GAJT-710MS
2Pages

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Catalog excerpts

GAJT-710MS - 1

BENEFITS • Low cost anti-jam protection for ships and boats • Easy to integrate, ideal for retrofitting • Anti-jam protection in dynamic multi-jammer scenarios • Compatible with VERIPOS receivers 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 noise, overpowering the low power GPS signals and saturating the electronics in a GPS receiver front end. Methods are needed to suppress this interference so your GPS receiver continues to operate and provide reliable positioning. LOW COST, SMALL FORM FACTOR Until now, the high cost and large size of Controlled Reception Pattern Antennas (CRPAs) has had limited use in the marine market. The GAJT-710MS CRPA from VERIPOS combines an antenna array and null forming electronics into a marine hardened enclosure that is suitable for installation on a wide range of marine vessels, including DP drill rigs, construction, survey and seismic vessels. LEADING EDGE TECHNOLOGY The system uses NovAtel's Pinwheel® antenna array to receive GNSS signals in the L1 and L2 bands. Interference mitigation is achieved by applying proprietary digital beamforming algorithms to the signals, creating dynamic nulls to give protection against narrowband and broadband interference sources. Integration to your VERIPOS receiver is seamless. GAJT mitigates interference by creating nulls in the antenna gain pattern in the direction of jammers, providing significant anti-jam protection even in dynamic multi-jammer scenarios. The output of the GAJT-710MS is a standard Radio Frequency (RF) feed. BUILT FOR THE FUTURE GAJT protects L1 and L2 GPS signals. The wide bandwidth of the GAJT-710MS ensures future compatibility with M-Code GPS. FEATURES • Affordable protection for GPS position, velocity and time • Up to 40 dB of additional anti-jamming protection • Single enclosure system • Simultaneous GPS L1 and L2 protection • Adaptive digital nulling

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GAJT-710MS - 2

Performance GNSS (GPS) Signals Center frequency L1 1575.42 MHz Controlled Reception Pattern Antenna (CRPA) Number of elements Bandwidth Noise figure LNA gain VSWR RF output Interference Rejection Simultaneous L1 and L2 Interference suppression 40 dB (typical) Number of simultaneous nulling directions 6 Physical and Electrical Water MIL-STD-810G, 512.5 IEC 60529 IPX6 Sand and Dust MIL-STD-810G, 510.5 Salt Fog MIL-STD-810G, 509.6 Submersion IP67 Vibration MIL-STD-810G, 514.6 Shock MIL-STD-810G, 516.6 Compliance CE, FCC, WEEE Connectors Power RF Service Export Approvals Canadian Controlled...

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