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GPS Anti-Jam Technology

 

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


Downloads

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:

Highlights

  • 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®-710ML

    GAJT®-710ML

    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...
    GAJT®-710MS

    GAJT®-710MS

    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...
    GAJT®-AE-N

    GAJT®-AE-N

    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...