3.1 major function
1 ) Supports receiving signals from BDS_B1, GPS L1, and Galileo E1 frequency bands.
2 ) It has the ability to suppress various types of interference, including broadband, narrowband, sweep frequency, and pulse interference, in the B1, L1, and E1 frequency bands, as well as the capability to resist combinations of these interferences.
3 ) Supports both soft direct-through and anti-interference modes, allowing users to flexibly switch between them via the serial port.
4 ) The built-in receiver can output the positioning solution after anti-interference processing.
3.2 the key technical indexes
1) frequency immunity
（1）Channel count: 16 channels, supporting BDS_B1, GPS L1, and Galileo E1 bands.
（2）Anti-jamming capability: Capable of suppressing various interference types including broadband, sweep, and pulse in the B1/L1/E1 frequency bands, with resistance to combinations of these interference types.
（3）The number of anti-interference is 1～15 different direction interference sources;
（4）Anti-multipath interference capability: dry signal-to-noise ratio (DSNR) ≥110dB@-130dBm.
（5）Anti-three-band jamming capability: dry signal-to-noise ratio (DSNR) ≥95dB@-130dBm.
（6）Anti-5G wideband jamming capability: dry signal-to-noise ratio (DSNR) ≥80dB@-130dBm.
（7）Anti-jamming range: azimuth 0°~360°, pitch-10°~90°.
Note: The pitch angle is defined as the angle between the space vector of the anti-jamming source and the anti-jamming integrated unit and the horizontal plane, with the y-axis of the aircraft system serving as the pitch axis, where counterclockwise direction is marked as '+' and clockwise direction as '-'.
2) radio frequency output
（1）The output power of radio frequency is-55dBm~-70dBm.
（2）RF impedance: 50 ohms;
（3）Output standing wave: ≤2.0.
3) Built-in receiver metrics
The built-in receiver supports signal reception and calculation at B1, L1, and E1 frequencies, and outputs positioning results through the data interface.
（1）Positioning accuracy: horizontal error ≤7m, vertical error ≤9m (95% confidence, PDOP ≤4).
（2）Speed measurement accuracy: ≤0.2 m/s (95% confidence interval).
4) The surface fire resistance of the antenna port is ≥10W.
5) Operating voltage range: DC9V to 36V.
6) Average power consumption: ≤30W.
3.3 peripheral interface
The antenna has two external interfaces:
1) One J30J power data interface for power supply and data debugging, featuring a J30J-15ZKP connector with 15 pins. The signal definitions are as follows.
