The AD457-469D316 from Anatech Electronics is a RF Duplexer with Frequency 456 to 458 MHz / 468 to 470 MHz, Band 1 456 to 458 MHz, Band 2 468 to 470 MHz, Power 2 to 45 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for AD457-469D316 can be seen below.