The RSF-806.000-30000-1109-TR-NS1 from Raltron is a Band Pass Filter with Frequency 791 to 821 MHz, Bandwidth 30 MHz, Center Frequency 806 MHz, Insertion Loss 2 to 3 dB, Rejection 60 to 25 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-806.000-30000-1109-TR-NS1 can be seen below.