Features Good Compatibility: The bandpass filter is 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. Wide Application: The receiver filter is suitable for all 433MHz mining machines and antennas, the low pass filter has stable structure, excellent performance and long service life. High Performance: The band pass filter has optimized performance, which can effectively filter out out of band signals, reduce noise and increase dynamic range. Frequency Range: The center frequency of this bandpass filter is 433MHz, and the 3dB passband is 422‑446MHz, with low insertion loss and less interference. SMA Interface: The 433MHz 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: 433MHz 3dB Passband: 422-446MHz Insertion Loss: <1.8dB at 430-438MHz Maximum Carrying Power: 100mW (20dBm) Interface: SMA Interface Package List: 1 x Bandpass Filter Note: Pay attention to the correct operation Package List 1 x Bandpass Filter