OneFix - Hi-Precision GNSS Positioning Sensor

OneFix is the latest high-performance GNSS (Global Navigation Satellite System) sensor introduced by Digital Yacht. It utilizes multiple satellite networks and advanced dual-band technology to provide exceptionally accurate positioning, typically within 1 meter. Additionally, it incorporates robust anti-spoofing algorithms to enhance navigation reliability. OneFix is compatible with nearly all navigation systems, including legacy units, and can connect to iPads, tablets, and the latest multi-function NMEA 2000 compatible displays. This product aims to deliver highly accurate and dependable navigation for all boaters.

You may recognize the term GPS; however, GNSS is the more formal designation for the various satellite networks, including Glonass, Galileo, Beidou, and NavIC, which can now be utilized for positioning. Most contemporary marine electronic devices are capable of processing signals from several of these networks and automatically determining which to use for optimal accuracy.

Another significant advancement in GNSS technology over the past year has been the continued rollout of multi-band GNSS. Signals from certain satellite networks are now broadcast on L1 and L5 bands, and by employing a sophisticated dual-band GNSS, users will experience improved accuracy and a more reliable fix in challenging conditions. In contrast, most traditional GPS devices, MFDs, and plotters only utilize L1 frequencies and therefore cannot take advantage of this cutting-edge technology.

GPS, Galileo, Beidou and NavIC constellations
OneFix incorporates a dual band (L1 and L5) processor and works with GPS, Galileo, NavIC and Beidou to calculate a fix. Glonass (the Russian based system) is available as an option with a 2nd active antenna making for a very advanced system.

It goes a step further too by using an advanced algorithm to compare position fixes across all networks and frequencies to minimise spoofing and positional inaccuracies.

The result is a highly reliable position fix which offers typically sub 1m accuracy.

NMEA 0183, 2000 & Wi-Fi Interfaces
OneFix has also been designed to connect to older systems via legacy NMEA 0183 as well as more modern systems with NMEA 2000.

Thanks to its password protected Wi-Fi interface, OneFix provides wireless NMEA 2000 data output for charting apps such as Navionics, TimeZero, AquaMaps, Navimetrix and hundreds more. It multiplexes NMEA 2000 AIS, wind, depth, compass, and speed data to the GNSS navigation output, transforming a Tablet, PC, Smartphone or iPad into a full-function, high-precision navigation device with L1+L5 capability.

Data Logging, Marks & Tracks
OneFix built-in web interface also incorporates data logging and event marking capabilities so key points of a voyage (or even fishing hotspots) can be logged to internal memory. You can download event markers and track log files in GPX and KML formats for easy overlay on Google Maps and charts.

OneFix also supports dual external switch inputs and an “Add Mark” function in the web interface for precise event marking. For advanced analysis, full NMEA 2000 raw data logging is also available.

MOB Functionality & NMEA 2000 Alerts
OneFix can generate industry-standard alerts on the NMEA 2000 bus, enabling “pop-up” notifications on compatible MFDs. When paired with the NavAlarm sounder, it provides an ultra-loud audible alarm to ensure critical warnings are never missed. OneFix generates alerts for position inaccuracy, positioning spoofing or errors, offering enhanced safety and reliability on the water.

OneFix also supports a simple switch input for an MOB, such as Digital Yacht’s MOB input panel, and will generate a synthetic AIS MOB message on the NMEA 2000 network. By pressing the button on the Digital Yacht MOB panel, OneFix will generate NMEA 2000 MOB (man overboard) alerts.

STL Capability
OneFix also has an input for alternative positioning systems such as STL from Iridium. These use triangulation from substitute satellite networks to provide an alternative albeit less accurate position fix (approx. 50m) but have the advantage of a more powerful signal and alternative frequency outside of traditional GNSS constellations.

OneFix can accept data from these systems via NMEA 0183 and switch between networks allowing for a flexible multi-input, hub-based solution.

Easy Configuration
Accessing OneFix web interface is very simple. Simply use any phone, PC, Mac or tablet to logon to the built-in web interface and no internet connection is required.

Simply open your web browser (Google Chrome, Safari, Mozilla, etc.), enter the OneFix‘s IP address (which is always 192.168.1.1) and you can access the built-in web interface.

Through the interface, you can access advanced NMEA 2000 network diagnostics, offering features such as a detailed device list and PGN displays to simplify the handling of complex interfacing issues. It also enables users to conveniently select sources for NMEA 2000 multiplexed data, ensuring greater flexibility and control over network management.

Features/Specifications
• Hi precision GNSS system with accuracies typically better than 1m
• Utilises GPS, Galileo, Beidou and NavIC constellations – with optional Glonass sensor
• L1/L5 dual band receiver and antenna
• Advanced anti spoofing algorithm continuously monitors each constellation and generates alerts if issues detected
• NMEA 0183 and NMEA 2000 outputs
• WiFi interface for iPad and tablet navigation
• Web interface for setup and satellite analytics
• Integrated data logger with export of points by GPX/KML
• NMEA 2000 wind, depth, speed, AIS and compass data multiplexed to wireless output for use with apps
• Optional MOB switch input to generate synthetic AIS MOB SART messages on NMEA 2000
• Alarms for errors via NMEA 2000 alerts
• Buzzer/relay output for external alarms
• 1PPS timing output