The ECRA1572F1577C40A from ECHO Microwave is a Band Stop Filter with Stopband Frequency 1572.92 to 1577.92 MHz, Bandwidth 5 MHz, Insertion Loss 1.5 dB ( 500-1565.42, 1585.42-3000 MHz), Rejection 40 dB. Tags: Module with Connectors, Ceramic Filter. More details for ECRA1572F1577C40A can be seen below.