The TFS1590 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 3.2 to 4 dB, Rejection 10 to 40 dB, Upper Rejection 10 to 40 dB, Lower Rejection 30 to 32 dB. Tags: Surface Mount, RF SAW Filter. More details for TFS1590 can be seen below.