The Model 18778 from Microwave Filter Company is a Band Pass Filter with Frequency 2527 to 2587 MHz, Bandwidth 60 MHz, Center Frequency 2557 MHz, Insertion Loss 2.5 to 3 dB, Lower Rejection 25 to 65 dB @ 2400 MHz, 2572 MHz. Tags: Module with Connectors. More details for Model 18778 can be seen below.