The HRMA-CF-3.4-3.6 from HRmicrowave is a Band Pass Filter with Frequency 3.4 to 3.6 GHz, Insertion Loss 0.5 dB, Upper Rejection 60 dB, Lower Rejection 60 dB, Return Loss 20 dB. Tags: Module with Connectors, Combline Filter. More details for HRMA-CF-3.4-3.6 can be seen below.