According to Xinhua News Agency, the wireless WiFi network has entered the lives of ordinary netizens. The advantage is that multiple computers or mobile phones can simultaneously access the Internet. The disadvantage is that the coverage is small. The United States set out to pilot "super" WiFi, which can reach several kilometers. "Super" WiFi is not a WiFi network in the strict sense, the two use different frequencies. Super WiFi requires specially designed equipment, which has obvious advantages compared to ordinary WiFi.
Theoretically, the spread distance of Super WiFi can reach 160 kilometers. Due to some limitations in actual operation, the coverage radius of this wireless network is several kilometers.
Agence France-Presse reported on September 1 that Michael Calabrese, director of the New American Foundation ’s Wireless Future Project, reported that “WiFi has risen, but due to frequency limitations, it can only cover hundreds of meters.†And "electric video waves can travel longer distances, not blocked by buildings and trees", and are more suitable for bad weather. "Super" WiFi technology can be used to provide high-speed Internet services to sparsely populated areas. In addition, it enables consumers to build their own network "hotspots" for easy use when away from home.
Rice University of Houston, Texas first introduced "super" WiFi last year. Relying on the support of Google and Microsoft, some private groups are scheduled to provide "super" WiFi services to college campuses in remote areas early next year.
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