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Single frequency four channel nano anti-interference module

Single frequency four channel nano anti-interference module

JAJ1-4 NANOMiniature Four-Element ArrayIntegrated Navigation Anti-Jamming UnitProduct Specification2026.04Table of Contents1 Overview2 Product Composition3 Product Specification3.1 Main Functions3.2 Main Technical Indicators3.3 External Interfaces3.4 Structural Design3.5 Reliability3.6 Environmental Adaptability3.7 Shock and Vibration4 Packaging5 Installation Precautions1. OverviewThis document specifies the product specification requirements for the JAJ1-4 Nano Integrated Navigation Anti-Jamming Unit (hereinafter referred to as the "AJU").The Anti-Jamming Unit is mainly composed of an array antenna, an anti-jamming processing module, a built-in receiver, andsupporting cables. It supports the reception, amplification, down-conversion, filtering, anti-jamming processing, and up-conversion output of 4-channel signals at BDS B1, GPS L1, and Galileo E1 frequency points.The built-in receiver supports PVT (Position, Velocity, Time) solution output. It has a power supply range of DC9V~36V and is capable of resisting 1 to 3 incoming interferences of various types such as broadband, narrowband, pulse, and frequency sweep suppression.2. Product CompositionThe product consists of an anti-jamming unit has test cables, and random documents.The composition details are as follows:Table 2-1 Product Configuration (Single Set of Product)Serial NumberProduct Configuration itemnumberNote1Anti-Jamming Unit1 pcs50mm×50mm2Connect Cable/Optional, not configured by default, customizable3Built-in navigation receiver1 pcsuBlox NEO-M9N4G1 frequencies/Optional, not supported by default, if chosen supported G1,the power consumption will Increase.5Screws1 set1 set contains 4 pcs M2.5×2.4 screwsProduct Drawings of Anti-Jamming UnitFigure 2-1 Product Drawings of Anti-Jamming UnitFigure 2-2 Dimensions Drawing of Anti-Jamming Unit3. Product Specification3.1 Main Functions1). Supports reception of BDS B1, GPS L1, and Galileo E1 frequency signals.2). Possesses the capability to resist various suppression interferences such as wideband, narrowband, sweep, and pulse, as well as combinations ofthe above interferences within the BDS B1, GPS L1, and Galileo E1 frequency bands.3). Supports soft bypass and anti-interference mode output, which users can flexibly select and switch via the serial port.4). Built-in receiver, capable of outputting positioning solution results after anti-interference processing.3.2 Main Technical Indicators1) Frequency Point Anti-jamming Capability(1)Number of Channels: 4 channels, supporting BDS B1, GPS L1, and Galileo E1 frequency bands;(2)Anti-jamming Types: Capable of resisting various suppression interferences such as broadband, frequency-sweeping, and pulse in B1/L1/E1 frequency bands, as well as the combination of the above interferences;(3)Number of Anti-multiple Interferences: 1 to 3 interference sources in different directions;(4)Anti-single Broadband Interference Capability: Interference-to-signal ratio ≥ 95dB@-130dBm;(5)Anti-three Broadband Interferences Capability: Interference-to-signal ratio ≥ 80dB@-130dBm;(6)Anti-jamming Spatial Range: Azimuth 0°~360°, Elevation -10°~90° .Note: The elevation angle is defined as the angle between the spatial vector of the anti-jamming unit and the horizontal plane, with the body coordinate system y-axis as the pitch axis, the counterclockwise direction is "+", and the clockwisedirection is "-".2) RF Output(1)RF Output Power: -55dBm~-70dBm;(2)RF Impedance: 50 ohms;(3)Output VSWR: ≤2.0.3) Built-in Receiver SpecificationsThe built-in receiver supports receiving and resolving signals at BDS B1, GPS L1, and Galileo E1 frequency points, and outputs positioning results through a data interface:(1)Positioning Accuracy: Horizontal error ≤7m, vertical error ≤9m (95%, PDOP≤4);(2)Velocity Measurement Accuracy: ≤0.2m/s (95%).4) Antenna Port Burnout Resistance: ≥10W.5) Operating Voltage Range: DC9V~36V.6) Average Power Consumption: ≤6W.3.3 External Interfaces1) 1 pcs J30J power data interface, which is used for power supply and data commissioning. The power data interface is a J30J-9ZK connector, with a total of 9PIN signal definitions as follows.Table 3-1 Power Data Interface Definition TableConnector PinNumberSignal DefinitionSignal DescriptionInstructions1+9V~+36VPower InputUnit Power Supply2+9V~+36VPower Input3GNDPower Ground4GNDPower Ground5RS422 RX-RS422 ReceiveData Transmission6RS422 RX+RS422 Receive7RS422 TX-RS422 Transmit8RS422 TX+RS422 Transmit9GNDPower Ground2) 1 pcs SMA-K RF output interface, which is used for outputting BDS B1, GPS L1, and Galileo E1 frequency signals after antenna amplification and anti-interference processing. The definition of the RF signal output interface is shown in thefollowing table:Table 3-2 Definition Table of RF Signal Output InterfaceConnectorModelSignal Output AmplitudeSignal DescriptionInstructionsSMA-K-55dBm~-70dBmRadio FrequencyUpconversion OutputOutput B1/L1/E1 frequency signal3.4 Structural Design1) Dimensions: Length × Width × Height:

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