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Firstly, what is a Satellite phone?

A Satellite Phone is effectively a mobile phone which uses satellites for communication, rather than cell like standard mobile phones. Due to the fact that they can be used all over the world they are ideal for use in Crisis Management situations. There are three satellite phone networks that are currently in operation:

•Iridium
•Globalstar
•Thuraya Iridium

With the increase in the use of Satellite phones over the last couple of years it has been made even more possible and practical to leave home and go places. Since signals may be obtained from virtually anywhere on the planet, satellite phones are being viewed as the next best thing for global travelers. But even the satellite phone has its weak points. As with all satellite driven devices it requires a clear line of sight connection to the satellites in order to make a successful connection. Due to this, depending on the wearabouts of your location (i.e. in a building etc) there could be problems with dropped calls or noise interferance.

What causes a dropped call?

Because satellite phones require an unobstructed line of sight this means that, for the phone to be reliable you need a clear view of the sky from where the call is being initiated or received from.

Any obstructions such as high rise buildings, heavy clouds or trees could affect the signal meaning that the quality of the voice may not be great or a call could get dropped if the signal is lost altogether.
Any object that obstructs the line of sight of the satellite phone or the antenna will result to a lower signal strength, which in turn can result to dropped calls.

Another factor may be electromagnetic interference caused by proximity to very powerful transmitters. This can affect the strength of the signal or the quality of the call. Weather isn’t usually a factor for dropping calls, however, seriously adverse weather conditions could have an effect on the quality of the call if atmospherics interfere with the satellite connection. Generally, the use of more powerful antennae or bigger satellite phone units can also prevent the frequency of dropped calls.

Some satellite phone systems use different kinds of handoff. The handoff simply refers to the transfer of a signal from one satellite to the next. Due to movement, satellites can only stay in view for a number of minutes and the signal it receives has to be passed to another satellite. Depending on which network you are using this can happen as often as every 50 seconds. If the satellite cannot pass on the signal because there is no satellite within view or is blocked, the user may also experience a dropped call.

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The large screen nüvi 1490T offers multiple-point routing and lane assist with junction view to help you manage busy highway interchanges. It also has subscription-free traffic alerts for most cities, hands-free calling, pedestrian navigation options and ecoRoute.

Garmin nuvi 1690 GPS comes with Bluetooth and included Traffic Receiver–features an enhanced user interface, ecoRoute, public transit mode, and text-to-speech. Plus, pedestrian navigation capability is enabled through optional CityXplorer maps, which are available for select tourist destinations in North America and Europe and can be downloaded easily directly to the nüvi. The device’s enhanced user interface features improved graphics and a slide control for menu operation, while ecoRoute suggests fuel-efficient routes to save drivers money and fuel. Also, Garmin’s public transit mode allows you to navigate using buses, tramway, metro, and suburban rail systems. Pre-loaded with City Navigator North America NT.

What’s in the Box of nuvi 1490T are nuvi 1490T Preloaded City Navigator NT for North America or Europe (full coverage), Lifetime traffic, FM traffic receiver with vehicle power cable, Vehicle suction cup mount, USB cable, Dashboard disc and Quick start manual

What’s in the Box of nuvi 1690 are nuvi 1690 preloaded with City Navigator North America NT, Vehicle suction cup mount, FM traffic receiver/vehicle power cable, Dashboard disc and Quick start manual.

Common features for both nuvi are:
1. Display resolution, WxH: 480 x 272 pixels
2. Display type: WQVGA color TFT with white backlight
3. Battery: rechargeable lithium-ion
4. High-sensitivity receiver
5. RoHS version available
6. Preloaded maps
7. Ability to add maps
8. Built-in memory:internal solid state
9. Waypoints/favorites/locations: 1000
10 . Routes equal to 10
11. Support Basemap
12. Accepts data cards of microSD™ card. The card is not included
13. Voice prompts (e.g. “Turn right in 500 ft.”)
14. Speaks street names (e.g. “Turn right ON ELM STREET in 500 ft.”)
15. Lane assist (guides you to the proper lane for navigation) with junction view
16. Auto sort multiple destinations (provides most direct route)
17. Auto re-route (fast off-route and detour recalculation)
18. Choice of route setup (faster time, shorter distance, off road)
19. Bluetooth® wireless technology (connect to your phone for hands-free calling)
20. Speed limit indicator (displays speed limit for most major roads)
21. Where Am I? (find closest hospitals, police & gas stations, nearest address & intersection)
22. ecoRoute™ (calculates a more fuel-efficient route)
23. Qwerty or ABC keyboard (choose keyboard layout)
24. Custom POIs (ability to add additional points of interest)
25. Garmin Garage™ vehicles compatible (download car-shaped icons to your device)
26. Garmin Garage™ voices compatible (download custom voices to your device)
27. Photo navigation (navigate to geotagged photos)
28. World travel clock, currency & unit converter, calculator
29. Picture viewer
30. Garmin Lock™ (anti-theft feature)
31. Touchscreen

The different features of both nuvi are:

1. nuvi 1490 comes with 5.4″W x 3.4″H x .6″D (13.7 x 8.6 x 1.6 cm) dimensions where as nuvi 1690 comes with 4.9″W x 3.1″H x .75″D (12.5 x 7.9 x 1.9 cm) dimensions.

2. nuvi 1490 comes with 4.4″W x 2.5″H (11.1 x 6.3 cm); 5.0″ diag (12.7 cm) display type whereas nuvi 1690 comes with 3.81″W x 2.25″H (9.7 x 5.7 cm); 4.3″ diag (10.9 cm) display type.

3. nuvi 1490 comes with 7.8 ounces (221.1 g) in weight whereas nuvi 1690 comes with 6.2 ounces (174.7 g) in weight.

4. nuvi 1490 battery life is up to up to 3 hours whereas nuvi 1690 battery life is up to 4 hours

5. nuvi 1490 supported fm traffic and MSN® direct traffic whereas nuvi 1690 comes with new garmin nulink services(receive accurate real-time travel information)

6.nuvi 1690 supported the features of route avoidance and garmin locate.

Read more on the comparison of garmin nuvi 1490T vs nuvi 1690. Garmin nuvi GPS blog is a good one stop resources for all garmin nuvi gps information.

Information sources : Amazon.com and Garmin.com

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All this high tech all around us are claiming easy learning curves. But there’s really no reason why the family needs to find itself stuck in a strange territory just because there was no one to ask which was the correct way. Neither is it sensible wasting precious family time stuck in slow traffic just because there was no way of knowing this freeway is clogged. Car GPS are a fascinating work of years of research for in-car use; naturally, it’s just as practical and valuable too when on used by travelers on foot. GPS devices are something to count on especially when laying out plans for a trip, and there is no difference whether what you have in mind is a cross-country trek or a hopscotch tour of your routine stops.

But car GPS is really capable of getting you from point A to point B with least possible hassle, it also spruces up your holiday, helping you to think of more important things and letting it find for you the best, say, restaurants, or how best to get to somebody’s place and still being able to gas up along the way.

Check out these car GPS travel tips to enable you to have the most out of the holiday season and skirt the travel blues.

1. If you think you will end up counting a lot on your car GPS unit, take time to tutor yourself how to use it before needing it. Take out the sedate technical booklets, and get comfy knowing what way points are (these are like the electronic “dots” on the map that you have to “connect” in order to get from your starting place to another). This measure of prudence will surely shave away tense moments on the road and prevent you from making horrible mistakes like loading incorrect information into an otherwise intelligent device.

2. Check that there are maps in your car GPS before stepping on the gas. Why not browse through them and test them just to double check? Are you also knowledgeable about the route calculation configuration of your gadget? You ought to be able to answer yes.

3. Power is an issue that cannot be underestimated. All GPS models require recharging from time to time. Ensure that you got extra batteries for the duration of the trip or have packed a universal adapter in your belongings. Battery life of GPS devices vary, and the best way to allow no loopholes is to get yourself a cigarette lighter charger.

4. Almost everybody knows the various dangers invited by a car GPS left hanging on the windshield in a hot car (or even if its just a mount, for states that allow people to do so) for long periods of time. If the heat doesn’t destroy it, thieves may still get to it. Avoid making this a habit as soon as possible.

5. Most car navigation systems have a massive POI database on restaurants along your major highway. Pick the cuisine you are after and your car GPS will show results by degree of proximity. Screen out those that are not part of your route and the next time, your forward seeking food radar will refresh faster.

6. Some car GPS devices also double as some sort of Lonely Planet travel guide, containing some helpful travel advice which may prove to be the crucial advice you need when dealing with the locals, or trying to find out the right way to drive in that place. Stay sharp with your car GPS!

Source : http://www.e-gpsdevices.com/

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Get your latest luxury GPS of garmin nuvi 1690 4.3-Inch Portable Bluetooth Navigator with nüLink! Services now from Amazon.

Garmin nüvi 1690 Technical Details:

1. Widescreen ultra-slim GPS design with 4.3-inch WQVGA touchscreen display and EDGE network connectivity
2. Pre-loaded with City Navigtor NT maps for North America, including more than 6 million name-searchable points of interest
3. Bluetooth wireless technology enables hands-free calling with a compatible phone; included traffic receiver provides North America traffic information
4. Pedestrian navigation capability enabled through optional CityXplorer maps
5. Enjoy access to Garmin’s nüLink services like weather forecasts, flight status, white pages, and more

This Garmin nuvi GPS communicates wirelessly to connect the new Garmin nüLink!™ Services. A two year subscription for this service is included in the purchase price.

Enjoy access to Garmin’s nüLink! services, with EDGE speeds for an enhanced user experience. Services available include:

1. Local Search. Access up-to-date information for the local area
2. Weather. What’s the weather forecast? Tap the Weather icon to get current and 5-day forecasts tailored for major cities around the world.
3. Flight Status. Quick access to flight departure/arrival times and gate information from airports around the world
4. Currency Exchange.
5. Traffic. Garmin nüLink! services provide current traffic data for your route so your nüvi 1690 can automatically optimize a route for the shortest time
6. White Pages.Forget someone’s address? Find it using White Pages and navigate there. Search by name or phone number — faster and more convenient than a phone book.
7. Ciao! Friend Finder. What are your friends up to? Ciao! integrates multiple third party location-centric social network applications, such as GyPSii, with more networks expected to be added in the future.
8. And more

Garmin nuvi 1690 additional features:

1. Speed limit indicator–unit displays speed limits for most major roads
2. DEM maps show you shaded terrain contours at zoom levels of five miles and above
3. Auto time zone–nüvi will automatically adjust your time zone while navigating
4. Trip computer records mileage, max speed, total time and more
5. Built-in travel kit includes features such as picture viewer, world clock, currency and measurement converters and calculator
6. microSD memory card expansion slot for optional mapping and data storage
7. Includes Garmin Lock anti-theft feature
8. Configurable vehicle icons–allows users to select fun, customized car-shaped icons; download additional choices from www.garmingarage.com
9. Offers a 3-D mapping perspective, or 2-D overhead view
10. Built-in lithium-ion battery–lasts up to four hours depending on usage
11. Includes sturdy suction cup mount that allows for easy adjustment and quick release
12. Simplified PC connectivity, using USB mass storage, access either the microSD card slot or the unit’s internal memory directly from your PC desktop
13. POI loader program–set up proximity alerts for school zones, create custom POIs and more

See the demonstration of garmin nuvi 1690 on Youtube. Search for the following YouTube Video:

1. Garmin 1690 NuLink (2:58). This video is from Prylkoll
2. Garmin nüvi 1690 Video Demo of Features (2:22). This video is from GarminUK

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A Well Known and Popular Models of Garmin nuvi GPS

There are many garmin nuvi models that Garmin provides. A well known and popular models are like Garmin nuvi 255W and Garmin nuvi 765T.

I have gathered here, what does people actually said about these Garmin nuvi GPS.

What does people said about Garmin nuvi 255W:-

Ultimately, you buy a car GPS to get you from Point A to Point B as easily and efficiently as possible. And that’s what the 255W does best
The 255W has a really clear display that’s easy to see in any light
The Garmin Nuvi 255W connects to satellites extremely fast
I love the detour feature, it saved me a ton of time
The good – it’s a cute little unit, simple, easy to operate, easy to install
The unit seems to route well and quickly
As far as the primary GPS functionality is concerned, this is one excellent piece of hardware
Hotfix to lock on to satellite signals works well
The screen is very bright and easy to see with direct sunlight
Speed of map updates is awesome. Very smooth.
Search for POI and streets are fast.
Fast recalculation of routes.
The navigation display shows more information, such as next turn street and speed limit
Good battery life
Garmin is very easy to use and has really cute slick design
Other cool features include settings way points (or points of interest) with custom icons and map flags

What does people said about Garmin nuvi 765T:-

The map is clear, the refresh rate is fast, and all of the right information is provided on-screen, including details for upcoming turns and junctions, speed limit, and traffic alerts
It turns out that the full-screen 3D Lane Assist Junction View shows up automatically before potentially tricky highway junctions
The map’s movement and fluidity is tremendous
To be short, the unit does exactly what it should and does it well
So far, with one exception, the routing has been really spot-on
The unit worked fantastic the first time I brought it to life and has had no problems whatsoever
It recalculates the route VERY quickly if you err or change your mind
Pretty much love my Nuvi 765T with the exception that the Bluetooth is not compatible with any of my cellphones!
The touch screen, sensitive reception and unintrusive traffice updates are welcome
One other feature I noticed is at night time the 765T GPS senses that it is dark and dims so the back light does not bother the driver.

However please make no mistake, like many other products, both of these GPS do have their own weaknesses.

So please do thoroughly research before you buying any Garmin nuvi GPS

Find the answers and more info to select the right gps at Garmin nuvi GPS

Ref: All those people reviews at the top are taken from Amazon customer products review.

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GPS Tracking systems were developed in the 1970s by the United States Department of Defence, GPS Technology was then designed to help improve tracking of targets such as vehicles or people.

Following the tragic events of 9/11 in New York, the demand for GPS tracking in handheld devices such as Cell (Mobile) phones and two-way radios increased so that people were able to communicate and trace others in a crisis situation.

GPS Enabled Two-Way Radios

In the last couple of years, where communications have become of increased importance, certain two-way radios now have the capability to act as a GPS transmitter. This means that, not only can you hold a two way conversation on the radio but you can also be tracked by a central control team and in the unfortunate event of a crisis use it as a panic alert device.

This is how NOMAD was born.

Nomad Tracking Solution is basically a MOTOTRBO radio system with an inbuilt GPS transmitter and panic button. The extensive applications of Nomad redefine Risk Management solutions.

Nomad transforms your Motorola Mototrbo digital radio into a state of the art hand held tracking and crisis management solution. Combining the versatility and low cost of radio technology with a tracking and emergency alert capability, Nomad is ideal for close protection teams, security, infrastructure, perimeter and maritime security and remote workers who might be presented with hostile situations.

The Nomad risk management and tracking system is a solution that comprises of multiple Mototrbo radio handsets, each handset providing the user with personal tracking, a panic button and voice communication.

Complete integration of the Nomad system into a web-based tracking platform allows operations teams to monitor all Nomad radio users on one common picture from anywhere in the world. This means that no matter where your team or troops are deployed you can easily monitor high risk situations as long as the radio and GPS transmitter remains intact and powered on.

Tracking

Each Nomad handset has an built in GPS tracking receiver that transmits its exact location back to a master handset at a central command post. The frequency of the recorded position reporting can be remotely programmed from the central managed console, from 30 second intervals upwards. Nomad is a radio-based tracking solution which means that there is no associated ‘air-time’ costs associated with the running of the system. This makes the system cost effective as it is license free. It works on a back to back radio system utilising GPS satellites for global tracking.

Panic alarm

A nice feature of the Nomad handset is the integrated panic button. This discrete alarm button, once activated transmits an audible and visual alert on the master handset and the web based tracking platform. You can also opt to receive a notification of the alarm via e-mail and SMS text to a mobile phone to nominated recipients. This panic alarm button helps the end user to alert a central communications / operations team that has the technology, through the Track24 C4i platform, to monitor each individual GPS enabled handset out in the field.

Track24 is a leading provider of global tracking and Solutions allowing companies to avoid crisis through improved risk management.

For those with responsibility for the safety of an organization’s personnel, their dependents, and for the protection of assets, we are the reliable and expert partner.

Read more on A Review Of The Nomad GPS Tracking Solution…

I pretty much use my portable GPS navigator in my car every day, like when I’m going to visit my relatives in Mississippi. I usually like to drive out there since I’m up here in Chicago, and I’d rather not take a plane. If I took a plane I couldn’t stop anywhere and look at any of the interesting things along the way – I usually plan my course so that I can see as many things as possible on the way there, but without my portable GPS navigator I would be stranded on taking just one of the interstates south. It’s just not fun driving so long without seeing anything, and I really hate airplanes – so I use mine and its map to make sure I am where I should be. sponsored by electric car conversion kit
When I do go to my aunts or grandmother’s house down in Mississippi I have to use the darn thing an awful lot so I don’t get lost on the back roads. They live a bit out of the way, so it can be very confusing, and since I don’t visit but once or twice a year it’s hard for me to remember where I am at or which way I am going. If I didn’t have the portable GPS I probably wouldn’t be able to find it for hours on end, but thankfully I have the portable GPS navigator in my car. It also helped me when my cousin, Jake, had appendicitis over Thanksgiving when I drove down there.
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He’d been complaining about pain in his stomach for a while, and we all thought he was being dramatic, until we realized something was wrong – so instead of waiting on an ambulance trying to find the house out there in the backwoods, I threw him in the back of the car and brought Uncle Zachariah with us, he’d never seen something like the portable GPS navigator before. I punched in to go to the nearest hospital and we were there in about twenty minutes without one single wrong turn. Later on, after Jake had his appendix removed he made me drive him and Zachariah back to the house (this was much later on after they did their quick operation – they said if it had been any later his appendix may have burst) and they both sat there quietly watching the little screen do its work on the GPS navigator. When we got back to the house I heard Jake begging to get one, and then I heard Zachariah begging his wife to allow it – because they were impressed.

The rest of that weekend turned into me giving everyone a ride in the car just so they could see how it worked. Later on I showed them my cell phone, which also has a GPS locator in it and I can display maps of where I am on it. They were impressed, all of their cell phones did the whole instant messaging thing, but none of them had known about the portable GPS abilities that you could also get in a cellular. Well, that’s pretty much how I use mine.
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I talked with Sam Tlecani, the owner and chief driver of Pyramids Limo, a Denver Limousine Denver Air Transportation, and Denver Car Service. A year ago Sam purchased a Garmin automotive device. The Garmin unit that Sam purchased attaches to his windshield with a special suction device. Before each fare, Sam determines, which limousine he will be using for the job, he transfers the Garmin GPS to the appropriate limousine, and he is good to go.

Sam talked with me and described some of the features his Garmin model has. Before he heads to the next destination, Sam enters the address into the Garmin GPS device. Immediately, an animated projection of the street he is on appears on the screen. A continual readout of the distance to his next turn is displayed to the right of the screen, along with an arrow showing which direction he will need to go in. At every turn Sam receives a voice prompt. As he approaches the turn the voice says, “turn left in 200 feet,” or turn right in 200 feet,” etc. If he should make a wrong turn, or if at the last minute he decides he deliberately wants to take a different turn, the Garmin automatically recalculates the route from the new street, and continues to give him instructions. When Sam arrives at the destination, the voice prompt tells him he has arrived. Sam’s Garmin allows him to download new maps, and keeps him informed about traffic conditions. The display screen can provide a 2D or 3D view of the route.

Development moves quickly in the GPS field, and even as Sam and his fellow users are enjoying the current GSP automotive guidance features, companies such as Garmin are developing a host of new features.

1) The newest models now offer lane guidance as well as street guidance.
2) Newer Garmin models automatically route the driver around congested areas.
3) Garmin and other PBS devices allow the user to purchase and download custom files. One custom file, for example, provides 6,000,000 points of interest, including food and drink, lodging, fuel stops, attractions, entertainment, shopping, transit, bank/ATM, emergency services, post offices, camp grounds, RV parks, movie theaters and more. Custom files offer anything from routing to all the nations airports to distance projections on most of the nations major golf courses.
5) Most PBS devices can only provide compass readings if the vehicle is traveling 2 miles an hour or more. With the electronic compass option, the owner can get instant compass readings even when standing still.
6) Additional features include an altimeter, warning alerts for speed and red light cameras, and the ability to interface with blue tooth and receive

GPS companies continue to develop new features at a rate that challenges the imagination. For a limousine driver, it is almost more challenging to keep up with his GPS device changes, than to keep up with the road conditions.

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There are plenty of advantages to having a GPS system installed in your car. If you have the bad luck to be in an accident and your car is out of view or in a remote location, in this situation rescue crews will be able to find your car in a snap. You may use your GPS car system for finding your way if you get lost. This is especially useful at night, when the difficulty of being lost is worsened by not having the ability to see clearly around you.

This writer once lived in the woods in England for over three years.
Although I continue to listen to the radio from time to time, I tended to ignore the huge changes occurring in real life. I first heard the alphabet soup term “GPS” while I was still living in America, but always in the context of an army or large law enforcement or rescue agency. If I heard about an automotive GPS in a radio adverts, I never knew what they were talking about, and didn’t care to discover.

Welcome (Back) To America

Moving back to America, I was in for a severe culture shock. I evaded watching television so long as I could, but my mum (who took her wayward kid in) loved it, so the TV was on all the time. I’d practically pound my head against the floor just because I couldn’t understand the commercials. My Mom had to help me understand what “bling” meant. That was a tad bit humbling.

At the time, I took computer lessons and attempted to get my head together. I certainly required an automotive GPS system to work out what I was doing. As a lark, I joined many online survey groups. I started getting free samples, and learned what a Garmin Nuvi automotive GPS was. I didn’t have much of a choice I was getting 2 or three GPS car tracking surveys a week.

Back In The Saddle Again

I realized that instead of being bothered by geeky lingo, auto GPS dashboard mounted devices were useful and simply understandable gadgetry that might help improve the standard of life. Imagine if the children of Israel had GPS car tracking units strapped to their donkeys and camels.

They wouldn’t have wandered around in the desert for 40 years. They would’ve found the best road to The promised Land before dinner.

Folks of my generation and younger get so easily lost because it is simply too perilous to go anywhere. Whenever we plan a trip, we need to allow at least three hours to get lost and then find our way again. Think about the waste of gas.

But with an automotive GPS unit, you don’t have to waste gas or time to get to your destination. I speculate how much gas is saved by using automotive GPS units.

If I return to the woods, I think I’ll take a Garmin Nuvi automotive GPS device with me. Perhaps then I could make better calls about my life.

Read more on An Automobile GPS Is Great, But The Surveys Are Exasperating…

Ask Sam Tlecani the owner and chief driver of Pyramids Limo, a Denver Limo, Denver Airport Limousine and Denver Car Service , and he will tell you that the addition of a GPS automotive guidance system to his limousine fleet has been a great advance. Sam purchased a Garmin GPS system a year ago. Prior to that, he used map quest to plan out his routes. Using mapquest meant he had to go to the Internet and print out a maps quest guide, before each fare. If he was taking a passenger to a distant part of the state he had never seen, this could mean having to stop occasionally, to be sure he had taken the correct turn. Furthermore, if he was driving in traffic or at night, it would be hard to read the instructions. And passengers in the back might be disturbed by the light, if he had to turn on the overhead to read the printout.

Now all of those inconveniences are in the past. Sam’s Garmin GPS give all directions via voice commands. Once he has entered in the destination information, he never has to take his eyes off the road. The GPS system will instruct him before every turn off. The device also provides information about which routes are crowded and moving slow, so Sam can choose to take a different course in route. The trip is smooth and interruptions are a thing of the past. Suffice it to say that not only the drivers love it , but the passengers love it as well.

How does the GPS system work? The system utilizes a network of 24 satellites in orbit around the earth. The service is free to use, and the only start up cost is the purchase price of the equipment. Sam, for example, bought his system a year ago, and has used it cost free for a year now. Positioning of the GPS is based on the ancient system of triangulation. Once the GPS is switched on, it quickly locks in to 4 satellites. Each satellite beams a signal to the limousine, which is reflected back to the satellite. The satellites compare the time it takes for the signal to return, and thus calculates the distance of the limousine from the satellites. By comparing the different distances of the limousine to the 4 satellites, the network can extrapolate the exact location of the limousine to within 15 meters. With 4 ships, it is even possible to determine the height of the limousine’s position.

Ask Sam Tlecani, and he will tell you that GPS, is a modern innovation that has made a vast improvement in the quality of limousine service.

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