SI-Tex Vector Compact: A Small GPS Compass for Accurate Heading and Position Data

The Vector Compact from SI-Tex is promoted as the world’s smallest GPS compass that delivers accurate, stable heading and position information to chartplotters, multi-function displays (MFDs), PC navigation systems, radar, sonar, AIS and autopilots. Its compact dimensions and lightweight construction make it a practical choice for installations where space is limited but reliable heading data is required.

Measuring just 10 inches in length and weighing approximately 0.9 pounds, the Vector Compact is designed for easy mounting in tight corners and confined spaces aboard small craft and larger vessels alike. Its low profile and modest weight simplify placement options and reduce the need for extensive structural modification, which is an advantage when fitting electronics in crowded helm areas or compact equipment lockers.

Connectivity is offered in two configurations to suit different onboard electronics systems. The NMEA 2000 N model connects directly to NMEA 2000 networks and is priced at $999. The S model provides NMEA 0183 connectivity for installations that still rely on the older serial protocol and is available for $1,159. These interface choices allow the Vector Compact to feed heading and position data to a wide range of marine electronics, ensuring compatibility with many chartplotters, multifunction displays, PC navigation packages and autopilot systems.

Because the Vector Compact supplies both heading and position outputs, it can support multiple navigation tasks. When integrated with a chartplotter or MFD, it provides a stable heading reference for routing and situational awareness. Linked to an autopilot, its heading data can improve course holding and steering precision. It can also augment radar, sonar and AIS systems by supplying consistent heading information that helps align other sensors and aids in target tracking and situational assessment.

Installation is straightforward thanks to the unit’s compact size. Mounting options typically include a small pedestal or bracket in a protected location where the unit has a clear view of the sky for optimal GPS reception, and where it can be securely fastened to minimize vibration. Because it is lightweight, it places minimal load on mounting hardware and can be positioned to avoid interference from nearby metallic structures or other electronic components. As with any navigational sensor, careful placement and proper cable routing help maintain signal integrity and long-term reliability.

SI-Tex Marine Electronics is based in Riverhead, New York. For product inquiries and support, the company can be reached by phone at (631) 996-2690. The Vector Compact’s pricing and interface options make it a versatile choice for retrofit projects and new installations where compact size, straightforward installation and broad compatibility are priorities.

The Vector Compact is particularly well-suited for boat owners who want a compact, dedicated heading source without the footprint of larger combined antenna/compass units. Its role is to provide a steady, reliable heading and position stream to the vessel’s existing electronics architecture, improving the performance of navigation displays and automated steering systems without extensive rewiring or large mounting requirements.

This article originally appeared in the April 2016 issue.