1. HIGH EFFICIENCY AND CONVENIENCE: The high-frequency band-pass filter simplifies your work, enhances efficiency, and offers greater convenience. 2. LIGHTWEIGHT AND PORTABLE: The software-defined walkie-talkie SDR is compact and lightweight, allowing for one-handed operation to reduce operator fatigue and provide a better user experience. 3. TECHNICAL PARAMETERS: The filter guarantees a bandwidth of 25MHz. The ADS-B receiver is optimized for 1090MHz and effectively filters out out-of-band signals. 4. COOLING CIRCUIT BOARD: The band-pass filter utilizes an excellent circuit board material that is corrosion-resistant, increasing the cooling surface area and extending working time. 5. EXCELLENT PERFORMANCE: The SDR band-pass filter is finely crafted, featuring a compact appearance and stable performance, ensuring durability and stability. Item Type: Passive Band-Pass Filter Input/Output Interface: SMA at 50 ohms Center Frequency: 1090MHz Passband (3dB Bandwidth): 14MHz (refer to the measured frequency response diagram for details) Band Insertion Loss: <4dB Maximum Carrying Power: <300mW (+25dBm) 1 x Passive Band-Pass Filter