The ECRA2110F2170D30A from ECHO Microwave is a Band Stop Filter with Stopband Frequency 2110 to 2170 MHz, Bandwidth 60 MHz, Insertion Loss 2 dB, Rejection 30 dB. Tags: Module with Connectors, Notch Filter, Cavity Filter. More details for ECRA2110F2170D30A can be seen below.