The QUD-Series from Tamagawa Electronics Vietnam is a RF Duplexer with Frequency 617 to 894 MHz / 3400 to 3600 MHz, Band 1 617 to 894 MHz, Band 2 3400 to 3600 MHz, Power 200 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for QUD-Series can be seen below.