• Forsberg Services Ltd. Richmond House, White Cross Ind Est/South Rd, Lancaster, UK


GPS technology has revolutionized modern warfare. Military organizations regularly depend on satellite technology for accurate positioning, timing and communications.


GAJT Brochure

Defense-Brochure V1A

GPS receiver technology relies on signals broadcast from satellites orbiting 20,000 km above the earth at approximately -163 dBW or about the strength of a single Christmas tree bulb. The low power of this transmission makes the signals vulnerable to being swamped by interfering signals from both malicious and non-malicious sources.

A simple 1 watt jammer, readily available on the Internet, can overpower GPS signals within a large area, denying a position solution from the victim receiver.

GPS anti-jam technology is quickly evolving. Until recently, size and cost considerations meant anti-jam systems were only feasible for extremely expensive assets, such as airplanes, helicopters and aircraft carriers. NovAtel’s compact and affordable GAJT® anti-jam antenna:


  • Nullifies jammers, ensuring the satellite signals required to compute precise position will always be available
  • Provides anti-jam performance comparable to large, multi-component Controlled Reception Pattern Antenna (CRPA) systems at a significantly lower cost
  • Integrates easily into new military vehicle platforms or can be retrofitted with GPS receivers and vehicle navigation systems on existing and legacy fleets
  • Is a commercial off-the-shelf product, so it can be deployed quickly for urgent operational requirements.


GAJT (pronounced “Gadget”) is the first single unit GPS anti-jam antenna appropriate for use with military land vehicles, networks and timing infrastructure. GAJT nullifies jammers, ensuring satellite sig…


Jamming and interference, whether intentional or unintentional, can seriously degrade GPS position, navigation and time availability – even to the point of total solution denial. Jammers create excessive…


The GAJT-AE-N® variant provides the antenna electronics for a Controlled Reception Pattern Antenna (CRPA) in a custom enclosure system. Downloads GAJT-AE-N v0N Who is it For? GAJT-AE-N i…