The AD1450-1750D367 from Anatech Electronics is a RF Duplexer with Frequency 1350 to 1550 MHz / 1650 to 1850 MHz, Band 1 1350 to 1550 MHz, Band 2 1650 to 1850 MHz, Power 400 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for AD1450-1750D367 can be seen below.