Features High Performance Filtering: This bandpass filter effectively eliminates out-of-band signals, reducing noise while enhancing dynamic range for optimal performance in your applications Wide Frequency Range: Centered at 43Hz, with a 3dB passband of 422-446MHz, enjoy low insertion loss and minimal interference for reliable signal processing Aluminum Alloy Design: Crafted from lightweight, wear-resistant aluminum alloy, this protective shell withstands long-term use without deformation or Excellent Compatibility: Ideal for various systems including Linux, Windows, and Android, it accommodates onboard and external antennas for versatile connectivity User-Friendly Installation: Comes equipped with screws for a compact, easy installation process, ensuring secure protection for your expansion boards without hassle Features: 1、GOOD COMPATIBILITY: Designed for LoRa IoT application, compatible with all helium miners on the market, such as for Nebra HNT hotspot miner, for RAK V2 hotspot miner, etc. 2、WIDE APPLICATION: Suitable for all 43Hz mining machines and antennas, the low pass filter has stable structure, excellent performance and long service life. 3、HIGH PERFORMANCE: The band pass filter has optimized performance, which can effectively filter out out of band signals, reduce noise and increase dynamic range. 4、FREQUENCY RANGE: The center frequency of this bandpass filter is 43Hz, and the 3dB passband is 422‑446MHz, with low insertion loss and less interference. 5、SMA INTERFACE: The bandpass filter has a compact structure, with standard SMA interfaces, stable connection, good stability and strong practicability. Specification: Item Type: Bandpass Filter Material: PCB Impedance: 50 Ohms Center Frequency: 43Hz 3dB Passband: 422-446MHz Insertion Loss: between1.8dB at 430-438MHz Maximum Carrying Power: 100mW (20dBm) Interface: SMA Interface Package List: 1 x Bandpass Filter Note: Pay attention to the correct Package List 1 x Bandpass Filter