{"product_id":"qbp694857","title":"Simrad A2004 Autopilot Pack, No Drive, HS75 GPS Compass, AC70 Autopilot Computer, RF300 Rudder Feedback, Optically Bonded 4.1 in Display, NMEA 2000","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Simrad 000-13901-001 is an A2004 autopilot system kit with an HS75 GNSS compass, supplied as a no-drive package for boats that already have, or plan to add, a compatible steering drive unit.\u003c\/p\u003e\u003cp\u003eAt the helm, the A2004 controller uses a 4.1-inch optically bonded color LCD with a 170 degree viewing angle, plus a rotary dial and dedicated mode keys for quick course changes and steering mode access. The controller is rated IPX7 for spray and washdowns, and it is specified to operate from -25 to +65 C.\u003c\/p\u003e\u003cp\u003eThe AC70 course computer handles steering control and system logic, while the RF300 rudder feedback unit provides rudder angle for consistent response. The HS75 adds GNSS-based heading with up to 10 Hz updates and heading accuracy specified to 0.75 degrees, so the autopilot can hold a steady course at low speed and even when the boat is stationary.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eNo-drive system kit: controller, course computer, rudder feedback, and HS75 heading sensor are included; a hydraulic pump or other drive unit is not.\u003c\/li\u003e\n\u003cli\u003eA2004 helm controller with a 4.1-inch optically bonded color display, 320 x 240 resolution, and a 170 degree viewing angle.\u003c\/li\u003e\n\u003cli\u003eRotary dial with an anodized aluminum knob and dedicated keys for steering modes, a configurable WORK mode, and turn patterns.\u003c\/li\u003e\n\u003cli\u003eNo Drift steering mode to compensate for wind and tide and keep the vessel on heading.\u003c\/li\u003e\n\u003cli\u003eNMEA 2000 certified networking, with NMEA 0183 in\/out available for integrating with other onboard systems.\u003c\/li\u003e\n\u003cli\u003eAC70 course computer supports 12 V or 24 V DC supply for common commercial electrical systems.\u003c\/li\u003e\n\u003cli\u003eOptional single-thruster control when an AD80 or SD80 interface module is added.\u003c\/li\u003e\n\u003cli\u003eHS75 GNSS compass supports GPS, GLONASS, BeiDou, Galileo, and QZSS for global coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eWhat's included\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eA2004 autopilot controller (helm display and rotary control head)\u003c\/li\u003e\n\u003cli\u003eAC70 autopilot computer (course computer)\u003c\/li\u003e\n\u003cli\u003eRF300 rudder feedback unit\u003c\/li\u003e\n\u003cli\u003eHS75 GNSS compass\u003c\/li\u003e\n\u003cli\u003eNMEA 2000 cable (15 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eThe A2004 controller can be bracket mounted or flush mounted at the helm. The unit measures 177 mm wide by 115 mm high and is about 56 mm deep; with the bracket installed, allow up to 204.8 mm width and 124.5 mm height for clearance.\u003c\/p\u003e\u003cp\u003eMount the AC70 course computer in a dry, protected space where you can access steering drive wiring and the rudder feedback connection. Leave service loops on cabling and protect all penetrations and connectors from chafe and moisture.\u003c\/p\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis kit is aimed at non-IMO professional vessels and similar boats that want the A2004 style of controller and steering logic. Because it is supplied without a drive, you will still need a compatible drive unit for your steering system, such as a reversible hydraulic pump or non-isolated solenoid valve control, matched to your cylinder size and steering layout.\u003c\/p\u003e\u003cp\u003eRudder feedback is included, so the system fits installations where you can mount a feedback arm at the rudder stock or steering linkage. For low-speed maneuvering with thruster assistance, the system supports a single thruster when paired with an AD80 or SD80 interface module.\u003c\/p\u003e\u003ch6\u003eElectrical and network integration\u003c\/h6\u003e\u003cp\u003eThe A2004 controller and HS75 compass connect to an NMEA 2000 backbone using Micro-C connections, so plan for a properly powered backbone with terminators and an available tee for each device. The controller can be powered from the NMEA 2000 network, while the AC70 course computer uses a dedicated 12 V or 24 V DC supply.\u003c\/p\u003e\u003cp\u003eFor navigation steering, the autopilot can take route and guidance data from compatible onboard navigation equipment over the network. Mount the HS75 where it has a clear view of the sky and a stable platform to get the most consistent heading performance.\u003c\/p\u003e\u003ch6\u003eUse on board\u003c\/h6\u003e\u003cp\u003eThis setup is a strong fit for workboats, commercial fishing vessels, and passenger boats where the helmsman wants a rotary interface that is quick to operate in rough conditions. It also fits refits replacing older professional autopilots, especially when adding GNSS heading to improve course keeping in wind and tide.\u003c\/p\u003e\u003ch6\u003eMaintenance and care\u003c\/h6\u003e\u003cp\u003eAfter heavy weather or washdowns, rinse salt residue from the helm controller and wipe the screen with a soft, damp cloth. Periodically check NMEA 2000 connectors, the rudder feedback linkage, and the course computer wiring for looseness or corrosion, especially in high-vibration installations.\u003c\/p\u003e","brand":"Simrad","offers":[{"title":"Default Title","offer_id":52269682458805,"sku":"QBP694857","price":6297.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1300980_qbp694857.jpg?v=1771545206","url":"https:\/\/www.qualityboatparts.com\/products\/qbp694857","provider":"Quality Boat Parts","version":"1.0","type":"link"}