JAJ2-16P

dual Sixteen-Element Array

Integrated Navigation Anti-Jamming Unit

Product Specification

1. Overview

This document specifies the product specification requirements for the JAJ2-16P Integrated Navigation Anti-Jamming Unit (hereinafter referred to as the "Anti-Jamming Unit").

The anti-jamming unit is mainly composed of an array antenna, an anti-jamming processing module, a built-in receiver, and

supporting cables. It supports the reception, amplification, down-conversion, filtering, anti-jamming processing, and up-conversion output of signals at 16-channel BDS_B1, GPS L1 + L2, Galileo E1 frequency points or 16-channel BDS_B1, GPS L1 + L5, Galileo E1 frequency points.

The built-in receiver supports PVT solution output, with a power supply range of DC9V ~36V, and has the function of resisting 1~ 15 incoming broadband, narrowband, pulse, frequency sweep and other suppression interferences.

2. Product Composition

The 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)

Product Drawings of Anti-Jamming Unit

Figure 2-1 Product Drawings of Anti-Jamming Unit

Figure 2-2 Dimensions Drawing of Anti-Jamming Unit

3. Product Specification

3.1 Main Functions

1). Supports the reception of signals at the BDS_B1, GPS L1 + L2, Galileo E1 frequency bands or the BDS_B1, GPS L1 + L5, Galileo E1 frequency bands.

2). Supports to resist various jamming types such as broadband, narrowband, sweep, and pulse, as well as combinations ofthe above jamming, within the B1/L1/E1+L2 frequency bands or the B1/L1/E1+L5 frequency bands.

3). Supports soft bypass and Anti-jamming 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-jamming processing.

3.2 Main Technical Indicators

1) Frequency Point Anti-jamming Capability

(1)Number of Channels: 16 channels, supporting BDS_B1, GPS L1+L2, Galileo E1 frequency bands or BDS_B1, GPS L1+L5, Galileo E1 frequency bands;

(2)Anti-jamming types: Having the ability to resist various suppression interferences such as broadband, frequency sweeping and pulse in B1/L1/E1+L2 frequency band or B1/L1/E1+L5 frequency band, as well as the ability to resist the combination of the above interferences;

(3)Number of Anti-multiple Interferences: 1 to 15 interference sources in different directions;

(4)Anti-single Broadband Interference Capability: Interference-to-signal ratio ≥ 110dB@-130dBm;

(5) Anti-seven Broadband Interferences Capability: Interference-to-signal ratio ≥ 100dB@-130dBm;

(6)Anti-fifteen Broadband Interferences Capability: Interference-to-signal ratio ≥ 80dB@-130dBm;

(7) 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 clockwise

direction is "-".

2) RF Output

(1)RF Output Power: -55dBm~-70dBm;

(2)RF Impedance: 50 ohms;

(3)Output VSWR: ≤2.0.

3) Built-in Receiver Specifications

The built-in receiver supports receiving and resolving signals at B1, L1, and E1+L2 or B1, L1, and E1+L5 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: ≤70W.

3.3 External Interfaces

The antenna is equipped with two external interfaces:

1)1 pcs J30J power data interface, which is used for power supply and data commissioning. The power data interface is a J30J-25ZKP connector, with a total of 9PIN signal definitions as follows.

Table 3-1 Power Data Interface Definition Table

2) 1 pcs SMA-K RF output interface, used for outputting B1/L1/E1+L2 frequency band or B1/L1/E1+L5 frequency band signals after antenna amplification and anti-interference processing. The definition of the RF signal output interface is shown in the following table:

Table 3-2 Definition Table of RF Signal Output Interface

3.4 Structural Design

1)Dimensions: Length × Width × Height: 300mm × 300mm × 27.6mm(±0.5mm,without heat sink size).

2)The main body of the product is in natural aluminum color with conductive oxidation treatment, and the radome is in silver-gray / white color.

3)Product Weight: ≤2100g(without heat sink weight).

4)Mounting Interface: As shown in Figure 2-2, there are 4 mounting screw holes on the side of the antenna, which are 8 M2.5 screw holes with a depth of 2.4mm.

3.5 Reliability

1) Mean Time Between Failures (MTBF): ≥2000h;

2) Continuous Operating Time: ≥24h.

3.6 Environmental Adaptability

1) Operating Temperature: -40℃~+70℃, 10%90%RH (no condensation);

2) Storage Environment: -45℃~+85℃, 10%~95%RH (no condensation);

3) Waterproof Rating: Not lower than IP65.

3.7 Shock and Vibration

Shock Test: Execute in accordance with ISO 19453-3:2018 "Environmental Test Methods for Civil Small and Light

Unmanned Aircraft Systems - Part 3: Shock Test".

Vibration Test: Execute in accordance with ISO 5309:2023 "Vibration Test Methods for Civil Small and Light Unmanned Aircraft Systems".

4. Packaging

The packaging box is made of paper, with an internal shockproof and drop-resistant buffer design.

5. Installation Precautions

(1) The bottom surface of the anti-interference antenna is a metal heat dissipation surface. When installing, ensure that the bottom surface has good heat dissipation conditions. It is recommended to closely fit the bottom surface with other metal planes during installation to achieve better heat dissipation effects, or install it overhead to ensure air flow at the bottom.

(2) The top surface of the anti-interference antenna is the GNSS signal receiving antenna plane. To ensure good GNSS signal

reception, when installing the anti-interference antenna on the carrier, it is necessary to ensure that its top surface directly faces the open sky and is unobstructed.

(3) When the anti-interference antenna is installed inside the body for use, the part of the body corresponding to the top surface of the antenna must be made of wave-transmitting materials and have a wave transmission rate of no less than 92% in the

L-band.