The AD3318-3394D244 from Anatech Electronics is a RF Duplexer with Frequency 3312 to 3324 MHz / 3388 to 3400 MHz, Band 1 3312 to 3324 MHz, Band 2 3388 to 3400 MHz, Insertion Loss 1 dB, Isolation 40 dB. Tags: Module with Connectors. More details for AD3318-3394D244 can be seen below.