The TFS1580A from Vectron International is a Band Pass Filter with Frequency 1544 to 1545 MHz / 1555.42 to 1595.42 MHz / 1559 to 1563 MHz / 1563 to 1587 MHz / 1574.22 to 1576.62 MHz / 1587 to 1591 MHz / 1593 to 1610 MHz, Insertion Loss 3.2 to 3.5 dB, Rejection 21 to 72 dB, Upper Rejection 21 to 72 dB, Lower Rejection 25 to 72 dB. Tags: Surface Mount, RF SAW Filter. More details for TFS1580A can be seen below.