The MF3A1574F21GCA from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1564.4 to 1585.4 MHz, Bandwidth 21 MHz, Center Frequency 1574.9 MHz, Insertion Loss 1.8 dB, Upper Rejection 7 to 30 dB. Tags: Surface Mount, Monoblock Filter, Dielectric Filter. More details for MF3A1574F21GCA can be seen below.