The SiMF6R9/2R8-6D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 5.5 to 8.3 GHz, Center Frequency 6.9 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @4.4GHz&9.5GHz, 40 dB @3.5GHz&10.3GHz, 60 dB @DC~2.6GHz, 55 dB @10.5~16.5GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF6R9/2R8-6D1 can be seen below.