Features HIGH EFFICIENCY AND CONVENIENCE: High frequency bandpass filter can reduce the difficulty of work, improve work efficiency, and give you more convenience LIGHTWEIGHT AND PORTABLE: Software defined walkie talkie SDR is small in size and light in weight. One handed operation can reduce operator fatigue and bring better use experience TECHNICAL PARAMETERS: The filter can guarantee the passband bandwidth of 25MHz. The ADS B receiver is optimized for 1090MHz and can effectively filter out out of band signals COOLING PCB: Band pass filter adopts excellent PCB material, corrosion resistant, increase the cooling area, prolong the working time EXCELLENT PERFORMANCE: SDR bandpass filter is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification: Item Type: Passive Bandpass Filter I or O Interface: SMA at 50Ohms Center Frequency: 1090MHz Passband(3dB bandwidth): 14MHz(see the measured frequency response diagram for details) Band Insertion Loss: <4dB Maximum Carrying Power: <300mW(+25dBm) Package List:1 x Passive Bandpass Filter Package List 1 x Passive Bandpass Filter