GPS Applications for the Common Man

So, what the heck is GPS? What do you use it for or what can you use it for? Is it useful for you? Is it expensive? Questions, questions, questions, hmmmm.

Well, think of GPS as an electronic gadget just like your radio. Once you knew how to use your radio, you never had to know how the radio works. The same can be said about GPS receivers – almost. Almost so because radios are cheap, but not GPS receivers. You can buy radios for ten bucks, whereas GPS receivers can cost you several thousand dollars. Expensive items always attract the ‘smart’ marketers. When you are buying GPS it can be useful to know some basics of how GPS works, just enough to get a good deal at the store.

For starters let us try to understand what can you use a GPS receiver for. Similar to your radio that can play audio from radio stations, there are several fundamental capabilities of a GPS receiver. Depending on the application, a set of GPS receiver capabilities are used. The GPS receiver is capable of calculating the following:

(1) GPS user’s location in terms of X, Y, Z co-ordinates

(2) Present time and date

(3) GPS user’s velocity, acceleration,..

That’s pretty much it. Examples:

Car navigation: A GPS receiver used for car navigation would employ capability (1) of a GPS receiver. A map database stored in digital format used in conjunction with capability 1 provides the requisite navigational capabilities.

Trucking management: If you are running a business where you deliver the goods using ground transportation such as trucks – lots of them. How you do you plan the route for all the trucks such that, you minimize fuel cost, minimize the time spent for offloading the goods that you are delivering and also reduce travel time. Well now, if you had a GPS receiver in each of the trucks, you would be able to record the delivery location and time for offloading. The next time, when you want to deliver a similar item, you know which truck to load it on based on past experience.

Depending on the application, GPS receivers in the market sell in a very broad price range. You can buy one for less than hundred dollars and one with all the bells and whistles for more than a grand. The right thing for you to do is to compare a comprehensive list of GPS receivers in the market and check against your application and budget. Websites like www.gadgetknowledge.com/gps1.html can get you started in the GPS arena. What you want to look for is a listing of GPS receivers in the market, a basic understanding of the various features/capabilities that you can expect out of your GPS receiver, a list of accessories that may be useful for your application and a tutorial introduction to what GPS is all about so that you make good use of your GPS receiver.



By: Steve Kinder

About the Author:

Steve Kinder is a GPS industry veteran with extensive experience in the GPS receiver design and manufacturing. His latest hobby is to spread the knowledge of GPS to everybody through tutorials and websites.

Not very often does a single system have such a large impact on the way we live. The Internet was revolutionary, so is GPS. Get to know GPS today and keep up with it before it permeates all over your lifestyle!



Read Reviews of the Best GPS Systems Available

Some GPS Tracking Devices To Choose From When Considering GPS For Children

Many parents these days are searching for GPS for children. They are increasingly turning to technology to help them keep tabs on their kids of all ages. Most will turn to the internet to find the right device. But how can they sift through the junk to get to the right GPS tracking system? The best way for them to do this is to educate themselves on what GPS tracking devices are out there. From GPS cell phones to GPS locators in pieces of clothing, GPS devices range from the open and conspicuous to the hidden and silent. What is more is that many of these devices have two uses (dual use) and thus serve two purposes at once.

One of the most out in the open devices there is are GPS locator watches. Two of these types of GPS devices are Chitter Chatter and Wherify. Chitter Chatter one of the smallest GPS devices in the world. It resembles a wrist watch and is generally regarded to be accurate to within 300 feet. The Wherify GPS Locator Watch is, as its name suggests, a watch. However this GPS watch is resistant to water and resistant to cuts. The watch can contact emergency authorities as well as the parents if two outer buttons on the watch are held down. A very nice additional feature of this particular GPS device is that it prevents someone from removing it when its owner does not wish it. With these such devices, all a parent need to do is to log into the monitoring website and with as few mouse clicks, they can find their child.

Not to be outdone, some wireless service providers are also offering their own take on GPS tracking systems. Verizon has a monitoring service utilizing the GPS locator embedded in a cell phone. The Verizon service is called Chaperone. Sprint also has a service which is called Family Locator. One of the biggest differences between Chaperone and Family Locator is that while the Chaperone service may only be used with Verizon supplied cell phones, Family Locator can be used with any web capable phone.

Whether it is a GPS wrist watch or a GPS cell phone, these are some of more dual-use GPS tracking devices that parents can use to provide GPS for children. There are many others to choose from so parents should do as much research as they can before settling on the right GPS tracking system for their family.



By: Jerry Shepard

About the Author:

ForceofNature shows people to learn about GPS Tracking Devices as well as GPS For Children by writing articles about these and other GPS topics.



Read Reviews of the Best GPS Systems Available

Elementary Guide for GPS Tracking

is tough to find somebody who doesn’t know about GPS. But before we go through the details, it is necessary to know the very basic of the GPS tracking, so that the whole GPS tracking doesn’t seem like an alien thing to anybody. GPS means Global Positioning System, basically a bunch of satellites in the orbit, which is nearly 12000 miles above the ground level of the earth. There is another thing called GPS receiver. GPS satellites send informations to the receiver and from their user can retrieve those informations. GPS satellites will provide you the latitude and longitude of any places if you need. And then you can get photos and maps of the place. Then you can jot down everything by the help of latitude and longitude details.

There are various technologies stepped into our lives. GPS is one of the most wonderful of all off them. Sometimes, for various reasons, the cops or the people need to know the where about of their vehicles. And GPS vehicle tracking has made it even easier. GPS vehicle tracking system is nothing but a small device; and it is consists of a few small devices. All of them are installed in the vehicle. Now they will emit signal, and your receiver will catch them and interpret them. So that you can track down all the necessary details you need for your work.

You can use GPS car tracking for your own cars too. It will help you to know where your car is at that point of time. And this is the benefit of a GPS car tracking system. It can be used for personal and business need both. GPS car tracking is kind of a security system you can install in your car. Nowadays, when life is not safe anywhere, and also anytime anything can happen, it is always advisable to open your eyes, so that none can touch your belongings or things like cars or personal things. GPS receiver helps you to know if there is anybody trying to do anything with your vehicle, and you can take necessary steps at that time.

There are people who need to watch out for their dishonest employees who may misuse their company car, or can waste fuel. They use GPS tracking so that any kinds of dishonest things do not fail to meet their eyes. Also, if your car is stolen, it is tough to get your car back in your garage. But GPS has made it easier. If GPS system is installed, you can easily track the location of your car and cops can do their duty in a very short period of time. It is not possible to keep an eye on your car every time. Instead you can use GPS tracking in your vehicles and take a deep breath, because your car is traceable now.

GPS tracking can provide you with the desired peace of mind. It can provide you the mileage, top speed, location and every small detail about your car. So, install GPS system on your car, and stop worrying about it anymore.



By: tracetrack

About the Author:

Karl Felix writes about GPS. Know about GPS tracking, GPS Car tracking and GPS vehicle tracking solutions that helps to put vehicle and fleet control back in customers hands.



Best GPS Systems Reviewed

Your Personal Traveling Assistant: Portable GPS Systems

While many luxurious car models may boast of their in-house GPS navigation systems, let’s face it – portable GPS systems are a smarter alternative than their counterparts. In fact, did you know that car owners often spend up to $2,000 to add GPS systems to their cars – while similar products can be purchased for only $500? Besides, no one likes to be limited in how they can use their GPS device. With portable GPS systems, you’ll never get lost again, no matter if your travels take you on a cross-country road trip or twelve blocks away to a restaurant you’ve never been to before. So get ready to scope out the best portable GPS systems available today – and start traveling further from home with more confidence!

Garmin, a trusted name in dependable GPS products, earns big points with the Nuvi 250, a petite yet powerful Garmin GPS system that will make you feel as though you have your own personal travel assistant. Choose from contemporary colors like silver and pink (after all, your portable GPS device should show off your sense of style!) and marvel at the millions of pre-loaded points of interests in both North America and Europe. This neat Garmin GPS system is small enough to fit in your pocket or purse, yet displays its maps clearly enough to use while driving. You can buy portable GPS systems like this one for under $250.

TomTom portable GPS systems are not to be outdone. Check out the TomTom GO 930, a slick little number that counts enhanced positioning technology, voice address input capabilities and IQ Routes technology as some of its features. As always, this TomTom portable GPS device gives you real-time directions, which means that you won’t ever encounter a closed road or highway. With precise maps of the United States, Canada and Europe, you’ll never need to go through the trouble of asking for directions again. Plus, with many of the models offered at under $500, you can pick one up for your next urban or suburban expedition – without draining your bank account of your hard-earned money!

No survey of the best portable GPS systems would be complete without an innovative Magellan portable GPS product. Choose from a wide variety of models from the celebrated Maestro series – with their large touch screens and simple menu options, you’ll find yourself wanting to explore new places with your trusty traveling companion! Between the six million points of interest and the friendly voices that provide you with turn-by-turn directions, Magellan’s Maestro series provides the very best features that portable GPS systems offer – and at a price that will make you smile! Buy portable GPS devices from this line at a starting price of only $150.

With more complex roads and highway systems than ever, you can’t afford to not have a portable GPS device of your very own. Why not trade in your days spent reading complicated maps or asking for directions and go pick up a portable GPS product now – you’ll be glad you did!



By: Paul Julian

About the Author:
Paul has a blog dedicated to helping consumers choose the right GPS navigation system for them. You can check out more information and find the “Deals Of The Day” at TrackItGPS.com.



Best GPS Systems Available

Honda CR-V Special Car DVD player,bluetooth,GPS navigation IPOD RDS USB SD Slot tomtom gps navigation system, tomtom gps systems



 



Contact info:

iCQ: 497307366

MSN: playerav (at) hotmail com

Yahoo: szutility (at) yahoo com cn

Skype: suavcardvd

AOL: suav2009

E mail : sales6 (at) szutility com

Website: www suav net cn

PProduct name: HONDA CR-V car DVD player with TV, Bluetooth and GPS Navigation  

         

1) 7inch double dins car DVD player with Touch screen;

2) Built-in stereo Bluetooth optional;

3) USB interface /DVD /FM/AM/TV/AV;

4) Compatible with MP4/MP3/DVD/VCD/CD/CD-R/CD-RW, etc;

5) Uniquely designed circuitry including standby function to increase battery durability;

6) Adjustable parameters can be memorized automatically, and resume back to the default value;

7) Stable electronic-anti-shock + mechanical-anti-shock;

8) Automatic identification of PAL or NTSC systems;

9) Real time clock function;

10) One channel video input,two channel video output; Two channel audio input, three channel audio output;

11) 2 antennas input (Antenna is not included);

12) 4X 45W audio output;

13) 30 preset radio stations;

14) Multi-function OSD menu;

15) Small light available on the button of the panel;

16) Fluorescent keys available for the remote control;

17) Back rearview function (optional);

18) Universal steering wheel control;

19) CDC (multiple-disk cartridge) play control function available at option;

20) GPS navigation optional.

 

————————————————————-

SUAV INDUSTRIAL CO., LIMITED mainly produce the following products:

1, latest design multifunctional car DVD player TV GPS

 ( headrest/sun visor DVD player with game, double din DVD, in-dash DVD, car TV, etc. )

2, unique video glasses private cinema

3, various latest design MP3 MP4 MP5 player

4, portable mini DVD player

For more details about video glasses, please visit our webpage at: ODM and OEM are welcomed!



By: car dvd gps

About the Author:

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Best GPS Systems Available

Special Audi A6L / A8L / Q7 upgrade NAVI gps with 6disc box dvd player



Contact info:

iCQ: 497307366

MSN: playerav (at) hotmail com

Yahoo: szutility (at) yahoo com cn

Skype: suavcardvd

AOL: suav2009

E mail : sales6 (at) szutility com

Website: www suav net cn

Product Description

Model No.: CAV-8070AU

·iPod interface ready

·Bluetooth with A2DP

·Steering wheel control smart match

·TPMS, Tire Pressure Monitoring System (Optional)

·OBD, On-Board Diagnostic System, to show your car’s actual situation (Optional)

·Original factory wiring harness and connector

·EQ Mode display

·Graphical User Interface

·USB port, Dual zone, Screen saver, Media or NAVI SD port

·Play music and video while NAVI

·PAL/NTSC/SECAM, perfect compatibility

·DVD/VCD/CD/MP3/MPEG4/CD-R/WMA/JPEG playback

·Optional: NAVI/CDC/TV BOX/Rearview sensor/camera/Handbrake control

————————————————————————————–

SUAV INDUSTRIAL CO., LIMITED with totally 5000sqm workshop coverage, two factories ( one for car electronics, another for popular consumer digital items),Our monthly productivity reaches over 100,000 units/pcs and still increasing,We offer both potential and long-standing clients a complete supply solution.

SUAV INDUSTRIAL CO., LIMITED mainly produce the following products:

1, latest design multifunctional car DVD player TV GPS

    ( headrest/sun visor DVD player  with game, double din  DVD, in-dash DVD, car TV, etc. )

2, unique video glasses private cinema

3, various latest design MP3 MP4 MP5 player

4, portable mini DVD player

We can do the product as our customer”s idea. From outlook, PCB design to complete production.ODM and OEM orders are welcom.Welcoming interested companies to cooperate with us, we look forward to having the opportunity of working with companies around the world for joint growth and mutual success. Please feel free to contact us at any time.

Our aim for the customer solution is not merely the product quantity and quality, but also through the supply chain, using the information technology to become customer’s production line truly, to constantly optimize the product on aspect of technology, speed, cost, timing and so on, to promptly satisfy the request in customer”s changes, to realize value transfer, to enhance the competitive strength on market, to achieve the goal of long-term cooperation and mutual development.

Based on the idea of “base on sincerity, reputation first”, our company takes unity, practice, exploitation, innovation as the company philosophy, and service consciousness as the company policy. Depending on the outstanding product quality and the perfect service, with years of hard-work, our products have been sold all over the world, gaining consistent high praise from partners.



By: car dvd gps

About the Author:

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Best GPS Systems Available

SUZUKI Grand Vitara Car DVD Player GPS navigation TV bluetooth USB SD





Contact info:

iCQ: 497307366

MSN: playerav (at) hotmail com

Yahoo: szutility (at) yahoo com cn

Skype: suavcardvd

AOL: suav2009

E mail : sales6 (at) szutility com

Website: www suav net cn

Product Description

Model No.: CAV-8070GV

1) Fully Touch Screen Control, no buttons on the faceplate

2) Built in GPS system (dual zoom, music or radio workable when in GPS mode)

3) Cool and unique Graphical User Interface design

4) Built in Bluetooth for hand free call ( the current mode will switch automatically to Bluetooth mode

 5) when call coming, the calling and music in mobile can be operated in devices after switch)

Function description:

1) 7inch 16:9 Motorized flip-down TFT LCD monitor.

2) (RGB) touch screen with Graphical User Interface.

3) DVD/VCD/CD/MP3/MPEG4/DIVX/CD-R/WMA/JPEG

4) Full Touch Screen Control, no buttons on the faceplate

5) Built in TV tuner, PAL/NTSC or SECAM compatible

6) Built in FM/AM tuner

7) Built in GPS system, no need external GPS box

8) GPS(music or radio while in GPS Navigation mode)

9) GPS Navigation handwriting function

10) Built in Bluetooth for hands free call

11) Built in4×45W amplifier

12) 4ch audio output

13) 1 A/V input(1 video,2 audio), 1 A/V output(1 video,4 audio).

14) Auto rear viewing function

15) Mute at telephone calling

16) Picture adjustment (brightness, contrast, color, settings)

17) Card size Full function remote control

18) With treble/medium/bass adjust function.

19) Screen angle / Position Memory

20) USB jack

21) two SD card slots

22) RCA line out

23) Electronic & mechanical anti-shock system



By: car dvd gps

About the Author:

Audi A3 dvd gps,car dvd gps,auto dvd gps,dvd,car dvd,dvd gps,car gps,rds,tmc,tomtom gps system,audi dvd gps special,car tmc,office systems,car dvd tv,touch screen car dvd,audi dvd gps ,in dash dvd,two din car dvd,specail dvd audi,car dvd rds,car dvd play,6.5inch car dvd, 7inch car dvd, auto dvd, auto dvd gps navigation, auto dvd navi, auto dvd player, auto dvd players, auto dvd systems, auto dvd video, auto gps navigation, auto gps reviews, auto gps systems, auto navigation, auto navigation gps, auto navigation system, auto navigation systems, automobile gps navigation system, automobile gps navigation systems, automobile gps review, automobile navigation, automotive gps, automotive gps navigation system, automotive gps review, automotive gps systems, best car gps, best car gps system, best gps navigation, best gps navigation system, best gps navigation systems, best gps systems, best navigation system, best portable gps, bluetooth gps, car dvd, car dvd for mazda 6, car dvd navi for mazda 6, car dvd players, car gps, car gps navigation review, car gps navigation system, car gps reviews, car gps system, car gps systems, car navigation, car navigation gps, car navigation system, car navigation systems, car satellite navigation system, cheap gps navigation, cheap gps systems, compare gps, compare gps features, compare gps navigation systems, compare gps system, compare gps systems, compare navigation system, dash car dvd, dash dvd, dash gps navigation system, dvd, dvd for prado, dvd for toyota prado, dvd for toyota



Best GPS Systems Available

2009 Buick new Regal 7inch touch screen Specialized Car DVD Player video and audio GPS navi tv rds bluetooth CMMB,ipod,stereo in car entertainment





Contact info:

iCQ: 497307366

MSN: playerav (at) hotmail com

Yahoo: szutility (at) yahoo com cn

Skype: suavcardvd

AOL: suav2009

E mail : sales6 (at) szutility com

Website: www suav net cn

Product Description

Model No.: CAV-8070BR

1) 7-inch monitor touch screen double-Din complete car entertainment system

2) Compatible with DivX,MP4,MP3,multiple regions DVD, VCD, CD and CD-R/CD-RW,etc.

3) Built-in GPS function, OS: WIndows CE 5.0

4) Bluetooth for hands free call (play CD/DVD/FM while watching GPS navigation image)

5) Keys with touch sensor

6) OSD menu with graphical user interface

7) USB port and SD slots

8) Built in TV tuner,PAL/NTSC or SECAM compatible

9) Built in FM/AM tuner

——————————————————————-

SUAV INDUSTRIAL CO., LIMITED with totally 5000sqm workshop coverage, two factories ( one for car electronics, another for popular consumer digital items),Our monthly productivity reaches over 100,000 units/pcs and still increasing,We offer both potential and long-standing clients a complete supply solution.

SUAV INDUSTRIAL CO., LIMITED mainly produce the following products:

1, latest design multifunctional car DVD player TV GPS

    ( headrest/sun visor DVD player  with game, double din  DVD, in-dash DVD, car TV, etc. )

2, unique video glasses private cinema

3, various latest design MP3 MP4 MP5 player

4, portable mini DVD player

We can do the product as our customer”s idea. From outlook, PCB design to complete production.ODM and OEM orders are welcom.Welcoming interested companies to cooperate with us, we look forward to having the opportunity of working with companies around the world for joint growth and mutual success. Please feel free to contact us at any time.

Our aim for the customer solution is not merely the product quantity and quality, but also through the supply chain, using the information technology to become customer’s production line truly, to constantly optimize the product on aspect of technology, speed, cost, timing and so on, to promptly satisfy the request in customer”s changes, to realize value transfer, to enhance the competitive strength on market, to achieve the goal of long-term cooperation and mutual development.

Based on the idea of “base on sincerity, reputation first”, our company takes unity, practice, exploitation, innovation as the company philosophy, and service consciousness as the company policy. Depending on the outstanding product quality and the perfect service, with years of hard-work, our products have been sold all over the world, gaining consistent high praise from partners.



By: car dvd gps

About the Author:

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Read Reviews of the Best GPS Systems Available

GPS Technology and Mobile Phones

Imagine driving somewhere new, you’re lost, unsure of where you are at, and the more you try to find your way out the more confused you get. Do you know how safe the area which you’re in is, is it safe to get out of your car to ask for directions or are you risking being attacked? What if you are threatened or attacked, you have your cell phone, dial 9-1-1, but are unable to tell the operator how to find you. Imagine having an accident, or witnessing an accident, but you are unsure where you are, you call 9-1-1 but are unable to tell them where you are. Imagine becoming ill while in your car, you dial 9-1-1, but become unconscious before you can tell someone where you’re at, how will anyone find you? Imagine being on a hike or bike ride when you suddenly realize you do not know where you are, how will you find your way back safely?

The U.S. FCC (Federal Communications Commission) has mandated the E911 (Enhanced 911) which requires that the location of any cell phone used to call 9-1-1 can be determined. This program is divided into two parts; the first requires carriers to report the telephone number of the caller and the location of the antenna that received the call. The second part requires carriers to be able to provide a more precise location. This will require that the manufacturers to install a GPS receiver in all cell phones. The benefit of this not only means that a cell phone can be quickly located, but that cell phones will have the ability to receive driving directions, and to be used as a hand-held GPS out of the car.

There are two ways that a GPS cell phone can be used to get driving directions. The first is to subscribe to a GPS navigation service, which is becoming available but is limited at this time. The second way is through use of a software program. Being able to subscribe to a navigation service has its disadvantages, if you are outside your coverage area your navigation functions won’t work. Plus, not only do you have to purchase a GPS cell phone, you must also pay a set up fee and a monthly fee and be under a 3 month to one year contract.

The second way to get driving directions is to buy a software program, but you need to have a compatible cell phone. The programs and maps are on a memory card and there is no need to pay a monthly fee and since the maps are in the phone you are not dependent on a GPRS connection.

If you want to take your GPS cell phone with you while out of your car, not only are there integrated GPS cell phones, there are GPS add-ons available also.

Another advantage to having a cell phone with GPS technology is that parents know where their children are at any time (as long as they have the phone with them). Some carriers are offering this child location service as a ‘peace of mind’ feature. There is usually a monthly service charge for this service.



By: Angela Mary Carter

About the Author:



Best GPS Systems Available

GPS Navigation System – Amazing Innovation In Your Car

The invention of the GPS navigation system is not as new as most people believe; they have been around and used ever since the first GPS satellite was launched into space back in 1978. Global positioning satellites have many civilian and military applications, but one of the most pervasive is navigation.

However, using a GPS navigation system inside an ordinary automobile, is somewhat different than using it on airplane. Transportation by car is dependent on the roads that are traveled. In reality, GPS readings alone such as longitude, latitude and altitude are for all practical purposes useless when you’re driving to Aunt Mabel’s house. When driving an automobile you can end up going through urban canyons and tunnels, where satellite singles cannot get through. So a different type of GPS technology is needed for automobile GPS navigation systems.

There has been potential for years in automobile GPS navigation systems, and industry has tried various ways to implement them. In 1983, Honda introduced an automobile navigation system that was based primarily on an accelerometer, not on GPS. It wasn’t until 1990 that an automobile GPS system was released to the public consumer by Pioneer. Automobile GPS Navigation systems had yet to really come into use until Magellan released its version in the US in 1995. Since then more portable GPS systems have been developed for greater ease of use for people.

Automobile GPS Navigation System Components

An automobile GPS Navigation System requires a GPS receiver and a map database. Some systems also have drive train sensors to supplement when GPS signals are blocked for brief periods.

The database map converts the GPS portable systems coordinates into map locations, such as street names and addresses. Some map databases contain GPS coordinates for specific locations, such as points of interest or rest stops. It’s the information in the database, however, that directs you to your location, either visually or by voice. Which means your GPS navigation system is only as good as your GPS car systems map database.

Commercial Applications

Many corporations and businesses use GPS navigation system within their vehicles to dispatch and track vehicles. In various cities throughout the US, taxis come equipped with a GPS navigation system. Dispatchers at the taxi company know where all the taxis are located at any given point in time, and can dispatch them more effectively than before.

Commercial shipping companies find GPS navigation systems indispensable. In addition to being able to track where the trucks are whenever they want, they can also give the customer a tracking number, and then the customer would have the ability to track their individual package themselves.



By: Corbin Newlyn

About the Author:

Korbin Newlyn is an avid follower in the consumer electronics field. You can find more of his insights at GPS Reviews and at GPS Automotive



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Understanding the Different Applications of the GPS Coordinate

When we want to find various type of information we look in the appropriate guides. To help us find our way city streets and other countries there are gps systems that we can use. These gps units use the information that you provide them to find out where your location is. You can also use these units to find other places as well. For all of these needs you will need a recognizable gps coordinate.

You are probably thinking that the reason you want a gps is to know where you are. You never thought that you would have to know various coordinates in order to find your location. Before you start worrying and panicking you should take a look at your manual that came with your gps system.

In this manual you will be informed about the fact that the system you are holding uses signals from satellites to state your location. You will also be informed of the type of gps coordinate system that is used by your unit. Following these simple directions you can use the program to find your location using the coordinates that you receive from the gps satellites.

To make this dilemma you face fade away even more we should see how you will be receiving this gps coordinate information. The first step is to understand that your gps receiver will send signals to a number of gps satellites. As the signals travel at a set pace the gps unit will have the ability of calculating the position and the distance of the satellites to the receiver’s position.

The receiver will also use the signals from about two other gps satellites to get accurate information. From this information the gps unit can then ascertain the user’s position in relation to the information from the satellite.

The gps coordinate receiver has two different applications. There is the original military usage receiver and the civilian gps receiver.

Of these two devices the military based gps system is more accurate in displaying the gps coordinate information. This has not however stopped civilian manufactures from trying to develop their gps units to receive coordinate information much more accurately. This updating of the gps coordinate information becomes even more accurate with each new generation of gps systems and receivers.

While this information may seem to be confusing there is only one fact that you need to keep in mind. This is the reason why the gps receiver is in your possession. With the calculations from the gps satellites the gps coordinate receiver will be able to pin point the position you are in and the distance to the place that you want be at. This is the only reason for you to have a gps handheld unit in your possession.



By: Muna wa Wanjiru

About the Author:

Muna wa Wanjiru is a Web Administrator and Has Been Researching and Reporting on GPS for Years. For More Information on GPS Coordinate, Visit His Site at GPS COORDINATE



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GPS Tracking System – How Its Components Work

Born of the best minds from a concept so simple is an exceptional

complex system, the GPS tracking system. It is made up of three

componentsL satellites that orbit the earth, control and monitoring

stations and the GPS receivers. It is a radionavigation system

providing reliable positioning, navigating, and timing services not

just for the military but also to civilian users as well in any part

of the world. The GPS tracking system has drastically changed the

world of navigation through land, sea and air, in all weather, 24/7.

The Global Positioning System (GPS) is a U.S. space-based

radionavigation system that provides reliable positioning, navigation,

and timing services to civilian users on a continuous worldwide basis

– freely available to all. For anyone with a GPS receiver, the system

will provide location and time. GPS provides accurate location and

time information for an unlimited number of people in all weather, day

and night, anywhere in the world.

In the 1960s the U.S. Navy and Air Force worked together on a number

of systems that would be able to provide a variety of navigation

applications. In 1973 the Department of Defense aimed to direct the

services in unifying their systems. The concept of the tracking

system would be atomic clocks onboard satellites was tested

successfully by an earlier Navy program called TIMATION. The Air

Force would operate the new system called the Navstar Global

Positioning System. From then on, it has since been known as simply

GPS or Global Positioning System.

The GPS tracking System Satellites

Today’s GPS Operational Constellation is funded and controlled by the

U.S. Department of Defense and being operated by the U.S. Military.

It is comprised of three major components: a “constellation” of

satellites in Earth orbit, ground stations that controlled the system

and receivers hand carried by the users. It was so designed so that

these receivers could be made small and inexpensive and would not

require atomic clocks.

The GPS tracking system is an aerospace technology comprising of at

least 24 operational satellites at all times. Each satellite is on a

circular orbit 20,000 kilometers above the Earth on a 12-hour period.

In order to make sure that these satellites are detected from anywhere

on the surface of the Earth, the satellites are divided into six

groups having four space vehicles each. The six orbital planes

completely surround the Earth, equally spaced 60 degrees apart and at

an angle of about 50 degrees with respect to the equatorial plane.

Each group is assigned a different path to follow. The orbit altitude

is such, that the GPS satellites recapitulate the same ground track

and configuration at approximately over any point each in 24 hours.

The GPS tracking system’s navigation message consists of time-tagged

data bits that mark the time of transmission of each subframe at the

time they are being transmitted by the space vehicle. A data bit

frame consists of 1500 bits divided into five 300-bit subframes and a

data frame is being transmitted at an interval of 30 seconds. There

are three six-second subframes containing orbital and clock data.

Precise clock corrections are sent in subframe one and orbital data

sets or ephemeris data parameters for the transmitting space vehicle

are sent in subframes two and three. Various pages of the system data

are being transmitted in subframes four and five. So the GPS tracking

system has an entire set of twenty-five frames or 125 subframes

creating the complete navigation message sent over a 12.5-minute

period.

The GPS Tracking System Equipment on the Ground

Ground stations are used so that each satellite orbit are accurately

tracked. The GPS tracking system has ground stations which is

comprised of a receiver and antenna, as well as communication tools to

transmit the data to the data center. When the GPS satellites supply

specially coded signals, the omni-directional antenna at each site

picks up the signals and that is processed in a receiver. The

receiver then separates the signals in various channels for a

particular satellite and frequency at a particular time. Once the

signals are isolated, the receiver now decodes them and splits them

into individual frequencies to calculate position, velocity, direction

and time anywhere on Earth.

At least four GPS satellite signals consisting of space segments are

used in computing positions in three-dimensional locations – latitude,

longitude and altitude – and the time offset in the receiver clock.

All GPS tracking system satellites have synchronized operations so

that the signals are transmitted at the speed of light to the

equipment on the ground. Each GPS satellite broadcasts data

indicating its location and current time.

Since the GPS tracking system sites are constructed throughout the

world and are being monitored by different institutions worldwide,

there are many different data center locations. The role of the data

center is to both monitor and control the GPS tracking system

stations. The data center uses an automated computer system in

retrieving and analyzing data from the receivers. Once processed, the

data, including the original raw data, are sent to scientists around

the glob for use in various applications.

From laboriously built landmarks by our ancestors to shooting the

stars to chronometers to satellites, our technology has evolved faster

than we could ever imagine. The GPS tracking system is the most

recent and significant advancement in navigation and positioning

technology. This new constellation of artificial stars serves this

important need for both the military and civilian users and is now

fast becoming important in everyday life.



By: Abhishek Agarwal

About the Author:

Abhishek is a passionate about Global Positioning Systems and he has got some great GPS Secrets up his sleeves! Download his FREE 109 Pages Ebook, “GPS Made Easy!” from his website http://www.Auto-Whiz.com/12/index.htm . Only limited Free Copies available.



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