GAJT-710MS

Interference, jamming and spoofing are growing threats in the marine sector. Whether intentional or unintentional, interference can seriously degrade PNT availability to the point of total solution denial. Jammers create excessive radio frequency (RF) noise, overpowering low power GPS signals and saturating electronics in a GPS receiver front end. Protection of GPS/GNSS signals is necessary for applications requiring assured positioning, navigation and timing (APNT) for continuous operations.

NovAtel

Calgary, CA

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Description

GPS Anti-Jam Technology (GAJT) provides a layer of defense against RF interference and jamming attacks. With jammer direction-finding capabilities, enhanced performance and a silent mode feature to avoid detection, the GAJT-710MS is an industry-leading APNT solution.

Features

Affordable protection for GNSS position, velocity and time
40 dB of interference suppression
Single enclosure system
Simultaneous GPS L1/L2, QZSS L1/L2, SBAS L1 and Galileo E1 protection
Supports M-Code on GPS L1 and L2
Adaptive digital nulling
Jammer direction-finding
Silent mode capability
Marine-hardened enclosure

Benefits

Commercial off-the-shelf (COTS)
Low cost anti-jam protection for marine vessels
Easy to integrate, ideal for retrofitting
Anti-jam protection in dynamic multi-jammer scenarios
Compatible with legacy and modern GNSS receivers, including M-Code
Provides situational awareness
Reduced thermal signature

Low cost, small form factor

The GAJT-710MS from NovAtel combines a CRPA and null forming electronics into a marine-hardened enclosure that is suitable for installation on a wide range of marine vessels, from small patrol boats to large carriers.

Patented leading-edge technology

Interference mitigation is achieved by applying proprietary digital beamforming algorithms to the signals, creating dynamic nulls to give protection against a wide range of interference sources.

How it works

GAJT mitigates GNSS 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, suitable for input to legacy GPS receivers.

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.

Do you have questions about this product?

Questions about price, availability, and/or retailers
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Specifications

Power: Min. operating power [V]

28

Max. operating power [V]

10

Typical consumption [W]

25

Connection/cable for power

TNC female

Operational: Design keywords

Anti-Jam, Rugged

Mounting

Screw

Amplifier: Amplifier

Y

Noise figure [max dB]

3

Tracked signals: Tracked satellite signals

GPS

Type of GPS measurements

L1, L2

Signal gain [dB]

30

Type of GLONASS measurements

Type of Galileo measurements

Type of Beidou measurements

Type of SBAS measurements

Connectivity: TNC female

Y

Other Connectors

Power: MIL-C-26482, Series 2. RF: TNC (Female). Service: MIL-DTL-38999, Series 3.

Environment: Operating temperature: min. [°C]

-40

Operating temperature: max. [°C]

71

Humidity resistance

MIL-STD-810G 507.5, Proc. II

Water sand and dust proof

MIL-STD-810G, IEC 60529 IPX6

Shock and vibration proof

Shock: MIL-STD-810G, 516.6. Vibration: MIL-STD-810G, 514.6.

WEEE compliance

Y

Max operational altitude [m]

3600

General: Height [m]

0.12

Type

Marine

Depth [m]

0.29

Width [m]

0.29

Total Weight [kg]

7.5

Certifications

CE, FCC

Housing and finish material

Hardened enclosure

More information: Distinguishable features

Affordable protection for GPSposition, velocity and time. Up to 40 dB of additionalanti-jamming protection. Single enclosure system. Simultaneous GPS L1 and L2 protection. Adaptive digital nulling.