KXAT870E CRPA

KXAT870E_8B1L1E1 is a CRPA (Controlled Reception Pattern Antenna) protected antenna, capable of receiving, amplifying, down-converting, filtering, and processing 8-channel BDS_B1, GPS_L1, and GALILEO_E1 frequency signals. It operates on +18V to +32V power supply and consists of an antenna array, an RF module, and a processing module. It features protection against abnormal electromagnetic signals from seven directions, suitable for scenarios sensitive to electromagnetic environments and dependent on high-precision positioning, significantly enhancing the stability of positioning equipment in complex electromagnetic environments.

Description

Tri-Band Multi-Constellation Support: Seamlessly receives and processes 8 channels of BDS_B1, GPS_L1, and GALILEO_E1 signals for comprehensive global navigation coverage.

7-Directional Signal Integrity Protection: Effectively shields against abnormal electromagnetic signals from up to seven distinct directions, ensuring robust performance in complex environments.

Highly Integrated 3-Part Architecture: Combines the antenna array, RF module, and processing module into a streamlined design for simplified deployment and reliable operation.

Wide Power Supply Compatibility: Operates reliably on a versatile +18V to +32V DC power supply, making it highly adaptable for various industrial and vehicle platforms.

Enhanced Positioning Stability: Significantly improves the reliability and accuracy of positioning equipment in electromagnetically sensitive and challenging environments.

Specification

Main Technical Specifications
Antenna Array	Signal Processing
•Antenna Elements: 8-channel B1/L1/E1 antenna array •Input Frequencies: • BDS_B1: 1561.098MHz±2.046MHz • GPS_L1: 1575.42MHz±10.23MHz • GALILEO_E1: 1575.42MHz±12.276MHz •Input Impedance: 50Ω •VSWR: ≤2	•Number of Channels: 8 channels for BDS_B1, GPS_L1, GALILEO_E1 •Signal Types: Wideband, narrowband, frequency sweep, pulse, etc. •Signal Processing Bandwidth: 20MHz •Simultaneous Processing Directions: 7 B1, L1, E1 Signal Processing Performance: • Single Direction Performance: ≥110dB@-130dBm • Three Directions Performance: ≥100dB@-130dBm • Seven Directions Performance: ≥85dB@-130dBm


Positioning Performance (Optional)	Reliability
•Cold Start: ≤60s (including self-test time) •Hot Start: ≤10s •Positioning Accuracy: ≤10m •Anti-spoofing Capability (Optional)	•MTBF: ≥ 2000 hours •Continuous Working Time: ≥ 24h


Environmental Adaptability
•Operating Temperature: -40℃ to +70℃, 10% to 90%RH (no condensation) •Storage Environment: -50℃ to +75℃, 10% to 90%RH (no condensation)

Power Supply and Power Consumption	Weight
•Input Voltage: +18V to +32V •Power Consumption (Room Temp): ≤ 20W	Aluminum Alloy Version: ≤ 1200g

Interfaces and Mechanical Dimensions
Interface
•RF Connector: SMA-KF, Impedance: 50Ω, Output Power Range: -50dBm to -70dBm •Power/Data Interface: J30J-9ZKP. Interface pin definition

No.	Pin Definition	Signal Description	Remarks
1	+18～+32V	Power Input	Power Port
2	+18～+32V	Power Input
3	GND	Power Ground
4	GND	Power Ground
5	GND	Signal Ground	Data Port
6	RX	TTL Signal Receive
7	PPS	1PPS Signal+
8	TX	TTL Signal Send
9～15	NC	NC	NC