Satellite positioning solutions

Overview

Since the launch of our first interference-proof GNSS antenna in 2016, we have continuously monitored GNSS interference trends and developed new ways to mitigate both self-generated and external interference affecting GNSS systems. 

Whether the interference is self-caused — for example GNSS blocking by nearby radio transmitters or topside passive intermodulation — or originates from external operators in the form of jamming or spoofing, our products are designed to counter it effectively. 

Our complete product family — antennas, signal splitters, and receivers — can be used together to achieve superior system performance, or individually to complement existing installations. All products are fully compatible with other industry equipment and standards. 

GNSS antennas (proTAC™8000-series)

Our proTAC™ 8000-series GNSS antennas feature a unique radiation pattern that focuses reception on higher-elevation satellite signals while attenuating low-elevation and horizon-level signals, which are often reflections or sources of interference such as jamming. 

In addition to precise radiation shaping, the antennas incorporate advanced multi-stage band-pass filtering and amplification. This combination provides exceptional signal purity and enables the antennas to withstand extremely strong electromagnetic fields — up to and beyond 200 V/m — as well as powerful out-of-band interference. 

The antennas are also mechanically robust, built for long-term operation in demanding marine and industrial environments. They can be supplied in single- or dual-band configurations to cover all major GNSS constellations and frequencies. 

GNSS signal splitters (proGPS™1100-series)

The proGPS™ series of GNSS signal splitters allow one antenna’s RF signal — active or passive — to be distributed to multiple GNSS receivers. This significantly reduces topside cabling and enables optimal antenna placement, improving satellite visibility while keeping distance from other interfering transmitters. 

These splitters can be used not only with navigation receivers but also with communication systems such as TETRA radios that include internal GNSS receivers and require a dedicated antenna input rather than relying on shared GPS NMEA data. 

In addition to amplified models like the proGPS1120 and proGPS1130, the series also includes passive wide-band splitters such as the proGPS1220 and proGPS1240, offering low-loss, high-isolation distribution when amplification is not required. 

All models feature advanced signal protection circuitry and filtering, effectively blocking out-of-band and near-band interference to prevent receiver saturation and preserve overall system performance. 

GNSS interference proof receivers (proGPS™ 2000 and 3000-series)

Since 2016, our GNSS receivers have implemented state-of-the-art interference rejection, anti-jamming, and anti-spoofing algorithms to defend against both internal and external threats — proven highly effective in real-world marine and industrial deployments. 

The receivers support multi-constellation and multi-band operation, providing precise positioning and timing even in challenging RF environments. The proGPS™ 3100 also integrates intelligent GNSS monitoring and situational awareness features, allowing users to detect, analyse, and log interference events. 

Together with the proTAC™ 8000-series antennas and proGPS™ splitters, these receivers form a complete interference-resilient GNSS system chain — robust, reliable, and ready for the world’s toughest environments. 

Why this chain matters 

In any marine or industrial GNSS installation, system performance is only as strong as its weakest link. By combining a high-quality antenna (proTAC™ 8000 series), a professional splitter (proGPS™ series), and a resilient receiver (proGPS™ 2002/3100), you create a seamless GNSS chain where each component supports the next, delivering superior signal integrity, interference resilience, and long-term reliability — even in the most demanding environments.

Local maritime authorities and GMDSS regulations

If the vessel falls under the GMDSS regulations the use of proGPS™ GPS signal splitters should always be approved by local authorities or relevant class society if it is going to be installed with IMO approved (Wheelmark) positioning equipment. Even though the proGPS™ technology does not increase risk for malfunction in communication systems the local interpretation of IMO guidelines might vary.

proTAC GNSS antennas

proGPS signal splitters

proGPS receivers