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Tools to Support Assured PNT

GPS Source creates tools that support the US Army's strategy for Assured PNT. This includes tools to help reduce SWaP-C (Size, Weight, Power and Cost), increased protection to ensure PNT is available and the ability to receive and distribute M-code.

Global Positioning System (GPS) technology has become an integral part of Mission Command systems and military ground vehicle architectures. It plays an important role in the successful execution of tactical missions.  The term “GPS” conveys positioning, navigation, and timing (PNT) data, data that is essential in virtually every modern weapon system. Precision timing provides joint forces the capability to synchronize operations and communications. PNT also enables precision attack from stand-off distances, reducing collateral damage and allowing friendly forces to avoid threat areas.

The dependence on GPS exemplifies the need for the US military to protect PNT sources to assure unhindered access.  The concept of Assured PNT (A-PNT) is an important topic with military GPS stakeholders around the world. Read more about Assured PNT.

Enhanced D3 (ED3)

ED3 is capable of providing Resilient PNT distribution on a mounted platform with true port independence. Each system that is plugged into the ED3 has full control over the port from the ED3 as if the device has its own DAGR.

It is a smart GPS "Hub" that will perform the function of up to eight GB-GRAMS (i.e. DAGR or similar device).  It is not a router or a splitter as ED3 will distribute ICD-GPS-153 PNT data simultaneously to multiple communication or weapon systems that require GPS information. It is optimized for A-PNT and supports the US Army's System of Systems (SoS) strategy. 

The Enhanced D3 distributes centralized IS-GPS-153 and MSID messages to up to 8 independent, unique interfaces. It is designed and qualified for the mounted environment. Supported clients include tactical radios, FBCB2/BFT, Laptop/Falconview, MRT’s and others.  

The newest addition to the family of D3 Devices can provide SAASM or M-code protected GPS.

Read about ED3 and how it helps support an Affordable Assured PNT Strategy for Military Ground Vehicles. Learn more about the Enhanced D3.


GPS Splitters will convey the GPS signal from one active GPS antenna to multiple GPS receivers. They will enable multiple devices requiring GPS to be connected to one antenna.  (See MS22 and MS24 splitters if redundant antennas are desired.)

GPSS has a complete line of splitters that are ruggedized, waterproof and EMI shielded. Made in the USA, they are designed to meet the rigorous qualifications highly desired by the military.  The standard line is ruggedized, EMI shielded and waterproof.  Special care has been taken to engineer GPS splitters with high IP3 and P1dB figures, allowing them to perform well in the presence of conflicting strong signals and essential for maintaining the integrity of the GPS signal.

MS Splitters (Military Specified Splitters) have been designed and/or tested to the following MIL standards:  MIL-STD-810, MIL-STD-1472,MIL-STD-202, MIL-STD-883,MIL-STD-704, MIL-STD-5400, MIL-STD-454, MIL-STD-1587, MIL-STD-461F, MIL-STD-1275. 


GPS retransmission systems designed by GPS Source for the military provide GPS coverage within any aircraft or ground vehicle.  This means any handheld military or commercial GPS receiver, precision airdrop guidance unit (JPADS) or Military Free Fall (MFF) receiver will acquire L1/L2 and GPS protected signals inside the aircraft or ground vehicle.  The Warfighter will have satellite connectivity and situational awareness prior to dismounting a vehicle or exiting an aircraft.

  • Eliminates Time to First Fix
  • Improves Situational Awareness
  • Gives Continual Grid Coordinate Availability
  • Combat Proven Core Technology

Recent Press


Robert Horton, CEO, presented a paper titled Enabling PNT at All Threat Levels during the Ground Vehicle Systems Engineering & Technology Symposium (GVSETS). GPS Source has self-funded the development of a comprehensive, integrated solution called SENTRySCOUT.  SENTRySCOUT combines multiple technologies to validate the GPS signal.

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