The DF2RC818H-2M1 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 30 dB @ 792.95 to 842.95 MHz. Tags: Surface Mount. More details for DF2RC818H-2M1 can be seen below.