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ST100-12V-4VH Anti-Jamming Module
Product Code: ST100-12V-4VH
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ST100-12V-4VH Anti-Jamming Module
Description
1. Product Profile
This module is ST B 1L 1-100-12V, which is an anti-interference terminal with 100mm diameter. It mainly serves small and medium-sized UAVs, protecting user terminals from all kinds of unintentional interference and intentional attacks, greatly improving the security of PNT information.
1.1. Product Characteristics
- With interference power detection function, facilitating interference calibration, complete device joint tests, etc.
- Supports secondary development for spectrum monitoring, histogram analysis, and other processing.
- Supports 4-array anti-interference.
- Built-in navigation and positioning module, outputs positioning information according to the NEMA 0183 protocol.
2. Features
-
Capacity of resisting disturbance:
- Single-directional interference: ≥ 85 dBc
- Multi-directional interference: ≥ 70 dBc
-
Interference Type:
- Band-limited Gaussian white interference, spread frequency matching spectrum interference
- Pulse interference, sweep interference
- Mixed interference
- Anti-interference airspace: orientation: 0° ~ 360°, angle of elevation: -30° ~ 90°
- Volume: (100 ± 0.5) mm x (100 ± 0.5) mm x (25 ± 0.5) mm
- Power consumption: 7.2W (room temperature, including positioning module)
- Weight: <300g
3. Physical Dimensions and Installation
100mm x 100mm x 25mm. The four corners of the whole machine are the mounting holes. Fixation by the four M3 screws to the platform vector is indicated.
During installation, we need to ensure the radome faces up. If placed in the platform carrier, permeable wave material should be used above the product.
Figure 3-1. Physical Dimensions and Installation Holes
4. Interface Specification
4.1. Electrical Interface Description
Table 4-1. Connector Summary
| Order No. | Code Name | Connector Model | Functional Description |
|---|---|---|---|
| 1 | data | J30J-9ZKP | +12V power supply input, serial port |
Table 4-2. Data Interface Pin Definition
| Pipe Foot No. | Definition | Remarks |
|---|---|---|
| 1/2 | VCC 12V | Source |
| 3/4 | GND | Ground |
| 5 | UART_TXD 1 | Upgrade the serial port, 232 level |
| 6 | UART_RXD 1 | Upgrade the serial port, 232 level |
| 7 | UART_DGND | Ground |
| 8 | UART_TXD 2 | Positioning module serial port, TTL level |
| 9 | UART_RXD 2 | Positioning module serial port, TTL level |
4.2. RF Signal Characteristics
- Output signal frequency: B1\L1
- Power in the output signal band: -65 ± 1 dBm
- Output impedance: 50 Ohms
4.3. Physical Interface Description
Table 4-3. Physical Connectors
| Order No. | Code Name | Connector Model |
|---|---|---|
| 1 | radio frequency interface | SMA-JYD |
| 2 | data interface (apolegamy) | 3-pin DuPont line, red/white/black, corresponds to the positioning serial port UART_TXD 2, UART_RXD 2, UART_DGND respectively | SH 1.0 plug of 6pin, consistent with Pixhawk open-source flight control interface | Other interface forms require user transfer. |
NOTE: At delivery, the data interface can choose one of DuPont line or SH 1.0 plug. Other interface forms require the user to transfer by himself.
4.4. Connection Relationship Description
The electrical signal connection of the product and the platform carrier is connected by low-frequency data mode, replacing the conventional positioning terminal.
In the RF signal access mode, this product replaces the conventional active antenna.
Figure 4-1. Connection Diagram
5. Notes for Docking with Flight Control
This product has already been connected with the open-source flight control Pixhawk and the self-research flight control of IBC, and the interfaces of the two flight controls are different.
| Flight Control | Configuration Notes |
|---|---|
| Open-source flight control Pixhawk |
The flight control terminal needs to be configured in NEMA working mode. In the Mission Planner software interface, select Configuration / Debug, select the GPS option in All Parameters, and set the GPS_TYPE label value to 5, which is the NEMA protocol. Finally, click on Write Parameters to save the changes. After factory configuration, the information required by Pixhawk flight control, including GGA, RMC, VTG, RMV, etc., will be available. The NEMA protocol statement for output can also be configured by the user. |
| Beijing creates horizontal flight control | The hex system protocol was used for data transfer. The anti-interference terminal firmware automatically outputs the data required for transverse flight control after factory configuration. |
6. Example of Positioning Module Protocol Configuration
6.1. PIXHAWK Open-source Flight Control
Step 1: Configure the positioning module. Through the TTL to USB conversion line connected to the personal computer, use the serial port debugging assistant software to send configuration instructions, and save. You must check "return line" when sending instructions.
Table 6-1. PIXHAWK Configuration Instructions
| Instruction | Meaning |
|---|---|
| unlogall | Stop all protocol output |
| log gngga ontime 0.2 | 0.2s, interval output GGA, interval minimum can be configured as 0.1 |
| log gnrmc ontime 0.2 | 0.2s, with the interval output RMC |
| log g p vtg ontime 0.2 | 0.2s, with the interval output VTG |
| log pgrmv ontime 0.2 | 0.2s, with the interval output RMV |
| log gp gsv ontime 0.2 | 0.2s, interval output GSV |
| SAVECONFIG | Maintain the configuration and transmit the data following the above instructions |
NOTE: The above instructions only need to be configured once, and the subsequent boot-up automatically sends the data according to the above instructions.
Step 2: Connect the 3-foot DuPont line: white line TX to the RX of flight control, red line RX to the TX of flight control, the black GND is connected to the GND of flight control.
6.2. IBC Flight Control
Step 1: Configure the positioning module. Through the TTL to USB conversion line connected to the PC, use the serial interface debugging assistant to send configuration instructions, and save.
Table 6-2. IBC Flight Control Configuration Instructions
| Instruction | Meaning |
|---|---|
| unlogall | Stop all protocol output |
| LOG COM1 BESTPOSB ONTIME 0.2 | Output position information at the 0.2-s interval |
| LOG COM1 BEST VEL B ONTIME 0.2 | Output speed information at the 0.2-s interval |
| LOG COM1 PSRDOPB ONTIME 0.2 | The 0.2-s interval of the output accuracy information |
| SAVECONFIG | Maintain the configuration and transmit the data following the above instructions |
Step 2: Connect the 3-foot DuPont line: white line TX to the RX of flight control, red line RX to the TX of flight control, and black GND to the GND of flight control.
7. Use Summary
In general, this product is relatively simple to use. The following main steps:
- Fixed. Install fixation with M3 screws.
- Supply electricity. Use XT30 power supply, supply voltage 12V, not more than 15V.
- Position the data connections. Connect the DuPont line TTL serial port of this product to the flight control GNSS serial port.
8. Disclaimer
This product is designed to improve the security of satellite navigation. Please comply with the relevant laws and regulations during the use. The use of this product for any illegal activities is not related to this product.
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