The ECRA1574F1576B25A from ECHO Microwave is a Band Stop Filter with Stopband Frequency 1574.5 to 1576.5 MHz, Bandwidth 2 MHz, Insertion Loss 1 dB, Rejection 40 dB. Tags: Module with Connectors, Notch Filter, Cavity Filter. More details for ECRA1574F1576B25A can be seen below.