The RDXA-R947-T902A from Raltron 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 2.5 to 3 dB, Attenuation 48 dB. Tags: Surface Mount. More details for RDXA-R947-T902A can be seen below.