The AD2078-2475D229 from Anatech Electronics is a RF Duplexer with Frequency 2027 to 2130 MHz / 2449 to 2501 MHz, Band 1 2027 to 2130 MHz, Band 2 2449 to 2501 MHz, Insertion Loss 0.8 to 1.3 dB, Isolation 10 dB. Tags: Module with Connectors. More details for AD2078-2475D229 can be seen below.