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Unjammable Communications for Air, Maritime Surface and Subsea Domains

Key Benefits

Unjammable lifeline manufacturing
  • Battle-Proven Performance
    • Battlefield-tested overseas against active electronic warfare systems
  • Unjammable & Undetectable
    • Defeats electronic warfare attacks via wired connection
  • 10,000x Data Transfer
    • Data transfer rate over 10,000 times that of traditional copper systems
  • Extended Range
    • Proven reliable performance at lengths in excess of 25 kilometers
  • National Defense Authorization Act (NDAA) Compliant
    • 100% American made with carefully selected components
  • Lightweight & Compact
    • Significantly lighter and smaller packs than market alternatives at equivalent range

Product Portfolio

Applications

  • Military & Defense Applications
  • Surveillance & Reconnaissance High-definition cameras and sensors on drones transmit secure, high-data-rate intelligence to operators in real time for immediate analysis and decision making
  • Combat Operations UASs provide live battlefield feeds, precise targeting information and control guided munitions with pinpoint accuracy in contested electronic warfare environments
  • Subsea Operations Command, control and real-time high bandwidth data distribution between host and linked platforms in harsh ocean environments
  • Special Operations Real-time ISR over hostile territory with secure communications that cannot be jammed, intercepted, or disrupted

Aerial Domain Solutions

Fiber-Optic Tether products on display

Subsea Domain Solutions

L3Harris Micro-Diameter Fiber-Optic Cable (MDF) spool
UxS Fiber-Optic Tether Systems
Still frame from Fiber-Optic Tether products video, flying drone with tether pack

Platform Integration & Mission Partnership

L3Harris transforms existing RF sUAS platforms into mission-ready systems with fiber-optic command and control

Our Capabilities

  • 3D modeling and prototyping
  • Electrical integration
  • Software development
  • Field flight testing
  • Trained and certified drone pilots
  • NDAA-compliant products

Manufacturing Excellence

U.S.-Based Production at Scale

Capabilities

  • Expanded fleet of fiber pack winders (2025-2026)
  • Dedicated production facility with ability to ramp production
  • State-of-the-art test tank facility
  • Precision winding services

Quality Assurance

  • Quality Control testing on every manufactured cable run
  • Visual inspection of jacket
  • Pull-testing to validate break strength
  • Optical attenuation measurements at atmospheric and hydrostatic pressure (>1,500 psi)
  • Simulated real-world ocean and application-specific payout conditions

Proven Performance

Trusted by U.S. Military & Industry Partners

  • Navy Programs: MDF technology is a key component of the Improved Post-Launch Communications System (IPLCS) for the Navy's next-generation MK-48 Mod 8 torpedo
  • Industry Leadership: Multiple U.S. Navy and industry partners have selected L3Harris as their fiber optic tether provider for subsea applications, including autonomous underwater vehicle programs
  • Battlefield Validation: DFT systems are battlefield-tested overseas against active electronic warfare systems

Contact the Sales Team to schedule a demo

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