A microfluidic analysis system for optically analyzing a substance includes a light source having a plurality of selectable single-wavelength light sources, a substance presentation member optically coupled to the light source, and an optical detection system associated with the substance presentation member. AP station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space ). The signal feeder cable includes an inner core wire and a metal braiding layer respectively soldered onto the connecting point of the low-frequency radiating portion and the high-frequency radiating portion and the first ground portion.