The µFILTER SF-864 from NuWaves RF Solutions is a Band Pass Filter with Frequency 858.25 to 869.75 MHz, Bandwidth 11.5 MHz (3 dB Bandwidth), 16 MHz (20 dB Bandwidth), Center Frequency 864 MHz, Insertion Loss 4 to 6 dB, VSWR Input 1.75:1, 2.00:1. Tags: Module with Connectors. More details for µFILTER SF-864 can be seen below.