Business Wire

MA-ADVA

Share
UrsaNav trials eLoran as vital GNSS backup using ADVA’s grandmaster clock solution

ADVA (FSE: ADV) today announced that UrsaNav and ADVA have conducted an enhanced long-range navigation (eLoran) field trial using UrsaNav’s eLoran receiver and ADVA’s Oscilloquartz grandmaster clock technology. The successful demo shows that eLoran offers a robust and reliable backup for GPS and other GNSS and could be used to provide an assured position, navigation, and timing (PNT) service. The trial follows US federal executive order 13905 aimed at strengthening national resilience through PNT services, including protecting critical infrastructure such as electrical power grid and communication networks from rising cyber threats. By harnessing ADVA’s flexible OSA 5420 Series , designed with assured PNT (aPNT) technology, UrsaNav has shown that eLoran can provide a new layer of protection and significantly boost timing resilience and security.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210727005101/en/

“The success of this field trial demonstrates how eLoran, as part of ADVA’s assured PNT solution, can serve as a crucial backup for GPS. We have shown how our technology enables ADVA’s grandmaster clock to receive UTC timing from the eLoran system for a period of several days with the same accuracy and stability as GPS. Of course, this capability is extensible to other GNSS as well. eLoran is far less vulnerable to unintentional jamming and spoofing disruptions or intentional attacks, thereby delivering nanosecond precision with even more resilience,” said Charles Schue, CEO, UrsaNav. “By partnering with ADVA, we’ve been able to show that our eLoran receiver interoperates with the best network timing toolkit available. The OSA 5420 Series is a great product – highly efficient and easy to operate. Together with ADVA, we’re paving the way for tomorrow’s more robust assured PNT synchronization architecture.”

Across the globe, essential services and entire industries are increasingly reliant on GNSS for PNT information. But these satellite systems are inherently susceptible to interference, which could have disastrous consequences. A major disruption may result in billions of dollars of economic damage as well as a serious risk of loss of life. eLoran is one of the key technologies that could provide protection, with governments including the US exploring its potential as an alternative PNT source. UrsaNav’s latest trial harnessed the OSA 5420 Series grandmaster clock with inbuilt GNSS receiver. Timing stability from GPS was measured for several days. This was then replaced with eLoran for the same period with no loss of stability. What’s more, the test was conducted indoors where GNSS signals are not usually available, potentially extending the availability of precise UTC timing to many more environments.

“Commercially available GNSS jammers and spoofers are easy and cheap for attackers to construct. That’s part of the reason why we’re seeing a growing number of incidents across the world of blocked or misleading signals. If power utilities, enterprises, service providers and governments continue to rely on GNSS alone, it’s only a matter of time before the consequences become very serious. That’s why we’re committed to tackling GNSS vulnerabilities with advanced technologies like our ePRTC offering, cesium atomic clocks and our optical timing channel solution,” commented Nir Laufer, VP, product line management, Oscilloquartz, ADVA. “Now that UrsaNav has demonstrated the power of our OSA 5420 Series to utilize eLoran in the event of outages, we have another very important tool to ensure the quality and availability of time-sensitive services.”


About ADVA

ADVA is a company founded on innovation and focused on helping our customers succeed. Our technology forms the building blocks of a shared digital future and empowers networks across the globe. We’re continually developing breakthrough hardware and software that leads the networking industry and creates new business opportunities. It’s these open connectivity solutions that enable our customers to deliver the cloud and mobile services that are vital to today’s society and for imagining new tomorrows. Together, we’re building a truly connected and sustainable future. For more information on how we can help you, please visit us at www.adva.com .

About Oscilloquartz

Oscilloquartz is a pioneer in time and frequency synchronization. We design, manufacture and deploy end-to-end synchronization systems that ensure the delivery and assurance of highly precise timing information over next-generation packet and legacy networks. As an ADVA company, we’re creating new opportunities for tomorrow’s networks. For more information, please visit us at www.oscilloquartz.com .

About UrsaNav

Ursa Navigation Solutions (“UrsaNav”) is the world’s leading supplier of Low Frequency PNT solutions, with proven performance delivering the latest technology for eLoran systems, including transmission, control, monitoring, and reference site equipment. From initial concept through operational certification, UrsaNav provides every aspect of the provider or user experience, including commercial and military PNT solutions, critical infrastructure protection, and legacy system transformation. www.ursanav.com .

Published by:
ADVA Optical Networking SE, Munich, Germany
www.adva.com

Social Media:

https://www.facebook.com/ADVAOpticalNetworking

About Business Wire

Business Wire
Business Wire
101 California Street, 20th Floor
CA 94111 San Francisco

http://businesswire.com

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

Berkshire Hathaway Specialty Insurance Names David Lee Global Chief Human Resources Officer12.1.2026 16:27:00 CET | Press release

Berkshire Hathaway Specialty Insurance (BHSI) today announced the promotion of David Lee to Global Chief Human Resources Officer. “I am thrilled to have David leading our human resources group worldwide,” said Peter Eastwood, President and Chief Executive Officer, BHSI. “An experienced HR practitioner and lifelong student of the profession, his deep expertise, stellar work ethic, and commitment to BHSI values will continue to drive success across our global talent and HR initiatives.” David succeeds Kim Briones, who has led BHSI’s HR group since the company’s founding in 2013 and is retiring from her full-time role. “I want to express my sincere gratitude to Kim for her partnership and friendship over many years and for her outstanding leadership in building our HR function from the ground up,” Peter added. “She has played a pivotal role in growing and developing our company’s greatest asset – our global team of individuals with excellent capabilities and strong character – and in help

Owkin Advances Frontier Model Development for Biological Artificial Super Intelligence, Accelerated by NVIDIA12.1.2026 16:00:00 CET | Press release

Collaboration Leverages NVIDIA's Open Models, AI Infrastructure and Expertise to Build Next-Generation Biological Reasoning Models for Drug Development Owkin, an AI company on a mission to solve the complexity of biology, today announced a collaboration with NVIDIA to enhance OwkinZero, Owkin's biological large reasoning model. The collaboration will leverage NVIDIA's advanced AI computing ecosystem, including the Nemotron family of open models and the NVIDIA NeMo framework to improve the performance, scalability, guardrails, and robustness of Owkin's biological reasoning capabilities to accelerate future breakthroughs in drug discovery and development. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260112573701/en/ Owkin Advances Frontier Model Development for Biological Artificial Super Intelligence, Accelerated by NVIDIA. This marks Owkin's first collaboration with NVIDIA and represents a significant milestone in building

SecurityBridge Announces CEO Transition to Accelerate Global Expansion12.1.2026 15:15:00 CET | Press release

SecurityBridge, a leading provider of cybersecurity solutions for SAP, today announced the appointment of Jesper Zerlang as Chief Executive Officer, effective January 1, 2026. Zerlang transitions from his role as Chairman of the Board, a position he has held for the past 12 months, as the company enters its next phase of international expansion, backed by funds advised by BUBregal Unternehmerkapital (BU). This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260112824449/en/ Jesper Zerlang appointed Chief Executive Officer, SecurityBridge SecurityBridge protects SAP environments for large enterprises by reducing cyber risk across mission-critical SAP landscapes. The company is trusted by global customers to safeguard systems that power core operations, financial processes, supply chains, and digital transformation programs. “SecurityBridge is uniquely positioned at the intersection of cybersecurity and SAP – a domain I know deeply

New Clinical Study Publication Validates Respiratory Outcomes for the Onera Home-polysomnography System12.1.2026 14:30:00 CET | Press release

The results of this study provide further clinical evidence that patient-applied, patch-based PSG is a viable alternative to in-lab PSG, enabling broader access to gold-standard sleep testing. Onera Health, a leader in transforming sleep medicine, announces the recent publication of a multicenter validation study of its Onera Sleep Test System (STS) in the ERJ Open Research, a leading, fully open-access scientific journal published by the European Respiratory Society (ERS). This is the second publication from this study, and it demonstrates that the patch-based Onera STS home-polysomnography (hPSG) device accurately identifies respiratory events and distinguishes AHI severity when validated against simultaneous in-lab polysomnography and is a viable option for unattended home use. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260112821647/en/ Patient sleeps with the patient-applied Onera home Polysomnography (Onera hPSG) so

Riskified Analysis Reveals 1 in 4 Refund Dollars Is Abusive; Introduces "Dynamic Returns," a New Policy Protect Feature, to Safeguard Revenue While Increasing Customer Satisfaction12.1.2026 14:00:00 CET | Press release

Riskified (NYSE: RSKD) a leader in ecommerce fraud and risk intelligence, today released a research analysis highlighting a growing customer experience dilemma: As merchants tighten controls to fight a surge in return and refund abuse, they are inadvertently creating a more restrictive and frustrating experience for their best customers. To help retailers mitigate this challenge, Riskified has introduced a new feature in its Policy Protect solution, Dynamic Returns, AI-powered return decisions that adapt in real-time based on customer eligibility. Riskified's 2024 analysis of over a million refund claims found that 1-2% of total order value measured in sales dollars was requested back as refunds, with nearly 1 in 4 dollars claimed being abusive. In response to rising abuse, many retailers are implementing restrictive tactics like flat return fees, shorter return windows, and delaying refunds, often taking 10+ days for warehouse inspection. These measures frustrate good customers, as 68

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye