The AE1842WN2234 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 1.805 to 1.88 GHz, Insertion Loss 2 dB, Rejection 50 dB, Power 50 W, VSWR 1.50:1. Tags: Module with Connectors, Notch Filter. More details for AE1842WN2234 can be seen below.