The Key Point of Modern Electronic Warfare - GPS Signal Jammers

In modern warfare, electronic signals are a very important part. The stability of the signal is essential to combat. So countries in the study of how to protect their own signal stability at the same time, will find ways to interfere with the signal of other countries. That's why GPS jamming devices are becoming more and more mainstream in future wars. Whether it can gain the upper hand in jamming electronic warfare is also the key to future wars
North Korea has developed a powerful GPS jammer that can disrupt GPS (Global Positioning System) satellite signals over a range of “more than 100 kilometers,” according to a South Korean government report, Yonhap News said Tuesday.
News of the GPS jamming equipment was included in a report submitted to South Korea’s parliamentary committee on defense this week, the news agency said.
The South Korean capital lies about 50 kilometers from the border region so a jammer with such range could disrupt or wipe out GPS signals in Seoul and the surrounding area. The city and region up to the border is littered with military installations and equipment, a lot of which makes use of GPS satellite positioning signals.

Applications of GPS jammer in future war

The U.S. Navy has entered the final phase of development of the Next Generation Jammer (NGJ) pod that will replace the ALQ-99 that has been in use since the Vietnam War. The new electronic attack pod matches advanced electronic-attack technology developed by raytheon, that combines high-powered, agile, beam-jamming techniques with cutting-edge, solid-state electronics.
The AN/ALQ-99 Tactical Jamming System is currently integrated on the EA-18G GROWLER and EA-6B Prowler aircraft operated by the US Navy and Marine Corps. Both aircraft are currently in service, but only the F/A-18G is expected to be in service beyond the mid 2020s. Therefore, the new pod is developed exclusively for the Growler.
In terms of isotropic radiated power, the Next Gen GPS Blocker is “about 10 times the power of what we typically put out in the ALQ-99,” he said. As for capacity, “ballpark, quadruple the number of assignments it can handle” as well as the ability to rapidly beam-switch from “target to target to target” nearly instantaneously.
The next war is going to be fought in the electromagnetic spectrum,” Rear Adm. Michael Manazir, the Navy’s director of Air Warfare, told members of Congress in April, while providing an update on the status of the Next Gen Jammer.
The Next Gen Jammer will respond to these factors with higher equivalent isotropically radiated power, increased number of assignments, digital-based waveform modulations, coherent countermeasures, wideband spectrum, clear spectral output and open architecture, among others.