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Home > Electronics > Automatic Identification System > Digital Yacht Automatic Identification System >
Digital Yacht GPS150 DualNav GPS Sensor ZDIGGPS150

Digital Yacht GPS150 DualNav GPS Sensor ZDIGGPS150

Availability: Usually ships the next business day

Brand New with Factory Warranty

Digital Yacht GPS150 DualNav GPS Sensor ZDIGGPS150
c50612List Price: $US 189.00Our Price: $US 155.00

The GPS150 DualNav™ positioning sensor combines a super accurate 50 channel GPS with GLONASS, the Russian funded satellite positioning system that is now on line and providing an excellent back up or alternative to GPS. This “smart” sensor will automatically switch between the systems or the user can manually select the most appropriate for their activity. The GPS150 will also be able to utilise the European funded Galileo positioning system when it comes on line (IOC – Initial Operation Capability in 2018).

The implementation of GLONASS as an additional satellite positioning system is probably the biggest step change in maritime navigation since GPS was fully augmented back in the mid 90’s. Digital Yacht’s GPS150 utilises the industry standard NMEA data format allowing older chart plotters as well as current generation products to take advantage of this new technology. The GPS150 also allows the user to select a variety of different NMEA baud rates (4800, 38400 and 115200) to allow interfacing with legacy and current systems. It also supports a new TurboNav™ mode which will appeal to racing yachtsmen and performance users where GPS/GLONASS data is output at 10Hz (10 x faster update than normal) and with an interface speed of 115200 baud which is 24 x the speed of normal NMEA data. This massively improves slow speed navigation data as well as providing the best course and speed data in a dynamic situation.

The GPS150 houses all the electronics in its compact 75mm antenna and has a single multi core cable for power and data. Power consumption is just 30mA at 12V. It can be used as a simple positioning sensor for plotter or VHF DSC systems as well as a precision, high speed sensor for performance sailing/super yachts. Setup is easy with a block of simple internal switches setting the characteristics of the unit. This allows the device to be programmed in the field without specialist software or programming tools.

The GPS150 can also connect to the WLN10 wireless interface to allow data to be sent to mobile devices such as iPhones, iPads and Tablets. There is also a USB interface for PC and MAC users (ZDIGUSBNMEA).

Knowing your position whilst at sea is key to safe navigation. What we now take for granted, was extremely difficult, time consuming and inaccurate. Then, in the latter half of the 20th century, came the electronic positioning systems – Decca, Loran, Transit and in the 1990s, the global positioning system, GPS.

Over 20 years have passed since the first GPS receivers were commercially available and in this time the whole world has come to rely on this US funded technology. Now every boat, plane, car and train that we travel on has GPS navigation and even your smart phone can give a GPS position accurate to within 10m, anywhere in the world, at the touch of a button.

Much political discussion has taken place over our reliance on GPS technology, to the point where both Europe (Galileo) and China (Compass) are developing their own satellite based navigation systems, which are scheduled to be fully operational by 2020. However, whilst GPS was being developed in the 1980s, there was another competitive system developed in Russia called GLONASS. This system was very much over shadowed by the American GPS system and due to the secrecy surrounding the technology and the difficulties for non-Russian companies to license this technology, it never achieved wide spread commercial use outside of Russia and surrounding countries.

During Russia’s difficult financial period between 1989-1999, government spending on their space program was cut by 80% and launching of new GLONASS satellites stopped. With relatively short life spans the GLONASS satellites soon started to fail and by 2001 there were only 6 satellites still operational and the GLONASS service effectively ceased. Most observers at the time thought this would be the death of GLONASS but in 2000, with the Russian economy recovering, President Vladimir Putin took a special interest in GLONASS and made the restoration of this service a high priority.

Between 2002-2011, a large investment was made and at the end of 2011 GLONASS was fully restored and now offers worldwide coverage (with 24 operational satellites) and accuracy almost as good as GPS. In areas of high Latitudes (North and South) GLONASS is more accurate than GPS due to the orbital position of the satellites.

Now with the GPS150 DualNav™ technology, boat owners can have a single sensor that will automatically read satellite data from both GPS and GLONASS constellations, choosing the best signals from over 50 satellites. Wherever you are in the world you now have twice the satellites to choose from resulting in the GPS150 receiver having much better coverage, time to first fix and positional accuracy. Add to this the new high sensitivity receiver design, selectable baud rate and 10Hz position update rate and you have a GPS receiver that is significantly better than every previous marine GPS receiver on the market.

The new performance is particularly noticeable if the receiver is mounted below deck/inside the wheelhouse where the high sensitivity receiver still gives a good position fix or when there are obstructions blocking the view of the sky, such as a wet sail shadowing the antenna or when sailing in rivers or close to cliffs, plus DualNav™ technology with more satellites to choose from, gives a much more accurate fix.

On larger boats, it is now possible to have two completely separate position sources, not just two GPS units but two different positioning systems so that you can compare and validate your actual position. Set one GPS150 to GPS mode and another GPS150 to GLONASS mode and you have dual redundancy and two independent positioning systems.

The GPS150 also supports SBAS (Satellite-Based Augmentation System) which is the generic name given to the differential signal transmitted by various local geo-stationary satellites. SBAS allows the GPS150 receiver to remove errors in the position due to environmental conditions and improves accuracy down to <1m. Using WAAS in the US and EGNOS in Europe the GPS150 will automatically switch to differential SBAS mode when available.


  • 50 channel precision GPS/GLONASS positioning sensor
  • Just 75mm in diameter and designed to fit industry standard 1” mounts
  • Ultra tough, waterproof construction
  • NMEA output configurable for 4800, 38400 and 115200 baud
  • Selectable update rates from 1 to 10Hz
  • Configurable in the field using simple DIP switches inside the antenna
  • TurboNav mode offers super fast updates to optimise positioning information in slow and high speed applications
  • WAAS/EGNOS/SBAS enabled for sub 1m accuracy
  • User selectable GPS/GLONASS mode or auto selection
  • Ultra low 30mA power consumption (at 12V DC)
  • 5-30V DC power input
Quick Guide

View (pdf)

GPS150 DualNav Sensor – Six Great Applications Afloat

It’s been just over a year since the GPS150 Dualnav positioning sensor was launched and we’ve seen a multitude of different applications. The GPS150 is a sophisticated combination GPS and GLONASS positioning sensor which is field programmable for a variety of different modes and data outputs. Field programming is done using a series of internal DIP switches so its fast and easily configurable by the installer

It can be programmed as a GPS only, GLONASS only or unique DualNav mode sensor which can offer sub 1m accuracy and a 10Hz super fast output which improves chart plotter redraws significantly

Here’s 6 great applications for the GPS150

GPS150 – High performance positioning sensor

Configured in DualNav mode you’ll typically get better than 1m accuracies from the combination of GPS & GLONASS positioning, coupled with a fast 38400 baud NMEA output (24x faster than normal systems) and a 10Hz update rate for super fast and smooth plotter redraws

GPS150 – Add GLONASS to your GPS based system

We absolutely rely on GPS for every aspect of our navigation so why not take advantage of GLONASS too. GLONASS is now available thanks to funding of nearly $5billion from the Russian government and like GPS, it’s FREE and global. The GPS150 can be configured as a GLONASS only sensor so you can add this to your existing systems by connecting to a spare NMEA port or fitting a simple selector switch to allow the positioning sources to be selected. Double up on your navigation options!

GPS150 – NMEA sensor for DSC VHFs

With many modern chart plotters (for instance Raymarine A series) not incorporating a NMEA 0183 output, you can’t get positioning information into the vast majority of DSC VHFs. A reliable feed to the DSC radio is an essential safety feature – press the distress button with no position and you might as well not bother! The GPS150 can be configured as a simple 4800 baud positioning sensor compatible with every DSC VHF. Boat builders also see this as a safety priority – the DSC radio should have its own fail-safe positioning data

GPS150 – Raystar replacement

The very popular Raystar antennas used by Raymarine on C/E series and other products are now end of life. They are also prone to failure rendering the integrated navigation system useless without a positioning input. The GPS150 can connect to the NMEA 0183 input on these older systems and bring high definition positioning on board!

GPS150 – WiFi connect to an iPad or tablet

gps150 system drawing

You can connect the GPS150 to our WLN10HS and make high definition positioning data available for your iPad or tablet. The WLN10HS creates an on board hotspot – simply connect your device (up to 5 can connect) and stream data to your favourite, compatible app such as iNavX, NavLink, NMEA Remote, iSailor and more

GPS150 – USB for PC and MAC

The GPS150USB version is also available for MAC and PC based navigation systems. Turn your notebook into a high performance marine charting system with the latest software. The GPS150USB is self powered from the PC making it great for charter skippers too. You can even add dual USB and NMEA connectivity to the GPS150 standard version with our USB-NMEA adaptor

GPS150 – more next generation navigation from Digital Yacht



**The price is subject to change at anytime without any notice.  We are not responsible for any typographical errors.  Any products can be cancelled from sale at any time.

** All Products sold here are Brand New unless specified Otherwise and come with Full Manufacturer's Warranty

WarningWARNING: This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP) which is known to the State of California to cause reproductive harm, and Vinyl Chloride which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. __________________________________________________________________________________________


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