The DP-R18501910P-T19301990P from AceWavetech is a RF Duplexer with Frequency 1930 to 1990 MHz(TX), 1850 to 1910 MHz(RX), Band 1 1930 to 1990 MHz(TX), Band 2 1850 to 1910 MHz(RX), Power 600 W, Insertion Loss 1.3 dB. More details for DP-R18501910P-T19301990P can be seen below.