Global Positioning System (GPS)

By Alexis Kenne

You should know the facts about the GPS system. Here it is:

The Global Positioning System (GPS) is a global navigation that is based on satellites system. This system was developed by the United States Department of Defense and the US Air Force 50th Space Wing managed it. It is the only navigation satellite system functioning in the world today and its made up of 24-networked satellites placed in orbit. It works wherever with no subscription fees, 24 hours a day, no matter what the condition of the weather.

GPS satellite navigation was first put into operation in 1993 when the military used it in operations as NavStar GPS satellite. This was almost thirty years after the system was originally tested. The GPS became available to civilians after its launch and among the first people who made use of this service were pilots and surveyors who needed to get exact distance measurement. At first, the cost of the navigation satellite system was very high and it required subscribers to have ongoing subscription service. The average car owner at that time was unable to afford the GPS auto navigation system.

Over the past couple of years, the cost of installing a GPS auto navigation system has fallen considerably. As an inevitable result of this, more and more people are taking advantage of it in order to make it easier to find out where they are going, plan their journeys, and keep track of where they are.

Never make a mistake that the auto navigation system it was only meant for people who travel extensively. Its not. Actually, it is for anyone who spends long hours in their vehicle driving. You may be interested in knowing how these navigation system devices can help you in a way you really need, especially when travelling. To make the most out of it, you should know what benefits it can give you and how the auto navigation system will suit your needs.

The different auto navigation systems available in the market today are the following:

1. Stand-alone auto navigation system

This stand-alone navigation system can provide the traveler with full-detailed directions as it works as a travel guide.

2. Multipurpose Handheld Navigation Devices.

Unlike the stand-alone system, this multi-purpose navigation device does not provide full detailed directions but it has other benefits not found in the former device.

3. PDA/PC/Laptop/Palm Based Systems

Using your laptop and other palm based devices you can navigate wherever you want when you turn them into a navigation system for your travel purposes.

Listed below are the different ways the auto navigation system and GPS technology can help you in any of your journey:

2. Keep track of restaurants, malls, or theatres. While you are in travel, there are some points that you might need to eat some or stop for a while to take rest. Doing these in a mall, theatre, or some restaurant is a great option.

Goodbye to the days when the one-hour-drive was multiplied into more number of driving hours because there was no direction to take. And not very long, gas tanks ran out of fumes and cars generally got stranded in the middle of unknown dusty roads.

With the GPS auto navigation system, travelers can say so long to those days of endless driving, asking directions, gas guzzling and getting lost who knows where.

The GPS system made available these navigation systems to help people travel easily giving them routes where they can travel in a more direct route, saving time, instead of spending long hours of driving and traveling. Through the GPS system, it is now easier to tell which direction is better way to go to reach the desired destination without wasting so much time, money, and energy previously associated with traveling. - 21392

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Alexis Kenne wrote this article. Would you like to know more? There are more informations on auto navigation system and gps sat nav Technology. visithis site for gps navigation systems .

15 times optical variable Sony 60G hard disk 220E mad killing 1K

By Zou cheaponsale

Sony DCR-SR220E is a location in the home market, hard drive-based digital video camera. It is equipped with a 2,360,000-pixel and 15 optical zoom Carl Zeiss Vario-sonnar lens, built-in 60GB hard drive and support the massive Optical Image Stabilizer feature, in addition to face recognition and has a smooth slow-shooting practical features such as rich, The camera dropped before the 1000 sales, cost-effective improved significantly, the current price for the latest Product 4646 yuan, purchase also receive packages and UV mirror and film.

Sony DCR-SR220E Sony SR200E are upgrade models, the two designs are almost the same. In order to reduce airframe weight, SR220E used plastic airframe, airframe size 76.3 76.6 112.8mm, the net weight of 360g, small compact body convenient one-hand operation implementation. Screen area is equipped with a 2.7 inches 211,000 pixels 16:9 rotating LCD screen, support for touch-wide operation. Its built-in 60G hard disk capacity, and support data protection technology, when hard drives falling, the sensilla can be caused by induction to the ground suddenly accelerated, quickly recording heads away from the hard drive to protect data from external hard disk crash influence.

Sony DCR-SR220E lens details

Sony DCR-SR220E using 1 / 5 inch CMOS sensor, 2.36 million effective pixels, with 15 optical zoom Carl Zeiss Vario-Tessar lens, support for 180 times digital zoom, and can shoot four million pixel still images. It supports the slow shutter function for low-light camera. Its built-in enhanced processor, can significantly reduce image noise to ensure clear and stable shooting video and photos. It is also equipped with Handycam docking stations, through USB or AV-ray cameras can be connected to the computer, TV or DVD recorder.

Sony DCR-SR220E operating area as well as the display

PConline Product - Specification Parameters Model: DCR-SR220E Lens: Carl Zeiss lens, Aperture :1.8-2 .6, f (focal distance) :3.1-46 .5 mm, f (35mm conversion): Dynamic model: (16:9) :40-600mm, (4:3): 49-735mm, the static model: (16:9) :40-600mm, (4:3) :37-555mm, filter diameter: 30mm Sensor Pixels: 2,360,000 pixels Static effective pixels: 1,490,000 pixels Optical zoom multiples: 15 optical zoom Sensor type: CMOS sensors Sensor Size: 1 / 5 inches Types of storage media: hard disk, 1.8-inch, 60GB / Memory Stick PRO Duo, Memory Stick PRO Duo (High Speed), Memory Stick PRO-HG Duo, Memory Stick Micro (the use of orchestration) 4 LCD LCD screen: 2.7 inch, 16:9 widescreen touch 211,000 pixels More details please click to enter the Product

Edit Comment: The camera has a very sharp price cut, all of a sudden drop from 5000 yuan to 4000 yuan mid-range, close to entry-level cameras. Sony DCR-SR220E compact appearance, convenient to carry, 60GB storage capacity and configuration sufficient to meet household, it also has a variety of practical features, expanding the scope of application of the camera, focus on practical function of home users may wish to look at. - 21392

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