Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob
VISIT OUR OTHER SITES: THE AWESOMER | 95OCTANE

Like Us on Facebook

Technabob is reader-supported. When you buy through links on our site, we may earn an affiliate commission.
As an Amazon Associate I earn from qualifying purchases. Disclosure.

Super WiFi Concept Uses Empty TV Channels For Long-Distance Transmission

 |  |  |  |  |  May 2, 2011


Our WiFi connection at home is largely confined to the indoors, and it doesn’t even reach all the corners of the house. So imagine my surprise when I read about a new technology that can send WiFi signals up to a mile away, and possibly even beyond. How? By using vacant TV channels to send the signal.

super wifi concept by ryan guerra

Super WiFi is currently being developed at Rice University. The picture above shows Rice U grad student Ryan Guerra installing a Super WiFi antenna. As I mentioned above, the trick was to downshift the high frequency WiFi signal – which has trouble going through physical obstacles like walls and trees – to a lower frequency (and vacant) TV channel.

Eager to test it in real world conditions, Guerra tested Super WiFi in a house a mile away from the transmission tower of the home owner’s service provider. Whereas the traditional set up was “frustratingly intermittent” due to the trees and foliage surrounding the house, Super WiFi “has been quite stable, even with leafy trees and through bad weather, and has yet to show any interference or connection problems, even at a mile from the transmitter.”

super wifi concept by ryan guerra

Pictured above are most of the components needed to set up a Super Wifi connection – a UHF-band filter, a frequency translator, a PC motherboard and WiFi card, and a power supply. The crucial component here is the frequency translator, a prototype device made by Alcatel Lucent. It’s the one that does the downshifting of the signal.

Another benefit of the technology is that, like the TV broadcasts that it replaces, anyone in the path of the signal from a Super WiFi transmitter can take advantage of the connection. It’s very promising, although it’s far from being finalized and has a couple of weaknesses, including a significantly lower bandwidth and network congestion.

I hope that Guerra and his colleagues can fine tune Super WiFi. I think it’s a great and relatively cheap way of providing Internet access. Even if it doesn’t totally replace conventional transmission it could come in really hands in rural areas, field work and in emergency situations. Check out Ars Technica for more info.

[via GizmoWatch via SlashGear]



Foreign Exchange

Foreign Exchange

The Hidden Tool in Power Outlets

The Hidden Tool in Power Outlets

Star Trek: Picard Season 2 (Teaser)

Star Trek: Picard Season 2 (Teaser)

Corvette Stingray IMSA GTLM Championship Edition Celebrates a Winning Racing Season

Corvette Stingray IMSA GTLM Championship Edition Celebrates a Winning Racing Season

This Insanely Rare Ferrari J50 Can Be Yours for $3.6 Million

This Insanely Rare Ferrari J50 Can Be Yours for $3.6 Million

ABT Tunes the Audi RS6 to 789 Horsepower

ABT Tunes the Audi RS6 to 789 Horsepower

Advertisement