The TFS1590C from Vectron International is a Band Pass Filter with Frequency 1563 to 1587 MHz / 1574.22 to 1576.62 MHz / 1587 to 1591 MHz / 1593 to 1610 MHz, Insertion Loss 4 to 4.5 dB, Rejection 20 to 50 dB, Upper Rejection 20 to 50 dB, Lower Rejection 30 to 32 dB. Tags: Surface Mount, RF SAW Filter. More details for TFS1590C can be seen below.