GPS technology has become a mainstay resource for many industries worldwide. It has revolutionized the way many industries operate including activities as diverse as land, sea and air transport, farming, geodetic services, surveying, construction, banking and electricity distribution.
The GPS is a utility owned by the USA government focused on providing positioning, navigation and timing services to civilian as well as government, military and business users free of charge. Anyone with a GPS receiver can receive location and time information from the system. The system consists of three components.
The first component ar the satellites in orbit above the earth. The second compoents are earth-based control stations. Finally, the system involves the GPS receivers owned by users themselves. GPS satellites and control stations are operated and managed by the Air Force of the USA.
The GPS started operation with 24 satellites but now has up to 32 in operation. The greater the number of satellites in operation the greater is the accuracy and reliability of the system. Each satellite is strategically positioned in low space about 12,000 miles above the surface of earth. They all move in a fixed, pre-determined orbit. At any instant in time, all areas on earth are capable of receiving signals 24x7x365 transmitted by multiple satellites.
Each GPS satellite moves about the axis of the earth at the same speed as earth itself. When observed from earth, each satellite appears in the exact same location above the earth. At any time, all areas on earth within the targeted 70 degrees of latitude north and south are blanketed by GPS signals transmitted by two or more GPS satellites.
Each satellite transmits radio microwaves one-way down to earth so as to blanket a large portion of its surface. Collectively, the full fleet of satellites ensures blanket coverage from 70 degrees north to south of the equator. Areas from the poles to 70 degrees latitude north and south are not serviced by the GPS system; they rely on a similar system operated by European governments.
At the push of a button, these specially-enabled GPS devices transmit their location coordinates, along with a personalized identification code, to the Search And Rescue Satellite Aided Tracking (SARSAT) satellites. This instantly alerts search and rescue (SAR) forces that the user needs emergency assistance. All of this happens within minutes. This GPS technology has greatly improved the safety of maany outdoor and extreme sports.
The GPS is a utility owned by the USA government focused on providing positioning, navigation and timing services to civilian as well as government, military and business users free of charge. Anyone with a GPS receiver can receive location and time information from the system. The system consists of three components.
The first component ar the satellites in orbit above the earth. The second compoents are earth-based control stations. Finally, the system involves the GPS receivers owned by users themselves. GPS satellites and control stations are operated and managed by the Air Force of the USA.
The GPS started operation with 24 satellites but now has up to 32 in operation. The greater the number of satellites in operation the greater is the accuracy and reliability of the system. Each satellite is strategically positioned in low space about 12,000 miles above the surface of earth. They all move in a fixed, pre-determined orbit. At any instant in time, all areas on earth are capable of receiving signals 24x7x365 transmitted by multiple satellites.
Each GPS satellite moves about the axis of the earth at the same speed as earth itself. When observed from earth, each satellite appears in the exact same location above the earth. At any time, all areas on earth within the targeted 70 degrees of latitude north and south are blanketed by GPS signals transmitted by two or more GPS satellites.
Each satellite transmits radio microwaves one-way down to earth so as to blanket a large portion of its surface. Collectively, the full fleet of satellites ensures blanket coverage from 70 degrees north to south of the equator. Areas from the poles to 70 degrees latitude north and south are not serviced by the GPS system; they rely on a similar system operated by European governments.
At the push of a button, these specially-enabled GPS devices transmit their location coordinates, along with a personalized identification code, to the Search And Rescue Satellite Aided Tracking (SARSAT) satellites. This instantly alerts search and rescue (SAR) forces that the user needs emergency assistance. All of this happens within minutes. This GPS technology has greatly improved the safety of maany outdoor and extreme sports.
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Look at the heart rate monitor watch. It's pretty neat. The Garmin heart rate monitors that we have are worth every cent.