Train Against GNSS Jamming Without Transmitting Anything

Force Effect has launched PARALLAX, a GNSS threat simulator that lets forces train against satellite navigation jamming and spoofing on live exercises without putting a single watt over the air.

GNSS interference is common on operations but rare on training areas, where jamming requires airspace coordination and regulatory approval, according to the company. Most units never practise against it.

PARALLAX fits between a platform’s GNSS antenna and receiver, mixing the real satellite signal with controlled jamming or spoofing across any GNSS constellation, so nothing is radiated. It works with any GNSS receiver on any platform without integration work.

Planners place virtual jammers on a map and set their power, waveform and timing. Each unit models the signal path to every jammer, including terrain, so a moving platform’s navigation degrades, drops out or is pulled off course.

Staff can adjust every unit from one workstation, and an API connects PARALLAX to wider exercise management systems.

“Every recent conflict has shown that if you depend on GNSS, someone will try to take it away from you. Most forces only find out how their kit and their people cope when it happens for real. PARALLAX lets them find out on exercise instead, with no spectrum clearances to chase and no risk of jamming anyone else,” said Josh Sims, Managing Director, Force Effect.

Heading to the Interservice/Industry Training, Simulation and Education Conference (I/ITSEC) 2026? Visit Force Effect at Booth 1637 to learn more. I/ITSEC takes place at the Orange County Convention Center in Orlando, Florida, from 30 November,