The RSD-897.500-942.500-1814-TR-NS1 from Raltron is a RF Duplexer with Frequency 880 to 915 MHz / 925 to 960 MHz, Band 1 880 to 915 MHz, Band 2 925 to 960 MHz, Power 30 dBm, Insertion Loss 1.7 to 2.6 dB. Tags: Surface Mount. More details for RSD-897.500-942.500-1814-TR-NS1 can be seen below.