The SiMF6R85/R5-8D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 6.6 to 7.1 GHz, Center Frequency 6.85 GHz, Insertion Loss 3 dB, Rejection 30 dB @6.1GHz&7.6GHz, 40 dB @6GHz&7.7GHz, 60 dB @DC~5GHz, 55 dB @8~11GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF6R85/R5-8D3 can be seen below.