The AD1880-1960D417 from Anatech Electronics is a RF Duplexer with Frequency 1850 to 1910 MHz / 1930 to 1990 MHz, Band 1 1850 to 1910 MHz, Band 2 1930 to 1990 MHz, Power 20 W, Insertion Loss 0.75 dB. Tags: Module with Connectors. More details for AD1880-1960D417 can be seen below.