The DF2RA818L-2M from Innertron is a Band Pass Filter with Frequency 816.95 to 818.95 MHz, Bandwidth 2 MHz, Center Frequency 817.95 MHz, Insertion Loss 3.5 dB, Rejection 15 to 35 dB@ 792.95 to 842.95 MHz. Tags: Surface Mount. More details for DF2RA818L-2M can be seen below.