The AE1187-1587D1170 from Anatech Electronics is a RF Duplexer with Frequency 1160 to 1215 MHz / 1558.42 to 1616.14 MHz, Band 1 1160 to 1215 MHz, Band 2 1558.42 to 1616.14 MHz, Power 1 W, Insertion Loss 2 dB. Tags: Surface Mount, Ceramic. More details for AE1187-1587D1170 can be seen below.