U.S. Navy Expanded Growler Jammer Contract
The military branch added $876.4 million to an existing deal for electronic warfare system technology.
Updated on Sept. 24, 2026 in Military
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The U.S. Navy has increased its contract with L3Harris Technologies by $876.4 million to support the Next Generation Jammer Low Band system. This modification raises the total contract ceiling to over $1.46 billion to facilitate critical electronic warfare upgrades.
Why it matters
The expansion supports a broad modernization and equipment replacement effort for critical jamming technology. This project is vital for maintaining tactical air superiority and electronic defense capabilities.
The contract modification increases the total ceiling to over $1.46 billion, supporting production tooling and cybersecurity work for the Next Generation Jammer Low Band system. L3Harris is currently tasked with delivering eight prototype jamming pods.
The players
U.S. Navy
The branch of the United States Armed Forces responsible for naval operations and maritime electronic warfare capabilities.
L3Harris Technologies
An aerospace and defense company that specializes in technology solutions for government and commercial customers worldwide.
Australian air force
The aerial warfare branch of the Australian Defence Force that will receive benefits from the new electronic jamming systems.
The details
The contract covers the development of non-recurring production tooling and equipment for the Next Generation Jammer system. This technology utilizes an open architecture design to support both the U.S. Navy and the Australian air force.
Timeline
In 2024, the Navy selected L3Harris for initial prototype delivery.
The contract modification was announced on September 23, 2026.
Work is expected to be completed in fiscal year 2031.
The Big Picture
This investment secures the ongoing development of the Next Generation Jammer Low Band system. The funding follows a pattern set by previous modernization programs intended to transition cutting-edge electronic warfare prototypes into active fleet service.
The expansion of this contract represents a long-term commitment to maintaining electronic warfare capabilities for the U.S. and its international allies. Taxpayers and defense observers can expect these systems to remain in development and production through the end of the decade.
The takeaway
The move underscores the critical reliance of modern military forces on electronic jamming capabilities. Upgrading these systems is a complex, multi-year endeavor that requires consistent financial support to reach completion.
Further reading
For more information on defense procurement and strategic initiatives, see the Military section.
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