Features 1、The center frequency of this filter module is 915 MHz, which improves the working efficiency. 2、This radio SDR narrowband filter adopts whole process of spraying tin to ensure good passing performance of large and small currents. 3、This module has a large heat dissipation area, which improves the service life better, and is convenient and practical. 4、This filter board is integrally formed without burrs, with glossy exterior and glossy installation. 5、This module filter is made from quality printed circuit board material, which adopts 1.6mm thick double sided board. Specification Item Type: Radio SDR Narrowband Filter Material: Printed Circuit Board Working Frequency: 915±5MHz Insertion Loss: 1.5dB Working Bandwidth: 40MHz Out-of-band Suppression: 45dB at 50MHz Input Impedance: 50 Ohm Output Impedance: 50 Ohms Maximum Input Signal Strength: 13dBm (20mW) Input Interface: SMA K (SMA Female) Output Interface: SMA K (SMA Female) Applicable Temperature: -40℃ to 70℃ Package List 1 x Radio SDR Narrowband Filter