The AD512-915D468 from Anatech Electronics is a RF Duplexer with Frequency 488 to 537.5 MHz (Rx) / 902 to 928 MHz (Tx), Band 1 488 to 537.5 MHz (Rx), Band 2 902 to 928 MHz (Tx), Insertion Loss 1.5 to 2.5 dB, Isolation 20 dB. Tags: Module with Connectors. More details for AD512-915D468 can be seen below.