The AD885-930D447 from Anatech Electronics is a RF Duplexer with Frequency 880 to 890 MHz / 925 to 935 MHz, Band 1 880 to 890 MHz, Band 2 925 to 935 MHz, Insertion Loss 1 dB, Isolation 70 dB. Tags: Module with Connectors. More details for AD885-930D447 can be seen below.