The DUP – 1019 – VE from Tamagawa Electronics Vietnam is a RF Duplexer with Frequency 1.71 to 2.17 GHz, Band 1 1710 to 1880 MHz, Band 2 1920 to 2170 MHz, Power 250 W, Insertion Loss 0.4 to 0.5 dB. Tags: Module with Connectors. More details for DUP – 1019 – VE can be seen below.