- 行业: Telecommunications
- Number of terms: 1485
- Number of blossaries: 0
- Company Profile:
Garmin designs, develops, manufactures and markets a diverse family of hand-held, portable and fixed-mount GPS-enabled products and other navigation, communications and information products for the general aviation and consumer markets.
The direction of the north pole from your current position. Magnetic compasses indicate north differently due to the variation between true north and magnetic north. A GPS receiver can display headings referenced to true north or magnetic north.
Industry:Telecommunications
The way in which information is exchanged between the GPS receiver and the user. This takes place through the screen display and buttons on the unit.
Industry:Telecommunications
Most Garmin GPS units are waterproof in accordance with IEC 529 IPX7. IEC 529 is a European system of test specification standards for classifying the degrees of protection provided by the enclosures of electrical equipment. An IPX7 designation means the GPS case can withstand accidental immersion in one meter of water for up to 30 minutes. An IPX8 designation is for continuous underwater use.
Industry:Telecommunications
The distance between points of corresponding phase of two consecutive cycles of a wave.
Industry:Telecommunications
A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water. This technology is used in Garmin fishfinders and sounder products.
Industry:Telecommunications
Represents the direction of the north magnetic pole from the observer's position. The direction a compass points.
Industry:Telecommunications
The average level of the ocean's surface, as measured by the level halfway between mean high and low tide. Used as a standard in determining land elevation or sea depths.
Industry:Telecommunications
The zero meridian, used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.
Industry:Telecommunications
The principal feature of analog signals is that they are continuous. In contrast, digital signals consist of values measured at discrete intervals.
Industry:Telecommunications
A very precise clock that operates using the elements cesium or rubidium. A cesium clock has an error of one second per million years. GPS satellites contain multiple cesium and rubidium clocks.
Industry:Telecommunications
