To Next PageTo Next PageWhat to do if the ACU display is blank on my COBHAM Sea Tel 6011-4?
If the ACU display is blank, first ensure that the front panel power switch is turned ON. Next, verify the AC line voltage on the power cord. Then, check the cables on the rear panel of the ACU to ensure they are correctly connected. If the AC line voltage is okay, disconnect and check the components one by one.
General| Frequency Band | C-Band, Ku-Band |
|---|---|
| Stabilization | 3-axis |
| Type | Stabilized Antenna |
| Antenna Diameter | 1.5 meters |
| Tracking | Automatic |
| Reflector Size | 1.5 m |
| Polarization | Linear |
| Tracking Accuracy | 0.2 degrees RMS |
| Frequency Range | 10.7 - 12.75 GHz |
| Diameter | 1.0 meter |
| Mount Type | Pedestal |
| Antenna Type | Parabolic |
| Compatibility | Compatible with most VSAT systems |
Guidelines for user access, inspection, and maintenance by authorized personnel.
Emphasizes the need for a second person during service and adjustments.
Precautions for grounding, cable routing, and shielding to prevent hazards.
Specifies AC power connection requirements for the ADE.
Warning against operating equipment in the presence of flammable gases or fumes.
Instructions on handling live circuits and avoiding electrical hazards.
Discusses AC power and coaxial cables, referring to other chapters for details.
Mentions multi-conductor cables from Gyro Compass and computer.
Provides a high-level overview of the system components and their interconnections.
Criteria for choosing the best location for mounting the antenna and BDE on a ship.
Discusses how obstructions and interference can affect signal quality and antenna placement.
Details requirements for the pedestal, its sizing, and its connection to the ship.
Explains the impact of mounting height on tangential acceleration and antenna performance.
Discusses recommendations for mounting on ship masts and different mast types.
Covers requirements for providing safe access to the Above Decks Equipment for servicing.
Discusses proper placement and rack mounting for below-decks equipment.
General guidance on cable routing, protection, and installation practices.
Details grounding procedures for the ADE and its mounting to the ship's hull.
Instructions for carefully unpacking and inspecting the equipment for damage.
General notes on assembly, thread-locking, and torque values for fasteners.
Step-by-step guide for installing the Above Decks Equipment, including radome access.
Procedures for grounding the antenna pedestal to the ship's hull for electrical safety.
Critical step to remove shipping restraints before energizing the antenna.
General guidelines for shipboard cable installation, avoiding damage and ensuring routing.
Instructions for installing the ACU, Terminal Mounting Strip, and other BDE components.
Guides the connection of BDE components as per the system block diagram.
Performs visual and electrical inspections to ensure correct connections.
Procedures for powering up the ACU and antenna system after installation.
Covers routine maintenance procedures for the antenna system.
Setting ship information and satellite details for system operation.
Accessing and navigating system setup parameters, with cautions on changes.
Lists factory default parameters for the ACU and PCU, noting optimization needs.
Procedure for saving changed parameters into NVRAM for permanent storage.
Detailed steps for optimizing the C-Band reflector's targeting and settings.
Detailed steps for optimizing the Ku-Band reflector's targeting and settings.
Selecting the correct GYRO TYPE parameter for the ship's gyro compass interface.
Manual procedure for updating the GYRO TYPE parameter and saving changes.
Recommendations for operation without a gyro compass, including alternative solutions.
Calculating and entering the IF tracking frequency for satellite signal acquisition.
Setting the KHz rate for the tracking frequency in the ACU.
Setting the Forward Error Correction rate, specifically for L-Band SCPC Receivers.
Discusses the use of the 22 KHz tone for band selection in TVRO applications.
Selecting receiver voltage for proper port selection based on satellite polarization.
Optimizing polarization for linear feeds and setting Skew to 0000 for circular feeds.
Setting the Network ID (NID) parameter, typically to 0000.
How to set band selection for C-Band (REFL A) and Ku-Band (REFL B) reflectors.
Procedure for optimizing targeting for both C-Band and Ku-Band reflectors.
Automatic calculation and setting of Azimuth/Elevation trim offsets for antenna calibration.
Manual procedure for optimizing targeting by recording calculated and peak positions.
Adjusting the Elevation trim offset to correct alignment errors or imbalances.
Adjusting the Azimuth trim offset to compensate for installation alignment errors.
Procedure to electronically calibrate the antenna's relative azimuth position using HFO.
Method for mechanically calibrating the relative antenna position using the home flag sensor.
Overview of the ACU's search pattern initiation and termination criteria.
Explains how to modify various search pattern parameters.
Saving modified search parameters into NVRAM.
Programming relative azimuth sectors (zones) for blockage or RF hazard areas.
Saving programmed blockage zones and RF hazard parameters into NVRAM.
How to access and navigate the system setup menus, with cautions.
Setting the CCW 5v Polang servo position reference.
Setting the 5V Polang servo motion scale factor.
Parameter for issuing diagnostic commands to the PCU.
Parameter used to monitor diagnostic command results.
Procedure to disable or enable DishScan for specific tests or diagnostics.
Managing satellite reference mode to improve tracking accuracy with gyro or without.
Saving changed remote parameters to NVRAM.
Instructions for installing stow restraints to secure the antenna during ship movement.
Instructions to remove shipping restraints before powering up.
Procedure for targeting and acquiring a C-Band satellite.
Steps to switch tracking from one C-Band satellite to another.
Steps to switch tracking from a C-Band to a Ku-Band satellite.
Steps to switch tracking between Ku-Band satellites.
Initial check of the ACU and antenna system after power-up and reset.
Verifying that the integrated GPS is updating positional information correctly.
Checking if the ACU's heading display accurately follows the ship's gyro compass.
Testing the blockage output function by simulating a blocked condition.
Testing the antenna's tracking accuracy across all four quadrants of signal level.
Details the Sea Tel Limited Warranty coverage for parts and labor.
Common problems encountered with the ACU and initial steps to resolve them.
Addresses issues where the heading display doesn't follow movement or reports errors.
How to select or reverse polarity for C-Band LNBs using the polarity select knob.
Instructions for installing and aligning replacement Ku-Band LNBs.
Procedure to optimize linear polarization based on received signal level using SKEW.
Minimum requirements for using the Bluetooth device feature.
Steps to install the Bluetooth hardware for the Above Decks Equipment.
Steps to install the Bluetooth hardware for the Below Decks Equipment.
Instructions for using diagnostic modes, noting when to refer to other sections.
Steps to remove the Bluetooth hardware from the ADE.
Steps to remove the Bluetooth hardware from the BDE.
Updating PCU or DAC software using the Bluetooth connection.
Steps to return to normal operation after Bluetooth setup or removal.
Technical specifications for the stabilized antenna pedestal, including motors and sensors.
Configuration details for the QOR Dual Reflector system, including C-Band and Ku-Band assemblies.
Details various interchangeable LNB options available for the system.
Specifications and connectors for the MK 2 Pedestal Control Unit.
Specifications and connectors for the MK 2 Motor Driver Enclosure.
Specifications for the 400 MHz modems used in the system.
Specifications for the 76” radome assembly, including size, material, and wind resistance.
Power requirements for the ADE pedestal, including AC input and consumption.
Environmental operating conditions, including climatic and transit specifications.
Lists below-decks equipment like ACU, TMS, Satellite Receiver, and Multiswitch.
Details specifications for antenna control and IF coax cables.
Lists specific drawings related to the 6011-4 model for diagnostic reference.
Defines the purpose of the procedure for installing strain reliefs in smooth base radomes.
Outlines the applicability of the procedure to various radome sizes and mounting patterns.
Lists necessary tools and materials for performing the radome strain relief installation.
States the installer's responsibility to observe safety precautions during the procedure.
The main procedural steps for installing radome strain reliefs, starting with removing the cable pass-through.
Planning and making the necessary holes for strain reliefs, with spacing guidelines.
Detailed steps for measuring, marking, and drilling pilot holes for strain reliefs.
Using a hole saw from the outside to create holes, with precautions to avoid damage.
Cleaning the edges of drilled holes with a file.
Testing the fit of strain reliefs and making adjustments.
Sealing cut edges with fiberglass resin to preserve radome strength.
Reference to the strain relief assembly drawing for installation.
Rotating the General Assembly to ensure proper cable routing and no interference.
Positioning guidelines for strain reliefs on smooth based radomes.
Positioning guidelines for strain reliefs on 76-inch radomes.
