-7979 Fax. 925-798-7986
TITLE:
ANTENNA ASS'Y,
3004
DRAWING NUMBER
122234
SHEET NUMBER
1 OF 1
REV
E
1
A
B
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
57
58
59
52
53
55
56
50
51
5
6
3
4
1
2
1
EA
122092
1
EA
122237
1
EA
122201
2
EA
122034-1
2
EA
122034-2
1
EA
122365
8
EA
114588-830
16
EA
122076-333
16
EA
109270
8
EA
114583-011
4
EA
114592-868
4
EA
114583-005
4
EA
114580-005
4
EA
114593-121
4
EA
114580-007
C
A1
D1
B
C
A
O
A
REFLECTOR MACHINING, 40 IN
VERTEX FEED, 40 IN., 4004
POLANG ASS'Y
CLIP, 40 IN. REFLECTOR
CLIP, 40 IN. REFLECTOR
EPOXY PLATE
SCREW, PAN HD, PHIL, 10-32 x 5/8, S.S.
WASHER, FLAT, #10, 18-8 SS, (.5 OD x 7/32
WASHER, ISO DAMP
NUT, HEX, 10-32, S.S.
STUD, FULLY THREADED, 4-40 x 1 IN, S.S.
NUT, HEX, 4-40, S.S.
WASHER, FLAT, #4, S.S.
SCREW, SOCKET HD, 6-32 x 5/16, S.S.
WASHER, FLAT, #6, S.S.
ANTENNA ASS'Y, 4004
PROD FAMILY
COMMON
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
121990
REV
B3
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
2
3
APPLY ADHESIVE PER SEATEL SPEC 121730.
APPLY EPOXY PER ASSEMBLY INSTRUCTIONS.
APPLY GREEN LOCTITE (680) W/ PRIMER & ALLOW TO
CURE PRIOR TO INSTALLING ITEM 2.
REV.
X2
A
B
B1
B2
B3
ECO#
N/A
N/A
4551
N/A
5135
5337
DATE
12-4-03
3-4-04
08-30-04
10-27-05
3-6-06
10/19/06
DESCRIPTION
CONVERTED DRAWING FROM ORTHO TO ISO, ADDED HARDWARE, ADDED ITEM 6
RELEASED TO PRODUCTION, CHANGED DRAWING VIEWS, REARRANGED HARDWARE ITEM NUMBERS: 55 WAS 50 & -867, DELETED 51, 58 WAS 52, 59 WAS 53, 50 WAS 54, 51 WAS 55, 52 WAS 56, 53 WAS 57,
ADDED 56 & 57
ITEM 51:122076-333 WS 114580-012
NOTE 2 WS "APPLY LOCTITE RED PER SEATEL SPEC 121730 & ALLOW TO CURE PRIOR TO INSTALLING ITEM 2."
ROTATED EXPLODED AND DETAIL VIEWS, DETAIL VIEWS ARE NOW "DETAIL B" AND "DETAIL C".
CHANGED ITEM 59 SPECIFICATION TO 114580-007 ON BOM, WS 114580-008.
50 51
4X 59
55 REF
BY
P.M.
P.M.
SCC
SL
RJW
KRB
A
DETAIL B
SCALE 1 : 4
6 2
2
4X 58
1
A
DOCUMENT NO. 117084 REV. C
B
C
51
DETAIL C
SCALE 1 : 4
4X STUD SHALL
NOT PROTRUDE
BEYOND THIS
SURFACE OF
ITEM 3
3
SECTION A-A
SCALE 1 : 1
TOLERANCES
UNLESS OTHERWISE SPECIFIED
X.X
X.XX
X.XXX
ANGLES
3rd ANGLE
PROJECTION
SCALE:
DATE:
TITLE:
MODEL:
4004
1:8
12-4-03
APPROVED BY: DRAWN BY:
P. McCANN
DRAWING SIZE:
B
ANTENNA ASSEMBLY, 4004
SHEET:
1 OF 1
DRAWING NUMBER
121990
REVISION
B3
DRAWING CREATED IN SOLIDWORKS
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
53
55
56
57
59
60
50
51
5
7
3
4
1
2
1
EA
122169
1
EA
122201
2
EA
122171-1
2
EA
122171-2
1
EA
125780
1
EA
122365
8
EA
114588-829
16
EA
122076-333
8
EA
114583-011
4
EA
114592-360
4
EA
114583-005
4
EA
114580-005
4
EA
114593-121
4
EA
114580-007
B
D1
A
A
X1
A
A
A2
REFLECTOR MACHINING, 50 IN
POLANG ASS'Y
CLIP, 50 IN. REFLECTOR
CLIP, 50 IN. REFLECTOR
VERTEX FEED, KU RX ONLY, 49", 5004
EPOXY PLATE
SCREW, PAN HD, PHIL, 10-32 x 1/2, S.S.
WASHER, FLAT, #10, 18-8 SS, (.5 OD x 7/32
NUT, HEX, 10-32, S.S.
STUD, FULLY THREADED, 4-40 x 1-1/4, S.S.
NUT, HEX, 4-40, S.S.
WASHER, FLAT, #4, S.S.
SCREW, SOCKET HD, 6-32 x 5/16, S.S.
WASHER, FLAT, #6, S.S.
ANTENNA ASS'Y, 5004
PROD FAMILY
COMMON
EFF. DATE
29-Jun-07
SHT 1 OF 1
DRAWING NUMBER
122235
REV
E1
NOTES: (UNLESS OTHERWISE SPECIFIED)
1.
APPLY ADHESIVE PER SEATEL SPEC 121730.
2 APPLY EPOXY PER ASSEMBLY INSTRUCTIONS.
3
APPLY GREEN LOCTITE (680) W/ PRIMER & ALLOW TO
CURE PRIOR TO INSTALLING ITEM 6.
REV.
B
B1
C
D
E
E1
7 2
2
ECO#
4551
N/A
5141
5261
5285
5340
DATE
08-18-04
10-27-05
2-28-06
7-31-06
9-26-06
10-19-06
DESCRIPTION
ITEM 51: 122076-333 WS 114580-012
NOTE 2 WS " APPLY LOCTITE RED PER SEATEL SPEC 121730 & ALLOW TO CURE PRIOR TO INSTALLING ITEM 6."
DELETED ISO DAMP WASHERS; ITEM 50 WS 114588-830
INCREASED WIDTH OF FEED ADAPTER HD PER PRINT; ITEM 55 WS 114592-409
VERTEX FEED REPLACED: ITEM 5 WS 122358; ITEM 6 DELT'D; ITEMS 54 & 58 DELETED
SWITCHED NOTES 2 & 3 INDICATORS, REMOVED BUBBLES 6 & 31, CHANGED QTY'S FOR ITEMS 3 & 4 TO 2 EA. WS. 4 EACH
1
59
A
SCALE: 1:6
5
A
DOCUMENT NO. 117084 REV. C
4X 57
3
SECTION A-A
SCALE 2 : 1
4X STUD SHALL NOT PROTRUDE
BEYOND THIS SURFACE OF ITEM 2
2
REF
TOLERANCES
UNLESS OTHERWISE SPECIFIED
X.X
X.XX
X.XXX
ANGLES
3rd ANGLE
PROJECTION
SCALE:
DATE:
TITLE:
MODEL:
5004
1:8
3-3-04
50 8X
APPROVED BY: DRAWN BY:
P. McCANN
DRAWING SIZE:
B
ANTENNA ASSEMBLY, 5004
SHEET:
1 OF 1
DRAWING NUMBER
122235
REVISION
E1
DRAWING CREATED IN SOLIDWORKS
BY
SCC
SL
RJW
RJW
RJW
KRB
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
55
56
57
58
60
61
51
52
53
54
10
11
14
50
3
4
1
2
1
1
EA
EA
122348-2
124197-1
3
EA
124903-1
1
EA
118576
10
EA
119801-012 5
6 1
EA
111679-7
7 4
EA
114178
8 0.1
OZ
116702
2
EA
110481-4
1
EA
109783-2
1
EA
123549
2
EA
114588-148
12
EA
114580-007
6
1
EA
EA
114583-007
114588-196
2
EA
114580-009
1
EA
114583-009
12
EA
114586-540
24
EA
123665-416
12
EA
119906-029
4
4
EA
EA
114588-150
121226-3012
B
0
O
A
X2
B
A2
D
D3
RADOME TOP, 40 IN, W/ LIP, FOAM, WHITE
RADOME BASE FAB ASS'Y, 40 IN, W/ LIP,
STRAIN RELIEF ASS'Y
MOUNTING KIT, PEDESTAL
CABLE TIE, NYLON, 4 INCH
CABLE CLAMP, NYLON, 1/2 DIA, #8 MTG H
ADAPTER, F(F)-F(F) (BULLET), 1.0 IN L
ADHESIVE/SEALANT, E6000
DECAL, LOGO, SEA TEL, 16 X 6 IN
WRENCH, L
HARDWARE KIT, RADOME 34-40-50-60 IN NOT SHOWN
SCREW, PAN HD, PHIL, 6-32 x 1/2, S.S.
WASHER, FLAT, #6, S.S.
NUT, HEX, 6-32, S.S.
SCREW, PAN HD, PHIL, 8-32 x 5/8, S.S.
WASHER, FLAT, #8, S.S.
NUT, HEX, 8-32, S.S.
SCREW, HEX HD, 1/4-20 x 1-1/4, S.S.
WASHER, BONDED SEALING, 1/4, .275 IDX
NUT, NYLON INSERT, 1/4-20
SCREW, PAN HD, PHIL, 6-32 x 5/8, S.S.
SPACER, #6 X .25 OD X .125, ALUM, ALODI
RADOME ASS'Y, XX04 GA INSTALL, 40 IN, WHITE
PROD FAMILY
COMMON
EFF. DATE
02-Jul-07
SHT 1 OF 1
DRAWING NUMBER
122968-1
REV
F1
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
55
56
57
58
60
61
51
52
53
54
10
11
14
50
3
4
1
2
1
1
EA
EA
122874-2
123126
3
EA
124903-1
1
EA
118576
10
EA
119801-012 5
6 1
EA
111679-7
7 4
EA
114178
8 0.1
OZ
116702
2
EA
110481-3
1
EA
109783-2
1
EA
123549
2
EA
114588-148
12
EA
114580-007
6
1
EA
EA
114583-007
114588-196
2
EA
114580-009
1
EA
114583-009
16
EA
114586-540
32
EA
123665-416
16
EA
119906-029
4
4
EA
EA
114588-151
121226-3012
B
0
O
B6
B4
B
A2
D
D3
RADOME TOP, 60 IN W/ LIP, ZERO DRAFT,
RADOME BASE FAB ASS'Y, 60 IN, W/ LIP,
STRAIN RELIEF ASS'Y
MOUNTING KIT, PEDESTAL
CABLE TIE, NYLON, 4 INCH
CABLE CLAMP, NYLON, 1/2 DIA, #8 MTG H
ADAPTER, F(F)-F(F) (BULLET), 1.0 IN L
ADHESIVE/SEALANT, E6000
DECAL, LOGO, SEA TEL, 25.8 X 8 IN
WRENCH, L
HARDWARE KIT, RADOME 34-40-50-60 IN
SCREW, PAN HD, PHIL, 6-32 x 1/2, S.S.
WASHER, FLAT, #6, S.S.
NUT, HEX, 6-32, S.S.
SCREW, PAN HD, PHIL, 8-32 x 5/8, S.S.
WASHER, FLAT, #8, S.S.
NUT, HEX, 8-32, S.S.
SCREW, HEX HD, 1/4-20 x 1-1/4, S.S.
WASHER, BONDED SEALING, 1/4, .275 IDX
NUT, NYLON INSERT, 1/4-20
SCREW, PAN HD, PHIL, 6-32 x 3/4, S.S.
SPACER, #6 X .25 OD X .125, ALUM, ALODI
RADOME ASS'Y, XX04 GA INSTALL, 60 IN, WHITE
PROD FAMILY
COMMON
EFF. DATE
02-Jul-07
SHT 1 OF 1
DRAWING NUMBER
122969-1
REV
E
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
55
56
57
58
60
61
51
52
53
54
10
11
14
50
3
4
1
2
1
1
EA
EA
122351-2
122784
3
EA
124903-1
1
EA
118576
10
EA
119801-012 5
6 1
EA
111679-7
7 4
EA
114178
8 0.1
OZ
116702
2
EA
110481-3
1
EA
109783-2
1
EA
123549
2
EA
114588-148
12
EA
114580-007
6
1
EA
EA
114583-007
114588-196
2
EA
114580-009
1
EA
114583-009
12
EA
114586-540
24
EA
123665-416
12
EA
119906-029
4
4
EA
EA
114588-150
121226-3012
B
0
O
C1
C
B
A2
D
D3
RADOME TOP, 48 IN, W/ LIP, FOAM, WHITE
RADOME BASE FAB ASS'Y, 48 IN, W/ LIP,W
STRAIN RELIEF ASS'Y
MOUNTING KIT, PEDESTAL
CABLE TIE, NYLON, 4 INCH
CABLE CLAMP, NYLON, 1/2 DIA, #8 MTG H
ADAPTER, F(F)-F(F) (BULLET), 1.0 IN L
ADHESIVE/SEALANT, E6000
DECAL, LOGO, SEA TEL, 25.8 X 8 IN
WRENCH, L
HARDWARE KIT, RADOME 34-40-50-60 IN
SCREW, PAN HD, PHIL, 6-32 x 1/2, S.S.
WASHER, FLAT, #6, S.S.
NUT, HEX, 6-32, S.S.
SCREW, PAN HD, PHIL, 8-32 x 5/8, S.S.
WASHER, FLAT, #8, S.S.
NUT, HEX, 8-32, S.S.
SCREW, HEX HD, 1/4-20 x 1-1/4, S.S.
WASHER, BONDED SEALING, 1/4, .275 IDX
NUT, NYLON INSERT, 1/4-20
SCREW, PAN HD, PHIL, 6-32 x 5/8, S.S.
SPACER, #6 X .25 OD X .125, ALUM, ALODI
RADOME ASS'Y, XX04 GA INSTALL, 48 IN, WHITE/FOAM
PROD FAMILY
COMMON
EFF. DATE
02-Jul-07
SHT 1 OF 1
DRAWING NUMBER
122970-1
REV
F1
FIND QTY
7
8
1
4
PART NO
1
1
1
1
EA
EA
EA
EA
124112-3
124110-2
122363-1
122203
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION
C
D
A
A
REFERENCE DESIGNATOR
KIT, AZ MOTOR, XX04 (AZ)
KIT, CROSS LEVEL/ELEVATION MOTOR, X (EL & CL)
MODEM ASS'Y, 70 KHz, ADE
PCU ENCLOSURE ASS'Y (FLASH PROGRAMMABLE)
PROD FAMILY
COMMON
SPARE PARTS KIT, XX04, STANDARD
EFF. DATE
06-Jul-06
SHT 1 OF 1
DRAWING NUMBER
123550-1
REV
B
FIND QTY
7
8
5
6
9
10
13
16
2
4
1
1
PART NO
1
1
1
1
1
1
1
1
1
1
1
1
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
114789-810
123550-1
120586
122338-2
113747
120090-18
122654
120090-20
122937-1
124115-2
124109-2
124108-2
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR
C
D2
A
A
A
B
C
D3
G2
TRANSPORT CONTAINER
SPARE PARTS KIT, XX04, STANDARD
TAC-92C DVB RECEIVER ASS'Y
PCB ASS'Y, FSK MODEM, BDE, 120KHz
PCB ASS'Y, AUX SERIAL PORT
MICRO ASS'Y, NMEAH SERIAL
PCB ASS'Y, CONSCAN WITH REMOTE SU
MICRO ASS'Y, CONSCAN SERIAL
LEVEL CAGE ASS'Y, BOTTOM EXIT, 90 DE
KIT, LEVEL CAGE MOTOR, XX04
KIT, POLANG POT, XX04
KIT, POLANG MOTOR, XX04 (PRIME FOCUS)
PROD FAMILY
COMMON
SPARE PARTS KIT, XX04, PREMIUM
EFF. DATE
06-Jul-06
SHT 1 OF 1
DRAWING NUMBER
123551-1
REV
C
PART NO
SINGLE LEVEL MFG BILL OF MATERIAL
REV DESCRIPTION REFERENCE DESIGNATOR FIND QTY
7
9
5
6
10
3
4
1
2
1
EA
123551-1
1
EA
122332
1
EA
119828
1
EA
119668-7
1
EA
112646-13
1
EA
114836
1
EA
120090-17
1
EA
116281
1
EA
121966-2
D
B1
D
A4
A1
A
E1
C
SPARE PARTS KIT, XX04, PREMIUM
PCB ASS'Y, ACU W/ DVB, DAC-2200
PCB ASS'Y, GP32 ADAPTER
POWER SUPPLY, SWITCHING 24V, 3.4A
PCB ASS'Y, DC-DC CONVERTER
PCB ASS'Y, S/D CONVERTER, 12 BIT
MICRO ASS'Y, 12-BIT SDC
PCB ASS'Y, SHIELDED POL. AUX. RELAY
GPS ANTENNA, RETERMINATED, 21.0 L
SPARE PARTS KIT, XX04, MASTER
PROD FAMILY
COMMON
EFF. DATE
02-Jul-07
SHT 1 OF 1
DRAWING NUMBER
123552-1
REV
A
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