The module measures 23 mm by 16 mm and weighs 2.2 grams, continuing the mosaic family’s SWaP-constrained design philosophy. In addition to high-accuracy positioning, the module provides heading and pitch or heading and roll angles, suited to autonomous navigation applications. 

Single or dual antenna configurations are supported for GNSS heading, enabling orientation and motion control in autonomous machinery, robotics, and precision guidance systems. Users can tune the balance between accuracy and signal availability, and the module supports Galileo High Accuracy Service out of the box, providing decimeter-level positioning without additional configuration. 

On the resilience side, the mosaic-G5 P6 includes AIM+ Premium functionality with enhanced jamming and spoofing protection, offering narrow and wideband resilience and OSNMA authentication in demanding RF environments. 

The module is compatible with open-source autopilots PX4 and ArduPilot, as well as ROS, for integration into robotic and drone systems. The mosaic-go G5 P6 evaluation kit supports testing with direct autopilot connections, and the free RxTools user interface assists with setup and evaluation. 

“By extending the mosaic family with mosaic-G5 P6, we are bringing an all-in-one module offering accuracy, resilience, and flexibility for demanding industrial applications,” said Yasmine Hunter, product manager at Septentrio.

Septentrio is exhibiting at XPONENTIAL in Detroit through May 14 at booth #37030.

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The enclosure combines the Trimble PX-1 RTX with a Calian AC4990ECF full-band Accutenna 4 (AC4) antenna element in a single drop-in package. The Calian antenna incorporates the company’s eXtended Filtering (XF) technology, which applies tight filtering around GNSS bands — to -80 dB — to reject out-of-band interference from LTE, WiFi, Bluetooth, and Ligado signals. The XF+ variant isolates upper and lower band gain paths to prevent jamming saturation across both.

The PX-1 RTX itself combines Trimble’s CenterPoint RTX corrections with compact GNSS-inertial hardware, delivering real-time centimeter-level positioning and precise true heading. The system is designed to support tighter control during takeoff and landing in obstructed environments and to reduce reliance on magnetic sensors.

“Bypassing lengthy development cycles provides an edge in today’s highly dynamic UAV landscape,” said Joe Hutton, director of Applanix airborne products at Trimble. “Removing board-level integration challenges like RF interference and mechanical noise, and incorporating a high-performance, state-of-the-art GNSS antenna element from Calian, this drop-in positioning solution enables our customers to integrate real-time centimeter positioning into their products in weeks instead of months.”

The smart antenna enclosure option is expected to be available through Trimble Applanix sales channels in Q3 2026.

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Unveiled April 16, the receiver integrates a dual-constellation GNSS processor handling military satellite signals alongside Galileo Public Regulated Service and civilian GPS, an adaptive Controlled Radiation Pattern Antenna for anti-jamming, and a high-performance clock for timing holdover. Thales describes it as the most compact solution of its type currently on the market.

The CRPA enables the receiver to operate up to 30 times closer to a jamming source than a conventional GPS unit — a capability Thales says provides a decisive advantage in environments where jamming systems are now fielded routinely rather than by specialist units alone. The onboard clock sustains tactical radio synchronization for up to 48 hours following GNSS signal loss, compared with roughly 30 minutes in conventional equipment.

The system is assembled at Thales’s facility in Valence, France, and is available for testing in operational conditions. It falls within the company’s OMEGA-backed production ramp — a €55 million investment across Valence and Châtellerault announced last year, with mass production of TopStar-M receivers and TopShield anti-jamming systems slated to begin at Valence this year.

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The two-year effort falls under the Urgent Compass programme.

Team Elaris comprises QinetiQ, UrsaNav, Roke, and GMV — bringing together U.S. and European PNT expertise across deployable and fixed eLoran architectures. Work completed under the programme will inform future demonstration, production, and deployment packages. The contract extends QinetiQ’s existing engagement with the MoD on assured PNT, which also includes the Robust Global Navigation System programme — a separate component of the UK’s broader resilient PNT strategy.

The MoD framed the award around the growing threat of GNSS jamming and spoofing in battlefield environments, noting that a compromised satellite navigation signal can result in misdirected troop movements or incorrectly guided munitions. Urgent Compass is specifically designed to explore eLoran solutions that can be rapidly deployed to contested locations worldwide.

eLoran — a modernized, high-accuracy evolution of the Cold War-era Loran-C system — operates on low-frequency terrestrial signals that are significantly more difficult to jam or spoof than GNSS, and can provide independent timing and positioning when satellite access is denied or degraded.

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As autonomous platforms push deeper into GPS-contested and GPS-denied environments, assured positioning, navigation, and timing has become a load-bearing requirement across every domain represented at the show. This year’s Defense Technologies Zone — more than 10,000 square feet of military-focused exhibits across air, land, and sea — and the Michigan Defense Exposition hosted by the NDIA Michigan Chapter bring together the program managers, platform developers, and PNT technology providers working to solve navigation resilience at operational scale.

Inside GNSS is a multiple Neal Award finalist and the leading American publication covering the policy, engineering, and technology of global navigation satellite systems. Our editors will be reporting from Detroit throughout the week. Follow coverage at insidegnss.com for news and analysis at the intersection of autonomy and positioning technology.

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The Bedford, Mass.-based company, a U.S. Space Command–designated military GPS receiver developer, describes the system as the most compact fully integrated APNT product on the market.

Developed with sponsorship from the U.S. Space Force, the Canadian Department of National Defence, and U.S. Navy NIWC Pacific, the NavGuard® 750 has been tested in contested Navigation Warfare (NAVWAR) environments. Target platforms include small ships, unmanned surface vessels, unmanned aerial systems, ground combat vehicles, robots, and fixed- and rotary-wing aircraft.

The system integrates Mayflower’s TRL 9–rated MAGNA-I GPS Anti-Jam solution within a 4.5-inch diameter Controlled Reception Pattern Antenna (CRPA) array — compatible with NATO-standard Fixed Radiation Pattern Antenna mounts — alongside a military GPS receiver with simultaneous dual-frequency (L1/L2) support, a MEMS Inertial Measurement Unit, and a Chip-Scale Atomic Clock. A 7-channel anti-jam design provides greater than 40 dB jamming suppression across multiple simultaneous narrowband and wideband threats, including rotor blade modulation environments. The system also adds Jammer Direction of Arrival and signal classification capability for NAVWAR situational awareness, and delivers a protected RF output distributable to multiple GPS receivers simultaneously.

“In today’s NAVWAR environments, GPS resilience is critical to mission success,” said Joseph Thomas, Senior Director of Government Programs at Mayflower Communications. “The IMAS provides the smallest, fully integrated, and combat-proven solution for delivering APNT to the warfighter.”

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The round was led by MESH, an electronics-focused venture capital firm, with participation from new investor Washington Harbour Partners alongside existing backers Lockheed Martin Ventures, Catapult Ventures, New Legacy Ventures, One Madison Group, IronGate Capital, and Mana Ventures.

The Santa Clara, California company develops the SiPhOG — Silicon Photonics Optical Gyroscope — a chip-scale optical gyroscope designed to deliver fiber-optic-class inertial performance in a compact, lower-cost form factor using standard semiconductor manufacturing processes. The platform targets autonomous systems operating across land, air, and maritime domains where GNSS signals are degraded or unavailable.

“Reliable navigation is fundamental to autonomy, safety, and mission assurance,” said Dr. Mario Paniccia, co-founder and CEO of ANELLO Photonics. “This additional $25 million in funding will enable us to scale production, accelerate innovation, and deliver resilient navigation capabilities to meet the rising global demand.”

The Series B-2 follows a January 2026 Army APFIT award of $20 million to accelerate procurement and fielding of ANELLO’s GPS-denied navigation technology. The company’s intellectual property portfolio now spans more than 80 issued or pending patents, alongside an AI-based sensor fusion engine.

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SV11 is the third GPS IIIF satellite to complete core mate, following SV13 and SV14, which reached the same milestone last year. The sequencing reflects a deliberate production strategy — later vehicles in the block were structurally completed first as the line ramped up. 

SV11 is M-Code-enabled, providing an encrypted, anti-spoofing signal for military PNT users, and carries a new search and rescue payload designed to improve first-responder navigation in remote environments. 

Beginning with SV13, all GPS IIIF satellites will be built on the LM2100 Combat Bus, which adds cyber-hardening and improvements to spacecraft power, propulsion, and electronics, along with additional size, weight, and power margins for future payload integration. 

GPS IIIF satellites are manufactured at Lockheed Martin’s Denver facility, where the company is using augmented reality and digital twins to accelerate production. Lockheed Martin is currently under contract through GPS IIIF SV22. 

Christina Mancinelli, vice president of Global Communications & Navigation at Lockheed Martin, cited the three-satellite core mate completions as evidence of production momentum on the next-generation block.

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Inertial Sense will be integrated into Hexagon’s Aerospace & Defence Division, where its compact, tactical-grade solutions are intended to extend the company’s resilient navigation capabilities in GPS-challenged environments. The acquisition targets growth in autonomy, aerospace, and defence markets.

“Inertial Sense brings exceptional GNSS+INS innovation that advances our assured PNT roadmap and expands resilient positioning capabilities in GPS-challenged environments,” said Stig Pedersen, President of Hexagon’s Aerospace & Defence Division.

Walt Johnson, CTO and founder of Inertial Sense, said the company looks forward to expanding access to lightweight, affordable, and precise navigation solutions through the Hexagon platform.

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One user told PCMag.com he had used it to successfully navigate the Red Sea despite widespread interference with GNSS.

“It relies on round-trip time measurements from the serving Starlink satellite (which knows its position and velocity based on GPS) to the terminals and then back to the satellite,” said Professor Todd Humphreys at the University of Texas Radionavigation Laboratory. “Some clever engineering from the clever engineers at SpaceX.” 

“Starlink PNT, as it’s called, has been a cheat code for those who knew about over the past few years. And it has been getting increasingly accurate, from 100 meters a few years ago to about 20 meters now,” Humphreys said.

At a time when GPS and other GNSS are being increasingly disrupted, many are confused by the action, not to mention being upset at losing an alternative navigation source.

Humphreys speculates the company could have a number of possible reasons.

“SpaceX might not want the liability of providing a location service whose accuracy is decent but variable. Or it could be they want to prevent bad actors from using Starlink PNT for nefarious purposes. 

They also might be preparing to launch a fee-based version of Starlink PNT and so are ending free access.”

Using Starlink signals for PNT and as a complement to GNSS has been under study by Humphreys and his team for years. In 2020 he proposed the idea to Starlink, but it was rejected. Reportedly CEO Elon Musk was concerned that it would be too much of a distraction for the company which needed to focus on its communications business.

That may well be about to change.

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