AI-4L14L2
Anti-Jamming Antenna
The AI-4L14L2 anti-jamming antenna supports the reception of 4 channels of B1/L1 signals and 4 channels of L2 signals, with combined output after anti-jamming processing of the B1/L1 and L2 frequency signals. The antenna effectively suppresses wideband, narrowband, multi-tone, single-tone, sweep, pulse, and other suppression-type interferences at the B1/L1 and L2 frequencies. It includes a set of high-precision L1+L2 elements that provide dual-frequency high-precision signals for the receiver. It is mainly designed for vehicle-mounted low-cost applications and small-sized UAV platforms.

Features
Frequency Bands
- B1/L1 Reception Bandwidth: 1568±10MHz;
- L2 Reception Bandwidth: 1227±10MHz
Performance
- Dual-frequency high precision
- Dual-frequency anti-jamming
Power Consumption: ≤ 13W
| Performance | ||
|---|---|---|
| B1/L1 Anti-jamming Performance | Single interference resistance:≤110dB; | Triple interference resistance:≤ 95dB |
| L2 Anti-jamming Performance | Single interference resistance:≤105dB; | Triple interference resistance:≤ 90dB |
| Antenna Output Power | -50~-70dBm | |
| Physical | ||
| Power Supply and I/O Interface | J30J-9ZK | |
| Dimensions | 130*130*40mm | |
| Weight | 550g±20g | |
| Color | Gray | |
| Operating Temperature | -40℃ ~ +85℃ | |
| Storage Temperature | -55℃ ~ +85℃ | |
| Electrical | ||
| Input | +9~32V (default +24V) input, power consumption less than 13W | |
| Interfaces | ||
| X1: J30J-9ZK Interface Definition | ||
| No. | Name | Remarks |
| 1 | Power Input | +9V~+32V |
| 2 | Power Input | +9V~+32V |
| 3 | Power Ground | GND |
| 4 | Power Ground | GND |
| 5 | 232 Receive | RXD |
| 6 | 232 Transmit | TXD |
| 7 | NC | NC |
| 8 | NC | NC |
| 9 | NC | NC |
| X2: SMA - K (RF Output) | ||
