The DP3840-0807-32 from RFI Technology Solutions is a RF Duplexer with Frequency 380 to 400 MHz, Band 1 380 to 390 MHz, Band 2 390 to 400 MHz, Power 300 W, Insertion Loss 1.8 dB. Tags: Module with Connectors. More details for DP3840-0807-32 can be seen below.