virus 4dUsing artificial intellence, nano-DIHM enables 4D tracking of viruses in air and water and has the capability for surface measurement (e.g., roughness and surface areas) inOn two different -4D's by the way. My RT-860 meanwhile gives me an S8 with a -110db input. But I have to use the second antenna input on the RT-860. There is only one antenna input on