Why is my Simrad Boating Equipment going off course?
If your Simrad Boating Equipment shows 'Off Course', it means the boat's heading is outside the set 20-degree limit due to extreme weather or slow speed. First, check the steering parameters like Rudder, Autotrim, and Seastate filter. If needed, increase the Rudder value. Increase boat speed if possible; otherwise, steer manually.
What to do if Simrad Boating Equipment shows 'Nav data missing'?
If your Simrad Boating Equipment displays 'Nav data missing', it indicates missing or invalid NAV data. To resolve this, check the Nav. Receiver/GPS setup.
How to fix 'Compass data missing' on Simrad Boating Equipment?
If your Simrad Boating Equipment shows 'Compass data missing', it means there is no data from the selected compass. If multiple compasses are connected, go to the Setup/Sources menu and select a different compass. If no compass is available, perform a source update. Check the connections, and if necessary, replace the compass, being careful not to cut the cables.
General| Type | Autopilot System |
|---|---|
| Display | LCD |
| Water Resistance | IPX6 |
| NMEA 0183 | Yes |
| NMEA 2000 | Yes |
| Interface | NMEA 0183, NMEA 2000 |
| Compatibility | Simrad Autopilot Systems |
| Operating Temperature | -15°C to +55°C |
Introduces the Simrad AP28 autopilot system and its features for leisure boats.
Details the main components of the AP28 autopilot system, including control unit, computer, and sensors.
Describes the compact control unit with LCD display, tactile keys, and SimNet connectors for system interconnection.
Explains the autopilot computer as the central unit for steering and drive electronics, available in AC12 and AC42 models.
Details the RF25 and optional RF300 rudder feedback units for measuring rudder angle.
Covers RC42 Rate Compass and optional FC40 Fluxgate Compass for heading data.
Displays the software version and release date of the autopilot system.
Identifies the main controls and display elements on the AP28 autopilot front panel.
Explains the function of each key on the AP28 control unit for navigation and mode selection.
Details the various softkey symbols and their corresponding actions for alternate functions.
Describes the procedure for powering the AP28 system on and off using the PWR key.
Explains how to adjust the display's brightness and contrast using the PWR and Up/Down keys.
Details the Standby mode for manual steering and its display information.
Explains how the AUTO mode maintains a set course using compass data for steering.
Describes how to capture and maintain a heading, useful for precise course changes.
Covers navigating around obstacles and adjusting steering parameters for optimal boat control.
Explains how steering parameters (HI/LO) are selected based on boat speed and wind conditions.
Details how to fine-tune steering parameters for desired rudder activity and boat response.
Explains how to adjust wind response settings for optimal performance in sailing mode.
Describes automatic and manual selection methods for HI/LO steering parameters.
Introduces various pattern steering features like U-Turn, C-turn, etc., for specific maneuvers.
Explains the U-Turn for 180-degree course changes and C-Turn for continuous circling.
Describes the spiral-turn feature for turning in a widening or narrowing radius.
Details the zigzag-turn feature for making a series of course changes.
Explains the square-turn feature for creating rectangular or 90-degree turn patterns.
Describes the lazy S-turn feature for gradual course changes with adjustable radius.
Explains how to steer the boat to follow a specific depth contour using echo sounder input.
Covers setting the main course and adjusting depth gain for accurate depth tracking.
Details the CCA parameter for controlling S-turns across depth contours.
Explains how to set and change the reference depth for DCT operation.
Describes the tack function available in AUTO mode for sailboats.
Explains the NoDrift mode for position-based steering, requiring GPS/Chart plotter input.
Covers using the AP28 for navigation to waypoints or routes via GPS/Chart plotter data.
Explains the NAV mode display, bearing to waypoint, and cross track error (XTE).
Advises on adjusting the arrival circle for smooth turns onto the next navigation leg.
Details the WIND mode for sailboats, using wind transducer data for steering.
Explains tacking procedures and parameters specific to WIND mode for sailboats.
Covers gybing maneuvers and functions to prevent unwanted tacks or gybes.
Describes the WINDNAV mode, combining wind and track data for efficient sailing.
Lists available data pages and how to access and scroll through them.
Explains how control is transferred between multiple AP28 units in a networked system.
Presents the hierarchical structure of the Main Menu, including main categories like Setup, Installation, and Service.
Guides on how to enable or disable data pages to customize the display.
Explains how to navigate the Setup Menu and adjust various system parameters.
Details how the damping factor affects display response and stability.
Covers configuring alarms for shallow water and wind shifts to ensure safety.
Explains how to view active alarms and select data sources for system inputs.
Describes methods for selecting and updating data sources like compass and GPS.
Guides on adjusting display contrast, light level, and color for optimal readability.
Explains how to set up distinct display profiles for day and night conditions.
Details how to change the user interface language for the autopilot system.
Covers setting the units of measure for boat speed, depth, distance, etc.
Explains the seastate filter for rough weather and sailing-specific menu options.
Details parameters for tacking maneuvers in AUTO mode for sailboats.
Explains the selection between apparent and true wind steering based on conditions.
Describes navigation aids like VMG optimization and layline steering for efficient route following.
Explains how to adjust the set course using keys and the course knob.
Details the remote lock feature, which disables other control units for safety.
Outlines the initial startup sequence and prompts for new installations.
Introduces the Installation Menu and its functional categories for system setup.
Covers initial commissioning and dockside setup procedures before sea trials.
Explains how selecting the boat type affects steering parameters and system functions.
Guides through calibrating the rudder feedback unit to ensure accurate angle readings.
Details setting the drive voltage and zeroing the rudder for proper operation.
Explains the drive engage settings, including Auto and Clutch modes.
Describes how to perform a rudder test to verify correct direction and response.
Explains depth calibration for NMEA2000 transducers, including offset adjustments.
Details calibrating wind steering for optimal performance, including minimum wind angle settings.
Covers setting the course change limit for navigation mode to ensure acceptable turns.
Explains how to configure the autopilot for virtual rudder feedback when no physical unit is installed.
Guides on calibrating virtual feedback by observing physical rudder angle at hard-over positions.
Describes the rudder test procedure specifically for virtual feedback systems.
Lists the essential seatrial settings and calibrations to be performed in open waters.
Explains the final rudder zero adjustment during seatrial in calm conditions.
Details the process of calibrating the compass for accurate heading readings.
Guides on compensating for differences between compass lubber line and boat's centerline.
Explains how to correct residual errors in apparent wind angle display.
Details calibrating speed sensor input for accurate speed and log values.
Describes calibrating speed through water to match Speed Over Ground from GPS.
Explains setting the transition speed for automatic switching between HI/LO steering parameters.
Guides through the Autotune feature for automatically setting optimal steering parameters.
Details how to adjust steering parameters for course, wind, and nav steering.
Explains how to recall previously saved autotuned steering parameter values.
Lists and explains the default values for Rudder, Counter Rudder, and other parameters.
Explains the role of rudder gain and its effect on course keeping and steering stability.
Details Counter Rudder for turn rate compensation and Autotrim for response timing.
Explains the Minimum Rudder setting to improve course keeping on certain boats.
Outlines the final seatrial steps to test all autopilot functions and settings.
Lists key operational functions to instruct the end-user on.
Covers motor output and rudder deadband settings for the drive unit.
Explains how to configure SimNet units, assign them to groups, and set instance numbers.
Details how SimNet groups globally control parameter settings across multiple units.
Accesses service options for viewing system data, status, and running demo mode.
Displays autopilot model, software version, and release date.
Describes how alarms are indicated via text, sound, and light signals.
Explains how to acknowledge alarms and view a list of existing conditions.
Provides a reference for alarm codes when specific text messages are not displayed.
Guides on checking SimNet status and system data for diagnostics.
Details procedures for resetting autopilot or global SimNet configurations to factory defaults.
Assists in isolating probable autopilot faults using test features and provided tables.
Provides recommended actions for common system failure alarms like 'Off course' and 'Nav data missing'.
Outlines the limited maintenance requirements for AP28 units, emphasizing replacement over repair.
Provides instructions for cleaning the AP28 control unit and maintaining connections.
Covers minimal maintenance for the autopilot computer and inspection for rudder feedback units.
Advises contacting customer support for software updates and exchange.
Details the operation of the R3000X handheld remote for steering and mode changes.
Describes alternative control options like the S35 steering lever and JS10 joystick.
Notes compatibility and specific setup requirements for the MSD50 Stern Drive.
Explains the procedure for setting the zero point for the rudder angle display with the MSD50 Stern Drive.
Provides definitions for common terms used in the autopilot manual, such as Apparent Wind, COG, and GPS.
An alphabetical listing of all topics covered in the manual for quick reference.
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