So you have decided to buy one of the many Garmin GPS systems available. You’ve spoken to everyone you know, and now you need to start getting information together – how much do you want to spend on your Garmin GPS system? Where will you be putting your new Garmin GPS system? Which one of the Garmin systems are you going to pick?
First, you need to undertake various Garmin GPS comparisons. There are many versions available, for many types of vehicles and requirements. When comparing Garmin GPS navigation systems, it’s best to go with what is best for you, not what someone else has or what might seem the best simply because it is the most expensive. For example, you may have been recommended a Garmin GPS handheld unit by a friend who does a lot of bushwalking, but as a boating person, a handheld unit would not be as useful to you. Similarly, a Garmin portable GPS system is great for someone who is in and out of a car, as they need to take it with them to prevent theft. However a fixed Garmin global positioning system would be better for someone who has no need to be removing it from its mounting all the time (or someone, like a courier, who is in and out of their vehicle more times than they care to think about!). You definitely don’t want your Garmin GPS system to be a hindrance!
Compare Garmin global positioning system prices, and see if it might be cheaper to purchase a Garmin GPS system online. Many places sell Garmin global positioning systems online, so be sure to have a look around as it may be cheaper (even taking into account postage) to buy your Garmin GPS system from an outlet that does not have the overheads a physical shop-front might have. The issue with shopping online is, of course, not being able to ‘play’ with your new Garmin global positioning system. But a trip to the local GPS shop may fix that.
One of the Garmin GPS systems available is the Garmin 2720 GPS. This particular Garmin GPS system offers many features, including the ability to program points of interest (such as speed cameras and school zones) so you need never be caught out again. The flashy Garmin 360 GPS doubles as a personal assistant, boasting facilities such as MP3 players, a translator, and Bluetooth capabilities enabling you to make hands-free calls. Another good pick is the Garmin c530 GPS – ready to go straight from the box, this unit is a good pick for those needing an ATM or petrol station quickly – just touch and go!
Garmin GPS systems offer it all; the hardest part is picking which one you like. Read some Garmin global positioning systems reviews, which are usually unbiased and give both pros and cons for each model. With a Garmin GPS navigation system, you can’t go wrong!
By: Chaz Newman
Top Causes of GPS Interruption
February 8th, 2010 by admin No comments »
One of the first reasons you might suffer from GPS interruption, is the U.S. Government. They perform interruption tests on GPS systems quite often and there is really nothing you can do about it. You might experience interruption in the following places:
China Lake, CA Lax, CA Cedar Rapids, IA White Sands, NM Cape Canaveral, FL Patuxent River, MD Rancho Bernardo, CA Nellis AFB, NV
Another cause of interruption is shutdown of two Wide Angle Augmentation System satellites. This system is used as a no-cost differential correction signal for GPS. They are maintained by the FFA or Federal Aviation Administration, but are also available to civilians. The reason for this error is because some systems require the WAAS correction to operate properly. If you think you are experiencing this problem, you need to update your GPS system software. Most GPS manufacturers have information posted on their websites about firmware updates that fix problems just like this.
One of the most common reasons is objects blocking a GPS signal. An expert was quoted saying, “anything that can block sunlight can block GPS signals.” This could be anything from a building, tree, bridge, or even a vehicle. The only way to solve this problem is to move to an open location that can receive a signal.
Additionally, signals can be interrupted by disturbances in the atmosphere where they must travel, and the ionospheric layer is sensitive to solar disturbances which are currently at a solar maximum of an 11 year cycle. One could certainly expect frequent interruption for several years before a lull in the cycle.
By: Chaz Newman
What Is GPS and How Can It Be Used?
February 8th, 2010 by admin No comments »
GPS stands for Global Positioning System and was initially designed to be used by the U.S. military and is operated by the U.S. Defense Department. This system consists of 24 satellites, these satellites are 12,000 miles above us, are constantly moving in a precise orbit, have an atomic clock, and are solar powered. They do have a battery backup so they will continue to run in the event of a solar eclipse, and each satellites has a small rocket booster to maintain their orbit. The first satellite was launched in 1978 and it wasn’t until 1994 when there were a total of 24 satellites. Each satellite has a life expectancy of about 10 years, so new satellites are constantly being built and launched. Each satellite weighs about 2,000 pounds and is approximately 17 feet in width when the solar panels are extended. In the 1980s the GPS became available to the public, and although it is still maintain by the U.S. Defense Department there is no charge for its usage by the public.
These 24 satellites orbit the earth twice a day and continuously sends the location of the satellite. A GPS system can tell how far a satellite is away by comparing the time difference between the time a signal was transmitted and the time it was received, the longer it takes the signal to be received by a receiver, the farther away the satellite is. If a GPS is receiving signals from three satellites it can calculate latitude and longitude. Altitude can be determined if the GPS is receiving signals from four satellites.
GPS can be used for navigating your car through traffic day-to-day or tracking a fleet of vehicles. Not only can a driver use a GPS for directions the main office knows where that vehicle is and the speed of the vehicle. GPS can be used while on vacation for activities such as hiking, camping, or hunting. Is your passion fishing but get frustrated trying to find the fish? With a fish finder which uses both GPS technology and sonar you’ll know exactly where to go to find those fish. GPS technology is also being used as a way to track your pet if he wanders off or to safeguard a pet from being stolen.
Another use for GPS is as a child finder with a receiver in a child’s cell phone or wristwatch to ensure a child’s safety. It can be used in a teenager’s car in order to both know where they and how fast they are driving. This could also be used to keep track of someone who tends to ‘roam’ but is not capable enough to find there way back; i.e. someone with Alzheimer’s disease.
As GPS technology improves, it uses will increase. Who knows where it will take us next?
Copyright 2006 Angela Carter
By: Angie Carter
