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By Roberto Sedycias

Global positioning system (GPS) is an important tool for any wireless system. GPS provides the geographical locations no matter where you are. Initially it was developed by the federal government meant to be used in military bases to accurately determine the position of ballistic missile submarines, prior to the launch of those missiles.

But in addition to military and surveying exercise, today GPS is used in many commercial purposes. It is used for air, land and sea navigation. Also used in law enforcement purposes for vehicle tracking. GPS tracks any location with the help of interpreting signals received from 3 or more orbiting satellites. This tool can also be used to know the weather forecast details.

Today, communication devices especially cell phones have become much more technologically advanced and are not restricted to mere means of conversation. GPS tracking in cell phone is one of such advance features. Before GPS, triangulation technique was used where three cell phone towers were used to determine the approximate location of any particular cell phone. But often the finding wasn`t precise. However, with the advent of this technology, one can get the accurate location within about five meters. The cell phone enabled GPS gives ten times more accurate than triangulation.

The compact size, great accuracy and easy mobility feature has made the GPS cell phone an increasingly popular tracking device. It enables users to accurately track anyone carrying a compatible mobile device. This feature in cell phones has many advantages. With cell phone GPS tracking, you won`t ever get lost anywhere. Any place can be located efficiently within a short time. Business persons can get benefited from this GPS enabled cell phones as they can track all their business matters through the navigation feature of these devices.

Another important utility of the cell phone GPS tracking can be in emergency services. For Police or Ambulance services, it`s easy to locate the call if dialed from a GPS cell phone. That`s why, the FCC legislated that wireless networks to supply location information for 911 calls made from cell phones. These calls are known as E911 (enhanced emergency) calls.

GPS cell phones are a savoir for tourists who in a new place often face problems while finding monumental locations such as museum, hotel, bars, restaurant, shopping complex. But the cell phone GPS tracking feature enable them to track any place they want to visit.

Following the aftermath of September 11, the FCC has mandated all service providers to make GPS tracking of cell phone calls possible. Hence since 2005, all cells have GPS-track option and the use of it are expected to grow manifolds in coming days. because as per one statistics, with in the next three years time, the GPS chipset revenue is expected to more than double to $1.3 billion and the GPRS enabled cell phone revenue is expected to be hitting 550 million units.

GPS tracking in cell phone has its own pros and cons. No doubt it is useful for keeping track of our loved ones, but there is also danger of infringement of privacy. Any compatible cell number and its incoming and outgoing number details can be tracked through these GPS cell phones but by companies who have been authorized license for this.

In case you wonder that your calls are being traced, don`t worry, for your actual conversation is not traceable with the GPS phones. It only keeps track of what numbers are being called in and dialed out. If you don`t want to be tracked, you can simply select the “hide” option on your GPS phone any time to opt out of the service.

About the Author: You can have access to portuguese articles about cell phones from page

polomercantil.com.br/celular.php

Roberto Sedycias works as IT consultant for

polomercantil.com.br

Source:

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byAlma Abell

There was a time when energy costs in Hawaii were higher than many other areas of the country, but solar energy has changed that picture. Several years ago residents began to harness the sun’s power to create renewable energy, and today it is very common to see a Solar Photovoltaic System in Hawaii, as more residents choose eco-friendly, affordable solutions.

Solar Solutions Are Economical

When solar energy was first introduced it was often too expensive for the average homeowner. However, as technology advanced and providers became more efficient, equipment and installation costs have gone down and now it is typical for a new home to include a Solar Photovoltaic System in Hawaii. Experts such as The Sonshine Solar Corp can provide equipment that allows homeowners to harness the sun’s power to produce all of their home’s electric. They offer solar hot water heaters, too. It has been estimated that customers reduce utility bills up to 50% with natural energy. They reduce water heating costs by up to 90%. Installation of renewable energy equipment entitles customers to State and Federal Tax credits. Their savings and rebates make conversion cheap enough to pay for new equipment in a fairly short time.

Solar Solutions Help Save the Earth

When fossil fuels like oil are used to create energy, they generate tons of pollution every year. Energy professionals estimate that an average home consisting of four people emits about eight tons of carbon dioxide per year. That is almost twice what their car produces. However, the renewable energy created from the sun helps keep the air clean and fresh and conserves natural resources.

Solar Solutions Are Reliable

Now that many companies have had years of experience perfecting solar equipment, providers can offer reliable products that last a lifetime. Technicians are now experienced with the latest technology and can offer clients a variety of money-and-earth-saving energy options. Many Hawaiian solar experts have become respected members of their communities and residents now rely on them for quality solutions.

Solar energy is popular in Hawaii because it helps save the environment while saving customers money. In addition installers can now offer customers a variety of solar solutions and provide quality equipment at affordable prices.