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Using White Space for Internet Coverage

Leave a reply Jonny Hankins

Google launched an interesting experiment this week, offering free “super” wi-fi connection to the Internet for several schools in Cape Town South Africa. What is interesting about that you might ask? Well they are using the unused frequencies in the broadcast TV spectrum.

White Space diagram

A diagram of a white space network

The TV broadcasting frequency spectrum is currently divided between many channels, but between each channel there is a gap, a frequency space, often known as “white space’, and the hope is that this space can be used to broadcast high speed wireless Internet access. This experimental system is not without it doubters though, TV companies are not keen because they think there might be interference in their picture, so what better than a small experiment to try it out?

We can all imagine how this experiment might revolutionize Internet use though. In the countryside where infrastructure is lacking but TV is visible the companies could offer a service. In the city where cables are all in use they could do the same. One great advantage is that low frequency signals can travel over long distances, so the coverage potential is massive, and they penetrate buildings and other natural barriers much more efficiently than other frequencies currently in use.

Here in the US many telecommunications carriers have been complaining that there is not enough bandwidth for them to keep up with consumer demand, and so the Federal Communications Commission has been trying to free up spectrum space. They approved rules in 2010 about the use of such white spaces and databases have been set up to monitor spectrum use to see how it can be improved. Google are one of the leaders in this database organization too, as this article explains.

Experiments are being conducted here too, with this article describing how the system is being used in a small North Carolina town, and results reported in the UK claim that the system can deliver 16 megabits per second over 10KM (see Christopher’s comments on this related article for an explanation of what that means), but this is a delivery similar to what we know as 4G.

Potentially great improvements in coverage might be just round the corner through a more efficient use of an already existing infrastructure.

How to get the most from your fibre optic broadband

1 Reply Christopher Roberts

While fibre optic internet coverage continues to grow, internet prices are continuing to decrease, meaning it’s never been a better time to upgrade your internet. That being said, if you intend on shelling out on fibre optic, its best you consider how you can ensure you make the most of what you pay for.

Upgrade your wireless router

If your internet supplier has not already provided you with a new wireless router, you may find the need to upgrade to make the most of your new high speed internet. Older routers on the whole tend to be around 50% slower than newer models, meaning investment is paramount if you want to make the most of your fibre optic connection. There is a huge array of routers on the market, with many different features. It’s advised that you go for a dual band router if you have many devices on your network as it will ensure a better connection that is less prone to interference.

Use an Ethernet cable

If you’re after the highest internet and data transferral speeds, connecting via an Ethernet cable is by far your best option. Wireless data is transmitted at a snail pace when compared to a cabled connection, which now has speeds of up to one gigabit on some routers, so really cuts down on the benefit of fibre optic broadband. Though far from practical, having a wired connection will enable you to really make the most of your internet connection.

The end of an Ethernet cable

The end of a red Ethernet cable – the colour has no significance, red just makes for a more vibrant image!

If you own a desktop, setup your router nearby so you can always have a wired connection for your PC. If not consider hiding cables in the wall throughout your home so you can have high speed connectivity throughout your home. If done right, it can even make your home more attractive when it comes to selling it!

Set up a media server

Modern hard drives now have functions which enable them to be used and accessed over your network, meaning you don’t need it to be plugged directly into your computer for it to work. Not only is this highly practical, it also allows multiple users to access information at the same time, without the need of cables.

Splash out on modern technology

Many modern devices now have some form of use for wireless internet, so splashing out on the latest devices will mean you can really make the most of your fibre optic connection. Many consoles such as the Xbox 360 or the PlayStation 3 will allow users to stream content from the internet or computer onto the TV. With a high speed connection, you can have many devices operating at full pelt without feeling like your connection is being throttled.

Which new printer is best for you?

11 Replies Scott Williams

A printerAs with everything from televisions to cameras to computers, printer technology evolves and improves with every year. Printer manufacturers release new models every calendar year that offer new features, improved capabilities and, in some cases, fixes for problems that have plagued users in earlier models.

In 2012, printers are faster than ever before, providing crisp and clean images and text. Still, they manage to print more quickly and use less ink, making them so much more efficient. Other trends this year include larger formats and wireless capabilities. Here’s a closer look at some of the top printers of 2012, for all possible budgets and printing needs.

HP Envy 110 e-All-in-One

Want a printer that is environmentally friendly while also providing high-quality printing? Then this is your printer. The world’s only PVC-free printer, the Envy inkjet printer, is also Energy Star certified and offers green features like automatic two-sided printing and an ink cartridge recycling program.

In addition to the low environmental impact, the Envy offers quick and quiet printing and produces lab quality photo prints and crisp documents. And in addition to the wireless capabilities, the Envy has built in AirPrint capabilities, meaning you can print from your iPad, iPod touch or iPhone. Best of all, the Envy is affordable, just around $200.

Canon Pixma MX432

Are you working from home? Do you need an affordable machine that prints, scans and copies? Then the Canon Pixma MX432 might be a good option for you.

Costing about $100, this sleek machine does everything you need for a low price. While this inkjet has a slightly slower speed than some other comparable printers, it provides excellent photo printing and includes wireless and AirSoft capabilities for convenient printing on the go.

HP Officejet Pro 8500

If you need fast and high-quality printing plus the capability to scan, copy and fax, then this is the model for you. One of the most user-friendly printers on the market, it boasts a large LCD screen that allows you to set your preferences with just the touch of a button.

For an inexpensive all-in-one (this model runs just under $300) the HP Officejet prints quickly, with about 15 pages per minute in black and white, 11 pages per minute in color, both with professional-looking resolution and quality. The drawback to this model is that it does not have wireless capabilities, but you can scan directly to e-mail or print from a memory card.

Epson Artisan 835/Epson Artisan 1430

If you print lots of photos at home, then the Epson Artisan 835 is definitely a printer to consider. Unlike other inkjet printers that use four color ink cartridges plus a black cartridge, the Epson uses a six cartridge system.

The two extra ink colors, light magenta and light cyan, allow the Epson to print photos with a greater range and depth of colors, meaning that your snapshots look professionally printed. This printer is more than adequate in other areas as well, providing crisp black and white printing at nine pages per minute, plus scanning, faxing and copying capabilities. This printer costs around $300.

If you would rather have greater photo printing capabilities than multiple functions, consider the Epson Artisan 1430. This printer is geared toward the photographer, printing gallery-worthy prints up to 13” x 19”. With a price tag of less than $300, this printer is far more affordable than other wide format models, making it the ideal choice for amateur photographers or craft enthusiasts who want to print larger photos and documents.

The Artisan 1430 also includes wireless capabilities, plus Epson Connect, which allows you to print from your smartphone, tablet or other mobile device.

Printers have come a long way from the slow and inefficient dot matrix models of the early days of home computing. The best model for you depends on how you plan to use it; if you plan to print mostly documents, look for a model that prints quickly and efficiently, while a photo printer should provide high-quality color prints.

If you take lots of photos or do work on a mobile device, choose a compatible printer that allows you to print directly from your device. Test a few models, compare the quality and make the right printer decision for you; if nothing else, there will plenty of new models to choose from next year.