GPS Systems and Reviews

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Things to consider before buying a portable GPS device

portable gps
Portable gps devices are quite convenient.  You can take them anywhere.  This is the number one reason why many people wants one, especially those who are into such sporting activities such as hiking, hunting or camping.  

Since they are affordable many more people are able to buy them now.  Yet, before you go off and buy one you should consider a few things.

First, you should understand how a GPS device works.  GPS stands for global positioning system.  It works through a computer system and satellites which orbits the Earth.  Together, these computers and satellites can pinpoint a precise destination, person or find directions to a certain spot.   They can do these by tracking simple radio, computer or other modem technologies. 

GPS systems was first introduced by the Defense Department for military purposes.  But now they have advanced to the consumer market as well.

A portable gps system is one that can be carried around easily or moved from point to point easily.  They can come in a number of sizes.  They also have a variety of capabilities. Of course, the more functions a unit has, the chances are the more expensive it is to purchase.

Before you go shopping for your next or first portable GPS device, it is a good idea to actually think about the capabilities or functions that are actually necessary for you and your needs.   By doing this, you may be able to fight the urge to buy a more expensive model, with extra functions, that aren’t really necessary for your use.

One thing you should realize is the fact that you may have to purchase a higher price device to get a good signal.  All GPS systems must have a clear access to the sky in able to work properly.  If buildings, trees or vegetation blocks that access, the system can not function or signals will drop off and on.   If you plan on spending a lot of time in these types of areas (for instance hiking in a forest), then you may need to purchase a GPS device that has a higher frequency level and this means that it will more than likely have a higher price tag as well.

What else should you consider?

What about the time in which it takes the GPS device to start?  Some systems, even the portable ones, will start quicker than others.  Some have what is considered a long or cold start up time.  This means it could take a few minutes before it is up and running.  Are you the patient type?  Will this annoy to no extreme?   Inquire about the start up time when purchasing a model.

What about the time it takes to charge the battery or batteries?  Most portable GPS devices will run off of the common AAA battery or a built in rechargeable battery.   You should inquire about how long it takes for the battery to charge and the estimate time of life for the battery or battery charge.  Generally, the first charge will take the longest amount of time.

Mapping capabilities is definitely a consideration that must not be overlooked.  This is how you will find your way from place to place.  You need to not only be able to understand it.  You need to like the size of the screen, the format, the color and even the style.   Colored screens usually cost more than the black and white ones do.  But most people prefer these because they say they are easier to understand and read.

You should also inquire about how the unit is able to update its mapping functions.  The two basic ways that portable GPS devices do this is by connecting to a computer or a flash memory card.  (Generally speaking those units that can connect to the computer to update their map functions are usually cheaper than those that uses flash memory cards).

You should also consider the type of device you want.  You can choose from such devices as:

Pocket sized portable GPS which usually runs from recharegable batteries.  These can also be used in automobiles.

PDA’s devices which are equipped with GPS capabilities.  These usually run on rechargeable batteries.

Cell phones that are equipped with GPS capabilities.   These are also run from rechargeable batteries.

If you are considering buying a new or your first portable GPS system, you will be glad to know that you won’t need to hire anyone to install anything.  You just turn the system on and it is ready to go.  You also don’t have to pay any activation fees or monthly payments.  If you choose to purchase a subscription such as traffic information, satellite or weather information, then you will have a subscription price.

Your final consideration is this.  Would a portable GPS system make you feel more secure the next time you are out on the hiking trail or looking for that cool vacation site?

 

 

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Tips for Greater GPS Accuracy and Locations

Do you realize that you can get greater GPS accuracy by doing a few simple tips? Most people think all you have to do is turn it on and your done. Well in a sense that is true, but to get the best and most accurate readings there are a few tips that will help you accomplish that. We have compiled some tips to help you get the most from your GPS receiver. Read further, discover, and implement these tips for better coverage and accuracy.

Turning on your GPS receiver is something that many people really do not pay much attention too. Many times this is why you do not always get the kind of reading that you are looking for when you start off. First always start it outdoors and in the widest space possible. Try to stay away from buildings an any large geographic formations and trees. This will give you a much more accurate reading. Being patient when you first turn on your receiver is also something that you will need to learn. We all like to just turn it on and go, but giving it some time to lock on the satellites will give you much better readings than if you just turned it on and went. Wait for at least three satellites to be utilized. The more that you can get a fixed on though will give you much greater accuracy which is what we really want anyway.

Look over the PDOP measurement on your GPS unit. The PDOP measurement will provide you with a general measuring stick for accuracy. It will measure the geometrical strength of your GPS satellite configuration. Set the minimum speed on your unit. The minimum speed is an application on your GPS that tells you what you’re doing hiking, driving, walking. The main reason for this is it will give you a much more accurate reading if it knows what the intended method of travel happens to be. Using waypoints to get a more accurate reading. This is another option that you have, but if you do use this method, there are some things you should know. First of all come to a complete stop when making a waypoint. Secondly do not move at least for 20 seconds or more prior to setting the waypoint. This time is needed for the GPS system to realize that you have come to a complete stop and you are not move this will give you a good accurate reading as well.

Disable the static navigation is you are a Sirfstar III user. The reasons for this are if you do not disable it, your readings at pedestrian speeds could be adversely affected and give you a reading that is not as accurate as you would have hoped for. Most people who use these tips above find greater results than if they do not use them at all. Instead of just doing it your own way why not give these a try and see how much easier it could actually be on you.

A quick overview of getting accurate GPS readings is the follow. Make sure that you are outdoors and in a wide open area before turning your unit on. This will eliminate bounce and give you a better reading than any other way. Secondly, give your receiver time to get a fix on the satellites. Do not rush it as the longer you let it get a good fix the better and more accurate reading you will receive. Three satellites is a good starting point, but the more the merrier as you will get more detail readings that way. If you need to make waypoints make sure you come to a complete stop for at least 20 seconds before you even try to set into your GPS unit.

There are many different things that affect the accuracy and readings of a GPS unit. Most people just do not realize that and tend to blame the unit or something else on the problem. If you follow, the tips we gave you above you will get more accurate readings and it usually will take you a lot less time than any other way you do it. Accuracy is very important in things you do in life and if you are traveling, you want fast accurate records quickly. The factors that can effect this of course many you cannot control, but after a few using these tips a few times you will be better prepared and more knowledgeable in how to get more accurate readings all the time.

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