Photo courtesy of Department of Defense
Addressing the Limitations of the Aging DAGR Military GPS
In today’s rapidly changing battlefield, precise and reliable navigation is necessary. But many units and warfighters are still using the Defense Advanced GPS Receiver (DAGR) a device that was cutting-edge in the early 2000s but is now far behind the times. The DAGR is so outdated that it’s featured as a relic of combat operations in the National Museum of the Marine Corps.
Old technology is not inherently a problem. The M2 .50 caliber machine gun is one of the most amazing feats of weapon engineering in military history. Minus small changes, it still serves as a backbone weapon system in the military. However, the same is not true of the chips and electronics of the DAGR. This outdated technology poses challenges for U.S. military personnel and our allies. It’s time to shed light on why the DAGR is no longer enough and highlights the need for a modern, secure, and resilient navigation system.
The Problem with the DAGR
When the DAGR first launched it was a breakthrough. It provided encrypted GPS signals (P(Y)-code), ensuring secure navigation for military use. But as technology has advanced, and the DAGR is not only able to provide reliable support to warfighters in today’s contested environment.
Soldiers have long complained about the DAGR’s clunky and slow user interface and how hard it is to operate in stressful combat situations. The device lacks features that modern tools offer, such as advanced mapping or integration with situational awareness apps like the Android Team Awareness Kit (ATAK). It’s also bulky, drains power quickly, and relies entirely on GPS with no backup navigation systems. In environments where GPS is unavailable or unreliable, the DAGR simply does not cut it.
The Risk of Using Civilian GPS Devices
Because of the DAGR’s limitations, warfighters have turned to civilian GPS devices like the Garmin Foretrexs, GPS watches, and Android-based devices. These alternatives are compact, easy to use, and packed with practical navigation features. They are also vulnerable and made for civilian use. The risks compound when you start to look at how Russia is fighting in Ukraine.
While these devices might be convenient, consumer electron companies do not build with warfighters in mind. Civilian GPS devices rely on the unencrypted L1 signal, which is highly vulnerable to jamming and spoofing. In contested environments, where adversaries can easily disrupt or fake GPS signals, these devices are, at best, unreliable and at worst, have trained our forces to rely on equipment that will fail and endanger them. Civilian GPS devices also do not integrate with military systems. You cannot plug a Garmin into a vehicle or connect it to a laser range finer. This builds in friction, which, when combined with the fog of war, expands risk to our warfighters and their missions.
What the Military Needs Now
To meet the challenges of today’s combat environments, we need a new generation of military navigation devices. These systems must:
- Use resilient GPS technology, like M-code signals, to protect against jamming and spoofing.
- Be able to work in GPS-denied environments.
- Feature an intuitive, user-friendly interface that allows soldiers to focus on the mission, not the device.
- Integrate seamlessly with military tools and equipment.
- Be lightweight, rugged, and designed to withstand harsh conditions and fit in the pocket of combat load of a warfighter.
The Path Forward
The DAGR was a game-changer in its time, but that time has passed. Modern military operations demand tools that are secure, versatile, and capable of standing up to the challenges of contested environments.
By investing in modern navigation systems, the DoD and NATO forces can ensure that warfighters have the tools they need to succeed and stay safe. Upgrading our navigation technology is about ensuring our warfighters have what they need to be precise, lethal, and survive on the modern battlefield.\
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