Blackstone™ Direction Finding (DF) & Electronic Surveillance Systems

Mission-Critical Intelligence to the Warfighter

The Leonardo DRS Blackstone Systems performs direction finding (DF), time difference of arrival (TDOA) and electronic surveillance capabilities providing mission-critical intelligence to the Warfighter by rapidly detecting and locating a wide range of threat signals, monitoring signals of interest, and supporting real-time analysis of the signal environment. The light weight, low power consumption, field programmability, and multiple deployment configurations make it well suited for a wide range of operational scenarios. This DF sensor can easily be easily integrated into existing MOLLE/PALS webbing chest rigs and with a tactical radio for internode and squad communications.

The Blackstone Body-Worn System utilizes ruggedized Smartphone technology for configuration, command and control of the system. It also displays parameters of intercepted signals and the positions of team members overlaid on a geo-referenced map, which  provides situational awareness.

The Blackstone Vehicle Mount Kit (VMK) extends the utility of the Blackstone system into stationary mast and moving vehicle applications. The sensor and DF head are repurposed from their on-the-march configuration to the VMK configuration in less than five minutes. Vehicle mounting with the VMK improves the HF DF performance while extending mobility and field of view depending upon deployment.


  • Features a collapsible small form-factor DF antenna
  • Employs a low-SWaP Dual Channel 6 MHz SI-8649A Picoceptor™ in a ruggedized chassis designed to meet MIL-STD-810G specifications
  • Picoceptor™ software load supports high-speed scanning, monitoring, and geo-location of narrowband signals in the 2-3000 MHz band
  • Supports single- or multi-node operations
    • Utilizes tactical radio for communications infrastructure
    • Flexible targeting control
    • Mapping of DF/TDOA and team node positions
    • Collaborative direction finding
    • Audio/visual target alerts

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