A new anti-jam antenna system from Hexagon aims to keep airborne platforms connected to satellite navigation even when adversaries attempt to disrupt the signal.
Called GAJT-AE3, the antenna protects against interference across all major Global Navigation Satellite System (GNSS) constellations, offering full multi-constellation, multi-frequency coverage.
The antenna can create up to seven interference suppression zones per band, allowing platforms to maintain navigation even when multiple jammers are present.
The capability is packaged in a compact unit designed for integration across airborne platforms, including unmanned aerial vehicles, missiles, and military aircraft.
Hexagon said the technology is aimed at addressing the rising threat of jamming technologies, which have become increasingly common in modern conflict.
“This is a revolutionary expansion in our battle-proven anti-jam solutions designed specifically for space-constrained platforms,” said Stig Pedersen, president of the Aerospace & Defence Division at Hexagon.
“The GAJT-AE3 offers unparalleled signal coverage and multi-jammer direction finding for superior protection and heightened situational awareness.”
GAJT-AE3 in Detail
The system comes in two variants: a rail-mount version weighing 714 grams (25 ounces) and a bolt-mount version weighing 814 grams (28.7 ounces).
It requires 30 watts of power, operates on 16 to 36 volts direct current, and measures 180 by 140 by 25 millimeters (7 by 5.5 by 0.9 inches).
It supports navigation signals from multiple GNSS constellations, including GPS, GLONASS, Galileo, BeiDou, QZSS, and India’s NavIC.
Coverage also extends to Iridium positioning, navigation, and timing signals, along with satellite-based correction signals.
