Devices for GPS - What You Need And What's Good To Have
Posted: Sunday, May 03, 2009
by John Taylor
GPS Navigation Syst
In this article we are going to take a closer look at some devices for GPS that will be necessary depending on what you will use GPS for. Other devices will extend the quality of using GPS.
If you didn't already know it, GPS stands for Global Positioning System and is a global navigation satellite system developed by the US Department of Defense. GPS is the only fully functional global navigation satellite system in the world and it can be used freely worldwide. GPS is used more and more by companies and private persons for navigation and tracking purposes.
Receivers
The basis of the GPS system is 24 GPS satellites in six orbits around the earth. GPS receivers are tracking information from these satellites and compute this information. The output of this computing is your location as well as the bearing, distance and time left to reach a certain destination plus a few other route options. Satellites are tracked continuously so the information they generate are always in real time. The more satellites receiver devices for GPS can track, the more advantages, such as
- Better quality reception
- Quicker cold start
- Regular initialization
- You don't have to add an external antenna if you use it in an open vehicle
Resolution
The higher screen resolution your GPS has, the more clearly you can see and there is no doubt that this is a great advantage in bright daylight. High definition models have color screens and will also provide information about weather and the actual terrain.
Memory
As with computers, the more memory you have, the more you can do and do it faster. With more GPS memory space you can store more route information and waypoints. You can also get GPS Units with software that can transfer data to a PC, thus storing more data than the GPS unit has to hold. So find out how much map data and information you wish to store and then select GPS units with accordingly memory space. There are memory models with all sizes of built-in memory space.
External Antennas
In general there will be weak signals in any locations that don't have a good view of the sky. The purpose of external antennas is to provide stronger signals. When do you need that? Let's say you have a transport vehicle and the GPS tracking system cannot be placed near a window, the signals will be too weak but an external or a flip up antenna will solve the problem.
Well, this article describes only some of the devices for GPS that you can use depending on what you want to accomplish with this fantastic tool.
This Article has been viewed 189 times. (Not updated in real-time.)
No comments yet.We want your comments! If you can read this, you don't have javascript enabled, so you can't use this comment system. Please enable javascript.