The decisions of technology experts can be a useful leading indicator in making decisions in complex topics. This is especially true if the experts have a strong vested interest in making the right decision. One can compare FHSS to DSSS by looking at the choice major high-technology companies are making for new investments in the 2.4 GHz band. Each of these companies had qualified engineers investigate the two technologies and make an informed decision that will form their strategies for years. Clearly FHSS is heavily favored by technology experts.
FHSS products spend milliseconds at each frequency.
Noise on any given frequency will typically be absent after hopping to another frequency. DSSS is not frequency agile. DSSS products are stationary at a preselected frequency and cannot avoid such interference. FHSS inherently provides a solution to this problem by hopping to a different frequency which is not attenuated. Due to the short nature of typical multipath, the DSSS format is not capable of overcoming this effect with the typical spreading factor used in the wireless LAN industry.