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AJS-8L1/L5-230X + 16-Element CRPA System

Highly Integrated Anti-Jamming GNSS System

Integrates an 8-channel dual-band CRPA antenna array, adaptive anti-jamming processing, and a GNSS receiver within a single rugged enclosure.

Integrated Low-SWaP Design

Compact 230 × 230 × 24 mm housing with a total weight of ≤1,250 g, combining dual-band anti-jamming and GNSS positioning in a highly integrated system.

Multi-Constellation Dual-Band GNSS

Supports GPS L1/L5, Galileo E1, and BeiDou B1, providing multi-constellation GNSS reception and dual-frequency positioning capability.

Advanced Anti-Jamming

Suppresses up to 7 simultaneous jammers per frequency band, with a specified anti-jamming capability of up to 100 dB J/S. Supports adaptive mitigation of broadband, narrowband, pulsed, sweep-frequency, and chirp interference.

The AJS-8L1/L5-230X is a lightweight, high-performance GNSS anti-jamming terminal that integrates an 8-channel dual-band (L1/L5) antenna array, an adaptive anti-jamming module, and an UBLOX receiver into a single rugged enclosure.

Supporting GPS L1/L5, GAL E1, and BDS B1, the unit provides active spatial defense against multi-source suppression interference. Its advanced adaptive filtering and optimized antenna geometry ensure exceptional signal integrity and continuous high-precision positioning in RF-contested environments.

Advanced CRPA Integrated GNSS Receiver System

Fully integrated architecture combining the CRPA antenna array, adaptive anti-jamming processing, and GNSS receiver within a compact unit, simplifying system integration.

Dual-Band GNSS Architecture

Supports L1- and L5-band GNSS operation through a dual-band antenna architecture, providing multi-frequency GNSS reception with a compatible receiver.

Anti-Jamming Technology

Adaptive spatial filtering and nulling algorithms suppress multiple interference sources while maintaining reliable GNSS signal reception.

Tactical High-Performance

Suppresses up to 7 simultaneous jammers per frequency band, delivering a deep nulling up to 100dB J/S.

Broad-Spectrum Interference Mitigation

Designed to mitigate broadband, narrowband, pulsed, swept-frequency, and chirp interference signals in complex RF environments.

Field Resilience

Ruggedized design tested for extreme vibration, thermal shock, and high-dynamic flight.

Adaptive Null-Steering Against Multi-Source Jamming

The 16-element CRPA array dynamically identifies jamming signals and creates “Deep Nulls” in their direction. Even with multiple or mirrored jammers, the antenna maintains a high-gain beam toward GNSS satellites, ensuring uninterrupted PNT (Position, Navigation, and Timing) in contested environments.

RF & Performance Specifications
Antenna Elements 16 Elements (8×L1+8×L5)
Frequency GPS L1/L5, BDS B1/B2a, Galileo E1/E5a
Impedance 50Ω
VSWR ≤2
Jammer / Signal (J/S) ≥100dB (Single jammer), ≥85dB (Seven jammers)
Number of Jamming Sources Up to 7 per frequency band
Burnout Resistance 10W
GNSS Receiver UBLOX F9P (Optional)
Protocol NMEA 0183 or UBX
Electrical Specifications
Voltage 12 ~ 34VDC
Power Consumption ≤25W
Mechanical & Environmental
Dimensions L230mm × W230mm × H24mm
Weight ≤1250g
Connector J30J-9ZK (Power/Data), SMA-K (RF)
Waterproof Rating IP65 (Mounting)
Mounting 4ר6.5mm mounting holes
Operating Temperature -40°C to +70°C
Storage Temperature -55°C to +85°C
RF & Performance Specifications
Antenna Elements16 Elements (8×L1+8×L5)
FrequencyGPS L1/L5, BDS B1/B2a, Galileo E1/E5a
Impedance50Ω
VSWR≤2
Jammer / Signal (J/S)≥100dB (Single jammer), ≥85dB (Seven jammers)
Number of Jamming SourcesUp to 7 per frequency band
Burnout Resistance10W
Number of Jamming SourcesUp to 7 per frequency band
GNSS ReceiverUBLOX F9P (Optional)
Protocol NMEA 0183 or UBX
Electrical Specifications
Voltage12 ~ 34VDC
Power Consumption≤25W
Mechanical & Environmental
DimensionsL230mm × W230mm × H24mm
Weight≤1250g
Connector J30J-9ZK(Power/Data), SMA-K(RF)
Waterproof RatingIP65 (Mounting)
Mounting4ר6.5mm mounting holes
Operating Temperature -40°C to +70°C
Storage Temperature -55°C to +85°C

Interface Definition

Power / Data Interface:
The power and communication interface uses a J30J-9ZK connector. DC power input and dual-channel TTL serial bus communication for control/status integration.

Pin Name Type Description
#1, 2 Positive Power DC 12–34V input
#3, 4 Negative Power Power ground
#5 TXD0 Output Anti-jamming serial TTL output
#6 RXD0 Input Anti-jamming serial TTL input
#7 RXD1 Input Receiver serial TTL input
#8 TXD1 Output Receiver serial TTL output
#9 GND Power Ground

Integration & Installation Overview

Applications

UAV

For compact aerial platforms requiring low-SWaP anti-jamming capability and stable GNSS performance under contested RF conditions.

UGV

Suitable for unmanned ground systems operating in interference-prone, urban, or low-elevation jamming environments.

USV

Designed for maritime and surface platforms requiring robust GNSS continuity in complex electromagnetic environments.

Applications

UAV

UGV

USV

For compact aerial platforms requiring low-SWaP anti-jamming capability and stable GNSS performance under contested RF conditions.

Suitable for unmanned ground systems operating in interference-prone, urban, or low-elevation jamming environments.

Designed for maritime and surface platforms requiring robust GNSS continuity in complex electromagnetic environments.

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