The AM1206-1575D1174 from Anatech Electronics is a RF Duplexer with Frequency 1164 to 1248 MHz / 1555 to 1595 MHz, Band 1 1164 to 1248 MHz, Band 2 1555 to 1595 MHz, Power 3 W, Insertion Loss 1.5 dB. Tags: Surface Mount, Ceramic. More details for AM1206-1575D1174 can be seen below.