The AE3500-3785DB5428 from Anatech Electronics is a RF Duplexer with Frequency 3400 to 3600 MHz / 3685 to 3885 MHz, Band 1 3400 to 3600 MHz, Band 2 3685 to 3885 MHz, Power 50 W, Insertion Loss 0.7 to 1.5 dB. Tags: Module with Connectors. More details for AE3500-3785DB5428 can be seen below.