The AM897-942D1171 from Anatech Electronics is a RF Duplexer with Frequency 880 to 915 MHz / 925 to 960 MHz, Band 1 880 to 915 MHz, Band 2 925 to 960 MHz, Power 3 W, Isolation 33 to 45 dB. Tags: Surface Mount, Ceramic. More details for AM897-942D1171 can be seen below.