The AE942NS2181 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 925.2 to 960 MHz, Bandwidth 34.8 MHz, Insertion Loss 1 to 3 dB, Rejection 50 dB, Power 2 W. Tags: Module with Connectors, Notch Filter. More details for AE942NS2181 can be seen below.