Mobile Articles

Buying a Cell Phone: An Overview
In the last decade the cell phone industry has grown thousand fold all around the world. A cell phone is somewhat necessary for an individual to keep up with the busy life of the current era. A few years back, a cell phone was not considered a necessity; it was just a luxury that was being enjoyed by only a small number of individuals. But nowadays, life without a cell phone seems impossible. People all around the world are addicted to the use of a cell phone. This is mainly because the cell phone is no longer just a cell phone; it has evolved into many things like a personal digital assistant (pda), music player, a global positioning system (gps) and a lot more. Everyday different manufacturers around the world are introducing the models with the new features. This is what needs to be taken into consideration when you go for buying a cell phone. You need to be sure about the features you want that suit your lifestyle well.
The Money Matter
Nowadays there is so much choice for an individual to buy a cell phone. Every company is producing the models with state of the art technology and features everyday. Price is the main thing that makes a difference in these different models. An expensive phone is likely to have more features, reliability and a better technology than a cheap one. Everyone wants a best phone in the market for him but high price of the cell phones comes in the way therefore price is a big thing that needs to be kept in mind while buying a cellular phone. But expensive and sophisticated phones are not everyone’s choice; there are people who just want a simple cell phone which is not much expensive but does its job well only as a cell phone. Also the extra features provided in the expensive phones are not everyone’s need.
Therefore the price is a main thing to keep in mind whenever you to buy a cell phone. Do not buy a cell phone just because it is expensive; buy the one that suits your needs.

	THE CELLULAR TECHNOLOGY	There is a type of low power two-way radio base station, which serves a coverage area, divided into many smaller zones (cells). Telephone handsets continuously search for the closest base station, and hop from base station to base station if the user was on the move. This strategy of replacing one high power base station with many low power base stations distributed throughout the coverage area made it possible to handle far more subscribers, and reduced the power requirements for wireless telephones. Reducing the amount of power needed to carry a conversation through the airwaves, made it possible for manufacturers to produce much smaller phones. While solid state circuitry advances have played an important role in reducing the size and weight of portable phones, the reduction of power requirements eliminated the need for bulky, heavy batteries to power handsets. The first cellular telephone network put to widespread use was an analog system called AMPS. An AMPS is an analog, frequency modulation scheme (the same scheme used in FM radio). At the time cellular was introduced, FM modulation/demodulation circuitry was a commodity product, and so this was the most cost effective way to introduce cellular service. Digital cellular did not become cost effective until the 1990s when DSP based platforms came down in price enough to make it practical to create an all-digital telephone handset. HOW IT WORKS: Scan Channels: A scan for the closest cell site near you is made, so that you can get the strongest signals possible due to your location at the moment. Send Message: The phone then sends a short message to the cell site verifying the MIN, ESN, and the number that you have just entered to call. Assign Channel: After verifying the above information and your number, the base assigns a message to your phone, telling it where the conversation is. Talk: The phone then gets on that channel and begins to ring. A cell phone has become easily accessible today, as it can fit in most pockets. (pun intended!) a decent cell-phone will be available starting Rs. 5000/- and of course, the sky is the limit if you want an expensive model. Another thing to note is that cell phone prices are going down as the market becomes more competitive. Small is in. At least where the cell phones go. The new tiny single-chassis phones are called "candy bar" models, a reference to their shape. Many weigh less than 200 grams, battery included. The familiar squat flip-phones -- those that open like communicators from the old "Star Trek" -- also are ultra-light. Batteries are getting smaller too. New nickel metal hydride (NiMH) batteries are smaller and lighter than the Nickel Cadmium (NiCad) batteries, but often provide about 40 percent less power. The latest batteries are the Lithium Ion (Li-Ion) and the Lithium Polymer batteries, which are of superior quality. The Cellular Telecommunications Industry Association (CTIA) is a standard performance testing association for cell phones. Like an ISI seal, it too has an approval seal.
	WHAT CAN GO WRONG WITH A CELL PHONE	Your cell phone is tailor-made to deal with tough conditions, which come from the fact that it is a mobile service. But nonetheless, the instruments can take only so much abuse, and are susceptible to breaking. If your phone gets wet, or if you dial the numbers with wet hands, and water gets into the buttons and internal corrosion may occur. Make sure your phone is dry, especially when it is switched on. Using a belt-clip or a holster keeps the cell phone firmly in its place, and prevents it from falling off accidentally. Try not to stuff your phone in with all your other worldly possessions, it may cause the glass display screens to crack. Extreme heat can cause damage to the cell phone electronics and the cell phone battery. Extreme cold can also cause a temporary loss of the display screen.