The 8C17D4G-300-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 17.25 to 17.55 GHz, Bandwidth 300 MHz, Center Frequency 17400 MHz, Insertion Loss 3 dB, Rejection 80dB @ 16800 and 18000MHz. Tags: Module with Connectors, Cavity Filter. More details for 8C17D4G-300-CD-SFF can be seen below.