The DP-452458D-R462468D from AceWavetech is a RF Duplexer with Frequency 462 to 468 MHz(TX), 452 to 458 MHz(RX), Band 1 462 to 468 MHz(TX), Band 2 452 to 458 MHz(RX), Insertion Loss 1.5 dB, Isolation 60 dB. Tags: Module with Connectors. More details for DP-452458D-R462468D can be seen below.