The CBP-804F+ from Mini Circuits is a Band Pass Filter with Frequency 783 to 825 MHz, Center Frequency 804 MHz, Insertion Loss 2 to 3.5 dB, Upper Rejection 20.0 to 30.2 dB, Lower Rejection 20 to 31.9 dB. Tags: Surface Mount, Ceramic Filter. More details for CBP-804F+ can be seen below.