The SYBP-820 from Mini Circuits is a Band Pass Filter with Frequency 770 to 870 MHz, Bandwidth 100 MHz, Center Frequency 820 MHz, Insertion Loss 1.8 to 2.5 dB, Rejection 20 dB @ DC-450 and 1420-2500 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for SYBP-820 can be seen below.