The AM2000-2180D1085 from Anatech Electronics is a RF Duplexer with Frequency 1980 to 2020 MHz / 2160 to 2200 MHz, Band 1 1980 to 2020 MHz, Band 2 2160 to 2200 MHz, Power 4 W, Insertion Loss 1.5 dB. Tags: Surface Mount, Ceramic. More details for AM2000-2180D1085 can be seen below.