Features 1、It has a 1.6mm thick PCB double sided board, long service life, and is sturdy and durable. 2、This band pass filter module has a large heat dissipation area, stable operation and long running time. 3、This RF band pass filter module is easy to use, carry and store, and has good performance and small size. 4、The working frequency of this bandpass filter module is 403±2.5MHz, and the output and input Impedance are both 50 Ω. 5、Please carefully note that do not use outside the frequency range for security purpose. Specification Item Type: Filter Module Material: PCB Color: Green + Gold Working Frequency: 403±2.5MHz Insertion Loss: 1.7dB Out-of-band Suppression: 60dBat50MHz Input Impedance: 50 Ω Output Impedance: 50 Ω Maximum Input Signal Strength: 20dbm (100MW) Input Interface: SMA-K (SMA Female) Output Interface: SMA-K (SMA Female) Purpose: Filter Package List 1 x Filter Module