The AE1747WN2261 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 1.71 to 1.785 GHz, Insertion Loss 2 dB, Rejection 40 dB, Power 50 W, VSWR 1.50:1. Tags: Module with Connectors, Notch Filter. More details for AE1747WN2261 can be seen below.