Marport Trawl Explorer

Marport’s High-Definition Trawl Explorer is the skipper’s eyes under the sea. Mounted on either the headline to provide a view of fish passing under it and back into the belly, or on the tunnel to show fish making their way down to the codend, the HDTE employs CHIRP technology to relay a detailed echogram image via a wireless link direct to the wheelhouse. It offers higher resolution than any other comparable product, with individual fish down to 2.5cm discernible on the real-time echogram.

A unique feature offered only by Marport is a retrieval function, allowing a high-grade recording from the Trawl Explorer to be uploaded to the wheelhouse via a wireless link once the gear is on the deck, providing the opportunity to examine key points of the last tow.
Echograms are calibrated, so they appear identical across HDTE units and this is a feature that no other manufacturer has been able to make available.

The HDTE has a 3Hz horizontal resolution and target strength can be calibrated from recordings, building on experience and past data to refine the information presented in the wheelhouse.
This is a piece of trawl equipment that has outstanding versatility, capable of looking both upwards and downwards – or both – and offering a choice of three programmable operational modes, in addition to pitch & roll status, temperature and depth data, and batter status, all with a rapid update rate.

Technical Specifications

Marport brochure