Modern wireless Internet services have greatly helped people enhance the way they do their work. Their role has become so crucial that businesses may become paralyzed when they cease to become available.
There are three general types of wireless Internet services. These are cellular Internet, hotspot wireless Internet, and satellite Internet.
Cellular Internet is made possible by a cellular architecture that is made up of a backbone network. A group of cell phones located in a certain area can communicate using a common base station called a cell. Cells are made to overlap each other to ensure continuity of communication. Mobile units of different cellular Internet providers are able to connect with each other using the base stations and the backbone network of each provider.
To further facilitate communication among cell phones using different providers, a standard system has been developed. This is called Global System for Mobile Telecommunications, which has made roaming possible.
Hotspot wireless Internet, on the other hand, is useful for enabling Internet access in certain areas that are called hotspots. Examples of these areas are airports, coffee shops, and hotels. Internet access in these hotspots may come with a fee, but some offer it for free to further attract visitors in their respective areas.
Wireless local area network standards are used by hotspot wireless Internet. An example of such a standard is IEEE 802.11b, which allows connections at speeds of more than 10 megabits per second.
Meanwhile, satellite Internet from anywhere is being used for rescue services and other industries such as mining, transportation, and traveling. This provides better quality than traditional radio systems. To enable such service, a user needs to have an antenna that is aimed at the correct satellite and a modem that will be used to connect to the computer. The architecture of satellite Internet consists of an elliptical satellite dish, modems, and coaxial cables between the dish and the modems. The satellite dish needs to be mounted to a high place to ensure faster transmission of data.
Wireless Internet has indeed been crucial in helping businesses grow and governments improve. Because of its practical uses, it has also become a tool for personal use. One can only expect further improvements to be introduced to wireless Internet because, as time passes by, the demand for it will continue to rise.
By: Josh Riverside
Wireless Internet Services
February 7th, 2010 by admin No comments »Satellite Internet Services – Where to Get Fastest Speeds and Best Prices
February 7th, 2010 by admin No comments »
Satellite Internet service offers high speed Internet access anywhere in the U.S.
Imagine having an always-on connection with speeds up to 50 times faster than dial-up service. Imagine not having to log on and wait to get connected. And imagine being able to download photos and music files in seconds, instead of minutes or hours.
Now, with new lower prices, you don’t have to suffer with with slow-as-a-turtle dial-up Internet service any longer.
Satellite Internet Features
* Satellite service is available to anyone in the U.S. who has a clear view of the southern sky.
* You can get speeds up to 5 Mbps – that’s 50 times faster than dial-up service.
* You can take calls and talk on the phone while working on the Internet
* An “always on” connection means you don’t have to dial in, log on, then wait to get connected to the Internet.
Compare the Best Providers
HughesNet
Of the top four satellite providers, HughesNet is the largest and oldest, with more than 400,000 customers and 30 years in the business. They charge $59.95 for their 1 Mbps service, they offer free installation, and they also offer a 30-day, money-back guarantee.
WildBlue
WildBlue is the second-largest provider, with more than 100,000 customers and 6 years in the business. They charge $69.95 for their 1 Mbps service, and installation is free after a $99.95 activation fee.
Skyway
Skyway is the third largest provider. They charge $59.95 for their 1 Mbps service plus a $25 activation fee. You can install their equipment yourself or pay $100 for a professional to install it.
Starband
Starband is the fourth-largest provider. They charge $69.95 for their 1 Mbps service. They require you to pay for professional installation (prices vary).
The Bottom Line
If you’re looking for the fastest speed, HughesNet offers speeds up to 5 Mbps which is four times faster than their nearest competitor. If you’re looking for superior service, HughesNet has has more than 400,000 satisfied customers – four times as many as their nearest competitor. And they’re the only provider that warrants their service with a 30-day money-back guarantee.
By: Brian Stevens
DSL – How it Works
February 6th, 2010 by admin No comments »
DSL has its roots in telephone lines
To understand how DSL works, you need to have a general understanding of how telephone lines work. Telephone lines work by sending signals through copper wires. These wires run from your home to the road. There, they are packed into a thick cable and bundled with over 100 other wires. The cable either runs directly to the phone company’s switch board or to a box on the side of the road which acts as a digital concentrator. From there, the signal can be directed anywhere in the world.
So what does this have to do with DSL?
Telephones only transmit voice signals over the copper wires. Voice frequencies typically range from 0 to 3,400 Hertz (cycles per second), however the copper wires are capable of handling much more bandwidth then is used by regular telephone lines.
This is where DSL comes in. DSL takes advantage of the extra space available on these wires. By using different frequencies (high frequency for DSL and low frequency for normal telephone) DSL is able to transmit data through the phone lines without interrupting your regular telephone service. This is achieved using a device called a POTS (Plain Old Telephone Service) splitter. Telephone frequencies are routed one way while the DSL frequencies are routed the other way.
Of course, historically, it makes sense for phone companies not to use this extra space because it allows them to have a higher capacity of phone lines in a smaller space. However, modern technology uses digital signals instead of analog signals so DSL can safely use much more of the telephone line’s capacity without interrupting the signal.
Advantages of DSL
Because of these advancements in technology, DSL comes with many advantages. First of all, it allows you to keep your internet connection open and talk on the phone at the same time. Before DSL, unless you had a separate phone line for the internet, you couldn’t talk on the phone at the same time you were on the internet. Additionally, the connection speed is much greater than a regular modem which allows pages to load faster and for faster download speeds.
Since DSL works directly with your existing phone lines, it doesn’t require any new wiring. Unless your house hasn’t been renovated since 1875, you can use your existing phone line to connect to the internet. Also companies that provide DSL also usually provide a modem to go with your connection as part of the installation. DSL is so easy to install that some companies will simply send you the hardware and you can install it yourself. This saves you both time and money.
By: Saleh Tousi