GPS System for iPhone (SAB-IG028)

GPS System for iPhone (SAB-IG028)
1) Navigation software with handwriting and TTS functions. (the content can be transferred into sound by speakers)
2) Navigation maps--the latest navigation map since Fall of 2008.
3) Best quality framework: International brand-Sirf III GPS receiver, providing high sensitive, fast speed, and accurate positioning for
iPhone 2G, 3G and I-Pod Touch.
4) Power Management: Recharge continues when navigation function is used and therefore, it will not drain iPhone's power.
5) Volume Management: Built-in speakers (in pair) can solve the low volume problem for iPhone 2G and I-Pod Touch as well as improve volume output for iPhone 3G
6) Car power-adapter and Installation CD in each package.

Trimble 5800 GPS System

The Trimble 5800 is an ideal solution for the surveyor that needs a simple, straightforward GPS solution that performs under the most rigorous conditions. With flexible options for system configuration and upgradability, the Trimble 5800 is a smart long-term investment. Designed to bring the Trimble experience to more customers than ever before, the new Trimble 5800 receiver provides scalability options to meet a variety of needs and to grow with your business:

	The Trimble 5800 GPS offers:
•	Start with an efficient L1 receiver as a base or a rover
•	Upgrade to L1/L2 dual frequency to initialize surveys faster.
•	Purchase or upgrade to the full solution - L1/L2, RTK to maximize productivity and eliminate the need for post-processing.
•	Scalable and upgradeable.
•	Configurable as rover or base station.
•	Flexible field control options.

Trimble R3 L1 GPS System

The Trimble® R3 GPS system is a complete L1 GPS postprocessed solution from the industry leader in GPS surveying technology. Combining an L1 GPS receiver and antenna, rugged handheld controller, and easy-to-use field and office software, the Trimble R3 system brings precise subcentimeter control to your site, establishes new localized control, and collects topographic data.

	The Trimble R3 GPS System offers:
•	A unique form factor that works as hard as you do.
•	Familiar, easy-to-use software in the field and office.
•	A total surveying solution for L1 GPS.
•	A survey-grade L1 GPS receiver integrated with the popular Trimble Recon™ controller
•	Trimble® Digital Fieldbook™ field software
•	Trimble A3 L1 GPS receiver
•	Trimble Business Center

GPS Serving the World

The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis -- freely available to all. For anyone with a GPS receiver, the system will provide location and time. GPS provides accurate location and time information for an unlimited number of people in all weather, day and night, anywhere in the world.

The GPS is made up of three parts: satellites orbiting the Earth; control and monitoring stations on Earth; and the GPS receivers owned by users. GPS satellites broadcast signals from space that are picked up and identified by GPS receivers. Each GPS receiver then provides three-dimensional location (latitude, longitude, and altitude) plus the time.

Individuals may purchase GPS handsets that are readily available through commercial retailers. Equipped with these GPS receivers, users can accurately locate where they are and easily navigate to where they want to go, whether walking, driving, flying, or boating. GPS has become a mainstay of transportation systems worldwide, providing navigation for aviation, ground, and maritime operations. Disaster relief and emergency services depend upon GPS for location and timing capabilities in their life-saving missions. Everyday activities such as banking, mobile phone operations, and even the control of power grids, are facilitated by the accurate timing provided by GPS. Farmers, surveyors, geologists and countless others perform their work more efficiently, safely, economically, and accurately using the free and open GPS signals.

For additional information about GPS, please explore the rest of this website, as well as the external sites referenced on this page.

GPS Serving the World

The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis -- freely available to all. For anyone with a GPS receiver, the system will provide location and time. GPS provides accurate location and time information for an unlimited number of people in all weather, day and night, anywhere in the world.

The GPS is made up of three parts: satellites orbiting the Earth; control and monitoring stations on Earth; and the GPS receivers owned by users. GPS satellites broadcast signals from space that are picked up and identified by GPS receivers. Each GPS receiver then provides three-dimensional location (latitude, longitude, and altitude) plus the time.

Individuals may purchase GPS handsets that are readily available through commercial retailers. Equipped with these GPS receivers, users can accurately locate where they are and easily navigate to where they want to go, whether walking, driving, flying, or boating. GPS has become a mainstay of transportation systems worldwide, providing navigation for aviation, ground, and maritime operations. Disaster relief and emergency services depend upon GPS for location and timing capabilities in their life-saving missions. Everyday activities such as banking, mobile phone operations, and even the control of power grids, are facilitated by the accurate timing provided by GPS. Farmers, surveyors, geologists and countless others perform their work more efficiently, safely, economically, and accurately using the free and open GPS signals.

For additional information about GPS, please explore the rest of this website, as well as the external sites referenced on this page.

Global Positioning System

"GPS" redirects here. For other uses, see GPS (disambiguation).

For a generally accessible and less technical introduction to the topic, see Introduction to the Global Positioning System.

The Global Positioning System (GPS) is a U.S. space-based global navigation satellite system. It provides reliable positioning, navigation, and timing services to worldwide users on a continuous basis in all weather, day and night, anywhere on or near the Earth.

GPS is made up of three segments: Space, Control and User. The Space Segment comprises 24 to 32 satellites in Medium Earth Orbit and also includes the boosters required to launch them into orbit. The Control Segment is comprised of a Master Control Station, an Alternate Master Control Station, and a host of dedicated and shared Ground Antennas and Monitor Stations. The User Segment is comprised of hundreds of thousands of U.S. and allied military users of the secure GPS Precise Positioning Service, and tens of millions of civil, commecial and scientific users of the Standard Positioning Service (see GPS navigation devices). GPS satellites broadcast signals from space that GPS receivers use to provide three-dimensional location (latitude, longitude, and altitude) plus precise time.

GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, tracking and surveillance, and hobbies such as geocaching and waymarking. Also, the precise time reference is used in many applications including the scientific study of earthquakes and as a time synchronization source for cellular network protocols.

GPS has become a mainstay of transportation systems worldwide, providing navigation for aviation, ground, and maritime operations. Disaster relief and emergency services depend upon GPS for location and timing capabilities in their life-saving missions. The accurate timing that GPS provides facilitates everyday activities such as banking, mobile phone operations, and even the control of power grids. Farmers, surveyors, geologists and countless others perform their work more efficiently, safely, economically, and accurately using the free and open GPS signals.

Global Positioning System

The Global Positioning System (GPS) is a technical marvel made possible by a group of satellites in earth orbit that transmit precise signals, allowing GPS receivers to calculate and display accurate location, speed, and time information to the user.

By capturing the signals from three or more satellites (among a constellation of 31 satellites available), GPS receivers are able to use the mathematical principle of trilateration to pinpoint your location.

With the addition of computing power, and data stored in memory such as road maps, points of interest, topographic information, and much more, GPS receivers are able to convert location, speed, and time information into a useful display format.

GPS was originally created by the United States Department of Defense (DOD) as a military application. The system has been active since the early 1980s, but began to become useful to civilians in the late 1990s. Consumer GPS has since become a multi-billion dollar industry with a wide array of products, services, and Internet-based utilities.

GPS works accurately in all weather conditions, day or night, around the clock, and around the globe. There is no subscription fee for use of GPS signals. GPS signals may be blocked by dense forest, canyon walls, or skyscrapers, and they don’t penetrate indoor spaces well, so some locations may not permit accurate GPS navigation.

GPS receivers are generally accurate within 15 meters, and newer models that use Wide Area Augmentation System (WAAS) signals are accurate within three meters.

While the U.S. owned and operated GPS is currently the only active system, five other satellite-based global navigation systems are being developed by individual nations and by multi-nation consortiums