The AD3647-3747D292 from Anatech Electronics is a RF Duplexer with Frequency 3635 to 3660 MHz MHz / 3735 to 3760 MHz, Band 1 3635 to 3660 MHz MHz, Band 2 3735 to 3760 MHz, Insertion Loss 1 dB, Isolation 80 dB. Tags: Module with Connectors. More details for AD3647-3747D292 can be seen below.