The AD898-937D431 from Anatech Electronics is a RF Duplexer with Frequency 896 to 901 MHz / 935 to 940 MHz, Band 1 896 to 901 MHz, Band 2 935 to 940 MHz, Power 120 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for AD898-937D431 can be seen below.