The AE896NS2171 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 895.8 to 896.2 MHz, Bandwidth 0.4 MHz, Insertion Loss 1 dB, Rejection 50 dB, Power 10 W. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for AE896NS2171 can be seen below.