The TFS1601A from Vectron International is a Band Pass Filter with Frequency 1593 to 1610 MHz, Insertion Loss 2 to 3 dB, Rejection 35 to 48 dB, Upper Rejection 35 to 48 dB, Lower Rejection 35 to 38 dB. Tags: Surface Mount, RF SAW Filter. More details for TFS1601A can be seen below.