The DP-R380-T390 from AceWavetech is a RF Duplexer with Frequency 390 to 400 MHz(TX), 380 to 385 MHz(RX), Band 1 390 to 400 MHz(TX), Band 2 380 to 385 MHz(RX), Insertion Loss 1.5 dB, Isolation 65 dB. Tags: Module with Connectors. More details for DP-R380-T390 can be seen below.