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