Israel Aerospace Industries has unveiled an upgrade to its satellite operational navigation systems, which it says repels attempts at jamming.

While most navigation, communication and electronic warfare systems rely on continuous availability of multiple satellites for navigation, the majority of worldwide avionics systems are vulnerable to localized, low-power jamming emitters.

"In the Army, we have recognized that PNT [Positioning Navigation Timing] is a critical enabler of our warfighting capability, and that GPS is the predominant materiel solution that we rely upon," the U.S. Army said in a 2015 statement.

IAI said its ADA-O development features an advanced architecture and can defeat jamming efforts. The system can be installed on armored vehicles, communications carriers and other land-based platforms.

The ADA approach to Assured PNT [Positioning Navigation Timing] involves the use of advanced digital processing techniques that provide a high-level of immunity in severe and dynamic multi-jammer scenarios, the IAI statement said.

The company said it recently sold an ADA package for "tens of millions of dollars" to an unnamed Asian-Pacific nation's military.

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Angry Norway says Russia jamming GPS signals again
Oslo (AFP) Feb 11, 2019
Norway's foreign intelligence unit on Monday expressed renewed concerns that its GPS signals in the country's Far North were being jammed, as Oslo again blamed Russia for the "unacceptable" acts. In its annual national risk assessment report, the intelligence service said that in repeated incidents since 2017, GPS signals have been blocked from Russian territory in Norwegian regions near the border with Russia. The jamming events have often coincided with military exercises on Norwegian soil, su ... read more