Defense GAJT-410ML
™
GPS ANTI-JAM TECHNOLOGY
(GAJT
®
) FOR SMALLER PLATFORMS
JAMMING AND INTERFERENCE ARE HERE TO STAY
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.
BATTLE PROVEN IN SMALLER AND LIGHTER ENCLOSURE
The GAJT-410ML is a new design that builds on our legacy, battle-proven anti-jam
technology in a smaller enclosure. It combines an antenna array and null forming
electronics into an enclosure that is suitable for installation on a wide range of land
vehicles.
EASY TO INTEGRATE
GAJT-410ML is designed for size constrained applications where it is preferable to
mount the combined antenna and electronics outside the vehicle. The GAJT-410ML
utilizes the existing Radio Frequency (RF) cable to supply data and power directly to
the unit to reduce the need for costly platform modifications.
SITUATIONAL AWARENESS
By installing the Power Injector Data Converter (PIDC™), users can access the
jammer status and direction finding capabilities of the GAJT-410ML across the single
RF cable. The PIDC can be supplied in an enclosure or as a board and can be easily
installed inside land vehicles. It is available to license for installation into third-party
equipment.
HOW IT WORKS
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-410ML is a standard Radio
Frequency (RF) feed, suitable for input to legacy GPS receivers. Clean DC power is
supplied via the single RF cable when using the PIDC. Integration to your GPS receiver
is seamless.
BUILT FOR THE FUTURE
The wide bandwidth ensures compatibility with M-Code GPS.
+
Low cost anti-jam protection
designed for smaller platforms
+
Easy to integrate
+
High performance anti-jam
protection in dynamic multi-
jammer scenarios
+
Compatible with legacy and modern
GPS receivers
+
Provides situational awareness
through the PIDC
FEATURES
+
Aordable protection for GPS
position, velocity and time
+
Up to 40 dB of additional
anti-jamming protection
+
Simultaneous L1 and L2 protection
+
Adaptive digital nulling
PRELIMINARY
For more information about GAJT, visit
www.novatel.com/GAJT or email
GAJT@novatel.com
BENEFITS
PERFORMANCE
GNSS (GPS) Signals
Center Frequency
L1 1575.42 MHz
L2 1227.6 MHz
Bandwidth ±12 MHz (centered on L1/L2)
INTERFERENCE REJECTION
Simultaneous L1 and L2
Typical Wideband Suppression 40 dB
Number of Simultaneous Nulling Directions 3
ANTENNA ARRAY
Built in 4 Element CRPA
GAJT-410 CRPA PORTS
1 x SMA (50 Ω) RF/Data/Power
PIDC PORTS
1 x ODU 12 pin female Data/Power
2 x SMA female RF
PHYSICAL AND ELECTRICAL
Power (system)
Power Consumption 19 W
Input Voltage +10 to +28 VDC
GAJT-410ML CRPA
» Dimensions 139.8 diameter × 95 mm
» Weight 1.7 kg
GAJT-410ML Mounting
» Flush Mount
» Optional NATO Mount
» Optional Pole Mount
GAJT-410ML Hardware Color Options
» Green
» Tan
PIDC
» Dimensions 85.5 W × 85 L × 31.5 H mm
» Weight 450 g
PIDC Mouting
» Four Mounting Bolts (user supplied)
ENVIRONMENTAL
Temperature
Operating -40°C to +71°C
Storage -55°C to +85°C
Humidity MIL-STD-810G(CH1) 507.6,
Proc. II
Altitude MIL-STD-810G(CH1), 500.6
Corrosion MIL-STD-810G(CH1), 509.6
MIL-STD-810G(CH1), 518.2
Vibration MIL-STD-810G(CH1), 514.7
Shock MIL-STD-810G(CH1), 516.7
Water MIL-STD-810G(CH1), 512.6
IEC 60529 IPX9K
Sand & Dust MIL-STD-810G(CH1), 510.6
Solar Radiation
MIL-STD-810G(CH1), 505.6
COMPLIANCE
CE, FCC, WEEE
ACCESSORIES
» Combined data, RF and power cable
EXPORT APPROVALS
Canadian Controlled Goods
For more information about GAJT, visit
www.novatel.com/GAJT or email
GAJT@novatel.com
novatel.com
sales@novatel.com
1-800-NOVATEL (U.S. and Canada)
or 403-295-4900
Europe 44-1993-848-736
SE Asia and Australia 61-400-883-601
Version 0G PRELIMINARY
Specifications subject to change without notice.
©2019 NovAtel Inc. All rights reserved.
NovAtel and GAJT are registered trademarks of NovAtel Inc.
PIDC is a trademark of NovAtel Inc.
D22532 May 2019
Printed in Canada.
GAJT-410ML
™
