The B016MD6S from Knowles is a Band Pass Filter with Frequency 1.57 to 1.58 GHz, Bandwidth 10 MHz, Center Frequency 1.575 GHz, Insertion Loss 3.5 to 4.2 dB, Rejection 40 to 50 MHz. Tags: Surface Mount, Ceramic Filter. More details for B016MD6S can be seen below.