If you are a technology and gadget addict, you’ve probably heard and seen and experienced the power of GPS navigation systems! Today, GPS navigation is becoming quite common and GPS devices are all the rage. These small sized systems stored a whole lot of information and can prove to be very helpful, especially if you visiting places you’ve never been to before.
More than that, GPS navigation systems make for excellent gift choices. Trust me, if your partner or friend travels the world, a GPS navigation device will be the ideal gift on their next birthday. Packed with incredible features, these devices are easy to use and fun. However, due to the numerous models and designs available, choosing a GPS system can be very confusing. So, sort through this mess with this quick guide and pick the best GPS navigation system for you.
The GPS navigation systems market is a very competitive one. You can give models with similar features from different manufacturers and at different prices. Typically, the price for these devices ranges from $150 to almost $1000, depending on the features. GPS systems come with a wide set of technology driven features that can make choosing the best one in your budget a challenge. While most manufacturers offer features like FM transmission, Bluetooth, multiple route numbers, live weather, traffic updates, losing yourself in this sea of complexity can be overwhelming, especially to a relatively less educated buyer. So let’s start by understanding these complexities one at a time.
Now, like most appliances and gadgets there are several players in this field too. However, it’s best to go with the bigger and more reputable manufacturers as you can sleep peacefully knowing that your device will be supported and serviced. The biggest players in the GPS navigation systems market are: Garmin, Tom Tom, & Magellan.
Garmin GPS navigation systems are known for their wide range, their superior quality, and excellent technology. Tom Tom is a relatively new entrant in the market and has managed to capture a sizable chunk in this space by offering competitively priced, quality products. However, it is Magellan that was the pioneer in the GPS industry!
So what about their features? Broadly speaking, all GPS devices come with a touch screen interface, voice directions, a database of ‘points of interest,’ auto-calculate the distance facility among other things. So, if this is all that you demand from the GPS device then you can pick one up for around $150 from any of the biggies.
However, if you want a more feature packed device then you’ll also have to pay more. By spending a couple of hundred dollars more you can get an integrated Bluetooth feature for hands-free voice calling, extensive maps, real-time traffic and weather conditions and a bigger points of interest database.
Finally, GPS navigation systems that calculate the distance between multiple destination points on different routes are the most expensive devices in the market. So depending on your budget and requirements, you can easily buy a GPS device for around $350-$400 and never be lost in a new city again!
By: Hayi Mansoor
Posts Tagged ‘Garmin Gps’
How Accurate is GPS?
January 27th, 2010
The answer to this question keeps changing along with advancing technology as well as United States law. The first consumer GPS receivers on the market were far less accurate than the receivers available today even though the satellites are the same. Also, before the year 2000, the military intentionally introduced inaccuracies into the civilian GPS signal for “security” reasons. They called this intentional signal error “Selective Availability”. In May of 2000, President Clinton made a decision to turn off SA and allow civilians access to increasingly accurate GPS signals. The military still has the ability to turn off or introduce errors into GPS signals at any time and with no notice but this ability is generally only used for specific reasons of national security.
The best consumer GPS technology available as of 2007 achieves an accuracy level of 15 to 30 feet under normal conditions. Garmin, currently the most popular manufacturer of GPS receivers, claims their GPS units are accurate to within 50 feet 95% of the time. Even within the Garmin GPS receiver line, accuracy specs differ because of the different chips used in the design of different receivers.
GPS Receiver Design Affects GPS Accuracy
If you are looking for the most accurate consumer GPS unit, it’s important to pay attention to the unit’s chip type. The latest technology in GPS receiver chips is the SiRFStar III from SiRF. With this chip in your receiver and WAAS enabled you can expect to reach the best GPS accuracy levels available under current conditions.
Environmental Factors Affect GPS Accuracy
Many different environmental factors can also affect the accuracy of your GPS receiver. Heavy tree cover, tall buildings, deep canyons, and any location in which your view of the sky is limited can affect how accurate your GPS is. Atmospheric conditions can also degrade the accuracy of your GPS unit.
As you can see, there is no easy answer to the question “how accurate is GPS?”. However, you now know the main factors that can affect GPS accuracy.
By: Markus Hamilton
