The AE15-455DB5172 from Anatech Electronics is a RF Duplexer with Frequency DC to 30 MHz / 50 to 860 MHz, Band 1 DC to 30 MHz, Band 2 50 to 860 MHz, Insertion Loss 1 dB, Isolation 50 dB. Tags: Module with Connectors. More details for AE15-455DB5172 can be seen below.