The AM902-947D1165 from Anatech Electronics is a RF Duplexer with Frequency 890 to 915 MHz / 935 to 960 MHz, Band 1 890 to 915 MHz, Band 2 935 to 960 MHz, Insertion Loss 2.4 dB, Isolation 40 dB. Tags: Surface Mount. More details for AM902-947D1165 can be seen below.