The ECRA1575R2B70B from ECHO Microwave is a Band Stop Filter with Stopband Frequency 1574.42 to 1576.42 MHz, Bandwidth 2 MHz, Insertion Loss 1.0 dB ( DC-1560, 1591-3000 MHz), Rejection 70 dB. Tags: Module with Connectors, Ceramic Filter. More details for ECRA1575R2B70B can be seen below.