Bloodhound™: A single system that tracks high-frequency transmitters
Military forces around the world need reliable ways to communicate no matter where they are. In remote areas, today's forces use mainly satellite communications (SATCOM) for its reliability and feasibility nearly everywhere in the world.
But sometimes SATCOM devices do not work, whether it is due to geography, weather, or the purposeful disruption of the technology by enemy forces or terrorist groups. What is the least expensive and most reliable alternative for long-range communications in the absence of traditional systems?
High-frequency (HF) communication is a viable substitute for these traditional systems, given that HF communications equipment is light, inexpensive, and easy to operate, making it the perfect backup system.
HF systems are also the perfect system for any bad actors in the world who want to protect their communications from military services or other enforcement agencies. That's because HF transmitters are historically difficult to locate and track without a tactical search team with accurate intelligence about where to begin the search.
In the absence of quality intelligence, tactical search teams rely primarily on HF direction finding (DF) systems which only provide a line of bearing (LOB) or HF geolocation systems that are cumbersome to set up and operate, require a large piece of real estate, and have historically not been very accurate.
Developed in partnership with Systems & Technology Research (STR), the Leidos Bloodhound™ High-Frequency Transmitter Geolocation and Tracking System is a low-profile, completely passive system. It can be easily deployed in less than four hours by a four-person team and is designed for remote or on-site tactical operations.
- Mobile teams: In addition to the 8 low-profile antennas, two transit cases house the receiving and processing equipment, which allow for easy setup and teardown. The entire Bloodhound system is small enough to be contained in a tactical vehicle, which allows for tactical operations in an ever-changing battlespace.
- Stationary teams: The Bloodhound system can be forward deployed for extended periods with or without operators on-site. Antennas and associated equipment can be disguised in the surrounding terrain for covert operations.
How Bloodhound Locates HF Signals
Bloodhound uses advanced signal processing techniques and an ionospheric model to generate precise geolocation estimates in as little as 5 minutes. It operates from 3 MHz to 20 MHz across four sub-bands and does not require a local operator. Bloodhound can be deployed for extended operations in Expeditionary (pictured below), Fixed, or Fly Away configurations.
Where Can Bloodhound Be Deployed?
No matter what situation your search team finds itself in or their location in the world, Bloodhound enhances your ability to find and track HF emissions. The system is rated to operate in a variety of temperature ranges (-15C to +50C) and can withstand even more harsh temperatures during transport (-25C to +70C.)
Additionally, Bloodhound is MIL-STD compliant for shock, vibration, sand and dust, and humidity (up to 95%.) You can be assured it will work for you no matter where or how you deploy it.
To find out more about the Leidos Bloodhound, check out our introductory video.