Trisonde Analog DST800

The Raymarine analog DST800 tridata transducer is a multifunction sensor designed to measure and transmit three essential navigation data types: depth, speed through water, and water temperature. It stands out for its analog operation, meaning it outputs raw signals that require a compatible instrument or converter to be interpreted and displayed.

This fishfinder performs three main functions:

Depth: It measures the distance between the transducer and the seabed.Speed: It measures the boat's speed through the water using a paddlewheel.Temperature: It measures the surrounding water temperature.

The depth sounder of the DST800 analog triducer typically operates at a frequency of 200 kHz. This frequency is common for depth detection applications on recreational boats.

The DST800 fishfinder can measure depths up to approximately 100 to 180 meters (330 to 600 feet), depending on water conditions and the quality of the display or converter used.

The DST800 analog triducer can measure boat speed through water in a range from 0 to approximately 45 knots.

The temperature sensor integrated in the DST800 triducer can measure water temperature in a range from -10°C to 40°C.

Yes, the paddlewheel of the DST800 triducer’s speed sensor is designed to be easily replaceable. This allows maintenance and replacement of this wear part without having to remove the entire triducer from the hull.

The weight of the DST800 analog depth sounder is approximately 1.4 kilograms.

The triducer itself is primarily passive for depth and speed functions. However, the integrated temperature sensor may require a small supply voltage, which is typically provided by the compatible display instrument or the converter to which the triducer is connected.

The DST800 analog triple transducer is designed for through-hull installation. This means it is mounted through a hole drilled in the boat's hull, with the transducer face flush with the exterior of the hull for optimal performance.

For through-hull installation of the DST800 triducer, a hole with a diameter of approximately 51 mm (2 inches) is typically required in the boat hull.

Yes, for optimal performance, it is recommended to install the depth sounder in an area of the hull where the water flow is most laminar and free of air bubbles. Avoid areas near propellers, keels, water intakes, or any element that could create turbulence. The ideal location is typically toward the bow of the boat, away from noise sources.

As an analog fishfinder, the DST800 is compatible with dedicated analog display instruments that can directly interpret its raw signals. To integrate it into modern systems, it requires an analog-to-digital converter.

No, the DST800 analog tridata transducer does not output NMEA 2000 data directly. It provides raw analog signals for depth, speed, and temperature. An analog-to-digital converter is required to integrate it into an NMEA 2000 network.

To integrate the DST800 analog triducer into an NMEA 2000 network, you will need an analog-to-digital converter compatible with NMEA 2000. Examples include the Raymarine iTC-5 module or dedicated converters such as the Airmar ST900/P79, which convert analog signals into digital data usable by modern multifunction displays (MFD).

The DST800 analog triducer package typically includes:

The DST800 analog triducer with its integrated cable.A nut and washers for through-hull installation.A blanking plug to seal the transducer hole when the paddlewheel is removed for maintenance.A fairing block may also be included for installations on inclined hulls.