The DP-R17101785P-T18051880P from AceWavetech is a RF Duplexer with Frequency 1805 to 1880 MHz(TX), 1710 to 1785 MHz(RX), Band 1 1805 to 1880 MHz(TX), Band 2 1710 to 1785 MHz(RX), Power 600 W, Insertion Loss 1.3 dB. More details for DP-R17101785P-T18051880P can be seen below.