GPS Information

Starting from the signal from orbiting satellites, GPS receivers are able to determine the geographic position or location in real time. There are very diverse applications of the Global Positioning System as the GPS receivers are used not only by the aviation, the marine and the military but by civilian consumers as well. The satellites spin around Earth twice a day, and their number and positioning allow for at least four to be visible at any moment you’d check the sky. Although initially, the system was planned for the use of the US military alone, it was soon opened to the public for individual, civilian applications.

There are two types of GPS receivers available for purchase: the stand alone GPS receivers and the items that require computer connection in order to function. The highest mobility is achieved with the stand alone devices, which perfectly matches car usage. Pre-installed software with route info, routing directions and maps is part of the built-in features of the most advanced GPS receivers. Some units even allow for updates on the local attractions in certain area. Garmin, Magellan, Mio, Navigon or TomTom are the companies that make the best GPS equipment available.

The devices that do not function independently require connection to a laptop, computer, PDA or smartphone. The connection of the two devices together can be established through Bluetooth technology, or with a USB or serial cable. You may have to get the navigation software separately from the GPS unit, because less advanced devices do not have it included. People nevertheless buy these GPS receivers because they are cheaper, although they raise a bit of a challenge in terms of installation.

While our ancestors had to read the stars to find their way, we can now manage to travel in the urban jungle and all over the world with automatic assistance from GPS receivers. Not all devices come with full world maps, particularly if you buy GPS modules. Most of the time, the user has to incorporate the map for a region or a country by using the download system of Google Maps for instance. From the avoidance of traffic jams, an increase in fuel economy and travel comfort to the possibility to choose the best routes possible and receive lots of practical information, GPS receivers are trustworthy travel companions that rarely fail.

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When the author isn’t using her GPS receiver, she’s a fan of best psychics, theSeattle HCG diet, and uses a Cadillac XLR windscreen windblocker wind deflector.

The first GPS satellite was launched in 1978, under the direct command of the US military forces. More than thirty other satellites have been launched ever since for military, aviation and individual usage worldwide. In the history of the Global Positioning System, more than just one GPS satellite has been lost during launches or afterwards. Some satellites were taken out of service, others required replacements for technical purposes, but what matters most is how the technology is applied in the performance of daily tasks. The decoding of the satellite signal is done by a GPS device or receiver that provides the exact geographical location according to three-dimensional coordinates.

Presently, almost any smartphone includes a form of GPS satellite navigation with different mapping support and applications. People depend more and more on GPS orientation and problems may appear if replacements do not come for the orbiting satellites that will expire in a few years. For the moment, there are management and funding issues that seem to act against the proper reconditioning of the Global Positioning System. The US Air Force maintains the entire GPS satellite structure, the economic difficulties put a lot of stress on the managers who lack funds to invest in reconditioning.

The average user will hardly notice if any of the 31 orbiting satellites will fail, because normally, four satellites at time on the sky are enough to provide adequate information. There is a certain redundancy in the way information is provided, because sometimes, six up to eight satellites can get connected to a GPS receiver for the same tasks. But in the eventuality of no real time positioning with the GPS satellite structures, we’d have to return to the use of maps all over again. The transportation systems, the maritime and military forces would suffer most if the satellites are not reconditioned.

In order to offer an alternative to the GPS satellite predominance, European states prepare to launch an independent satellite navigation system in 2010. Besides the USA, other countries that have GPS satellite dominance are Russia, China and India, that operate their own Global Positioning systems. Regardless of how things are managed in terms of administration, implementation and foreign policy at the global level, the average user will not be affected by the different modifications in the way the GPS satellite communication works. In fact, the number of GPS users will get higher because of people’s attempt to improve the efficiency of navigation.

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When the author isn’t being tracked, she has a collection of interests in psychic readings, Seattle HCG diet, and BMW Z4 windscreen windblocker wind deflector.

After waiting a long time to buy a GPS and reading many, many reviews while watching the prices go up and down, I finally pulled the trigger on a Nuvi 765T on Thanksgiving morning when I saw the price drop to $349.00 on Amazon with free shipping. I couldn’t believe my eyes when I saw the price and couldn’t buy it fast enough. Especially since at the time, the lowest price I had seen was around $460. Although it had the features I wanted, I had some reservations about getting the 765T because of several reviews that listed problems with the screen, speaker volume, bluetooth, missing features from the Nuvi 760, etc. So after putting it though its paces for a few weeks I would like to share my observations with this unit. First off I have to say I couldn’t be more happy with my purchase. In the past I had used the Nuvi 350, and several different TomTom’s as well as rental car units, and this unit blows them away. The first thing I did was to up update the firmware to v.2.50 and had no problems in doing so.

Screen: The screen on the Nuvi 765T I received is very bright and clear. The colors look great and it is just as bright as the Nuvi 350 I had used. The sensitivity on this screen is fine and there is no problem with the calibration for buttons, etc.

Sound Quality: The sound from the speaker is very good on this unit. Could it be louder? Sure. But in normal driving with the radio at regular listening volume and /or the windows open, I have no trouble hearing it at all when set to 100%. When driving without the radio, I actually turn it down to 80% as it is too much. The navigation voice (have tried several and like Australian Karen) at 100% is clean with no distortion. From some of the reviews I had read, I was expecting to have to hold it up to my ear to hear it, but it really is fine.

Bluetooth: This was one of the things I was worried about not working, but surprisingly the Nuvi immediately paired with both my, and my wife’s older Sanyo Katana phones. It also shows the phone books and the contact names for both phones. In making calls over the Nuvi, the people I have called state that the voice quality is fine and there is no echo or distortion. Although I don’t use my cell phone a lot, when I do, its great not having to hold the phone and drive at the same time. Very happy with this feature.

Traffic: I was really surprised on how accurate the traffic feature on this unit has been so far, as I wasn’t really expecting much. Perhaps the coverage is better in the Chicagoland area then other areas, but it has accurately shown where there were slow downs and congestion ahead on I-90/94, I-57 and I-355. The “ads” for the free traffic pop up from time to time, but I rarely notice them and they certainly are not in the way or distracting at all.

Routing: So far, with one exception, the routing has been really spot-on. The navigation has brought us to our unknown destination with no problems, and takes the routs I would normally take for the places I am familiar with. It even knew that our home street is divided by a drainage ditch and instructed me to go past our house and make the correct two left turns to get into our driveway when arriving on the opposite side of the street. This really surprised me! It did one strange thing though, when driving home from Chicago going south down the Dan Ryan expressway, I need to eventually merge west onto I-57 south, and for some reason, the Nuvi kept telling me to get on the Indiana toll road and go east, which would have taken me miles way out of my way. I should have brought up the turn list to see where it was going to take me, but I was in heavy traffic with bad weather and needed to keep my eyes on the road. Once I passed the exit for the Indiana toll road it “recalculated” and took me home perfectly. The only thing I could think of was that I had “Avoid Traffic” enabled and there was some heavy traffic on I-57 ahead which it may have been trying to avoid, but I’m not sure. I will turn off the “Avoid Traffic” feature and try it again the next time I travel that way.

Other Features: I love the Lane Assist, and the Junction View has come up many times in the Chicago area which is a big help. I have not tried the FM transmitter yet which a lot of people complain about not working well. The picture viewer is nice and I have loaded some pictures on it and taken it to friends houses and used it to show them vacation pictures. Since my car radio plays MP3′s I don’t have much use for the MP3 player as of yet but will try it out in the future. I loaded several POIs for various places and they work great too; giving both audio and visual prompts within set distances of the POIs.

I could go on and on, but those are the main things I wanted to share. I had read about some early complaints with this unit, especially with the pre v2.50 update, so perhaps I just go lucky with this unit, but so far I could not be happier with Nuvi 765T!

I have had my Forerunner 305 for a couple of months and I love it. This is the best tool I have ever used for tracking runs with heart rate, mileage, and pace statistics all right there at your finger tips. When you combine this device with the Motionbased web site (free) you really can not beat it. Yes it is expensive but for what it does it really rocks!!!

My experience is that I have no problems connecting to satellites and in fact I can even pick them up when sitting here inside my office. On two occasion since I’ve had the unit I have had to reboot it to get it to find the satellites but other than those two time it always connects within about 15 to 20 seconds. If fact it works so well that I’ve stopped sitting it on the ground and now I just leave it strapped to my arm and let it locate the satellites because it is so quick. As for keeping the GPS siginal I’ve had no problem. I run in the woods under trees and I have yet to lose my GPS signal and when the data is applied to the map functions in Motionbased it is spot on. It is great how well this thing works.

The complaint I have seen several people make about the unit not measuring altitude correctly is mostly resolved by using the Motionbased web site to correct the altitude readings. My unit is always +- 10 feet from one day to the next which is close enough for my purpose.

The one problem I have had (mostly operator error) is that when I’m done running I will press the stop button, the unit confirms the counter has stopped, but on two occasions when I’ve gone to up load the data I found that the Garmin Forerunner 305 kept tracking me all the way home and then kept running even in my house. The end result is that I ended up with about 20 hours of data which was a complete waste and of course had to be discarded as useless. Now I always make sure I turn the unit completely off when I’m done working out so that this does not happen any more. Problem have been solved.

Bottom line is that I’d buy it again with out thinking twice and I’d highly recommend Garmin Forerunner 305 to anyone that is interested in tracking their performance over time. It actually makes working out more fun.

A portable GPS system consists of a unit that is not limited to in-car usage. Older GPS designs require cabling and combinations either with Palms or PDAs, relying on this adaptation and on car power. A portable GPS system is a unit designed for outside usage either mounted on the bike or motorcycle or carried around when hiking, mountain climbing or jogging. Even if the functionality and the features are similar, there are lots of differences between car GPS units and portable GPS systems.

It is of paramount importance to check the calculation time, the ease of programming, the speed of satellite connection, the performance and detour options. Multiple tasks are therefore suitable and available for portable GPS or hand-held GPS units. If used for outdoor applications, the portable unit should be weather resistant and waterproof in order to allow usage in all sorts of conditions without any inconvenience. The same portable device can be used in the car, since the design of new units is adaptable to a larger number of circumstances. You can for instance use the GPS device to find alternative routes that avoid traffic jams.

How can one know which is the right portable GPS system to buy? You can try the Internet and search for comparisons between the best rated models. You can find all you need online, from price info and reviews to features comparisons and return policies. The pros and cons of various portable GPS system models make topics of conversation in many forums, and some other people’s suggestions could be really useful. It is important to stress out the fact that the navigation system should be tested for more than the vocal announcements, although this feature has a considerable significance too.

Consider the relevance of a certain feature of the portable GPS system for your personal needs. Size is also important for a portable design. If the GPS comes with a screen it may not fit your pocket, therefore, check this portability range too. Then, the price comes next on our list of criteria to be met. If you insist on buying a low-priced unit, you could be disappointed when the unit functions only half the time. Automatic rerouting and the possibility to calculate the remaining distance or travel time to destination are equally valuable in a portable GPS.

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When the author isn’t geocaching, he’s a fan of the psychic reviews, uses the hcg diet, and rides around using his Miata windscreen windblocker wind deflector.