The WRCT5-880.7-881.4-881.6-882.3-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 881.4 to 881.6 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.5 to 1.75 dB, Rejection 30 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT5-880.7-881.4-881.6-882.3-30 can be seen below.