The RMDU.1710-1880Nf from Response Microwave Inc is a RF Duplexer with Frequency 1710 to 1785 MHz(RX) / 1805 to 1880 MHz(TX), Band 1 1710 to 1785 MHz (RX), Band 2 1805 to 1880 MHz(TX), Power 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for RMDU.1710-1880Nf can be seen below.