The AM1732-2132D1146 from Anatech Electronics is a RF Duplexer with Frequency 1710 to 1755 MHz / 2110 to 2155 MHz, Band 1 1710 to 1755 MHz, Band 2 2110 to 2155 MHz, Power 2 W, Insertion Loss 2.2 to 2.6 dB. Tags: Surface Mount, Ceramic. More details for AM1732-2132D1146 can be seen below.