The DEI8025-1767.5MHz from Dynamic Engineers is a Band Pass Filter with Frequency 1755 to 1780 MHz, Bandwidth 25 MHz, Center Frequency 1767.5 MHz, Insertion Loss 0.5 dB, Rejection 50dB @ DC ~ 1575MHz to 50dB @ 1960 ~ 4000MHz. Tags: Module with Connectors, Cavity Filter. More details for DEI8025-1767.5MHz can be seen below.