The RDUP-806-824M-851-869M-4320-3W-S-R-ca-j from Raditek is a RF Duplexer with Frequency 806 to 824 MHz / 851 to 869 MHz, Band 1 806 to 824 MHz, Band 2 851 to 869 MHz, Power 3 W, Insertion Loss 3 dB. Tags: Surface Mount, Ceramic. More details for RDUP-806-824M-851-869M-4320-3W-S-R-ca-j can be seen below.