The AE1880NS2176 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 1852.6 to 1907.4 MHz, Insertion Loss 2 dB, Rejection 40 dB, VSWR 1.5:1, Operating_Temperature -30 to 70 Degrees C. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for AE1880NS2176 can be seen below.