The AD915-948D280 from Anatech Electronics is a RF Duplexer with Frequency 902 to 928 MHz / 944 to 952 MHz, Band 1 902 to 928 MHz, Band 2 944 to 952 MHz, Insertion Loss 1 dB, Isolation 80 dB. Tags: Module with Connectors. More details for AD915-948D280 can be seen below.