The BPF-887M18-01A from AMCOM Communications, Inc. is a Band Pass Filter with Frequency 869 to 887 MHz, Insertion Loss = 1.0 dB, Rejection 20dB@9kHz-850MHz, 60dB@900MHz -2000MHz, Power 50 W, Ripple 0.6 dB. Tags: Module with Connectors. More details for BPF-887M18-01A can be seen below.