what are gpr used for?
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GPR is used in law enforcement for locating clandestine graves and buried evidence. Military uses include detection of mines, unexploded ordnance, and tunnels. Borehole radars utilizing GPR are used to map the structures from a borehole in underground mining applications.
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UTP cables are mostly used for LAN networks. They can be used for voice, low-speed data, high-speed data, audio and paging systems, and building automation and control systems. UTP cable can be used in both the horizontal and backbone cabling subsystems.
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Electromagnetic fields at high frequencies Mobile telephones, television and radio transmitters and radar produce RF fields. These fields are used to transmit information over long distances and form the basis of telecommunications as well as radio and television broadcasting all over the world.
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Fibre-optic sensors embedded in shallow trenches within slopes could help detect and monitor both large landslides and slow slope movements. Usually, electrical sensors have been used for monitoring the risk of landslides, but these sensors can be easily damaged.
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Radar is a detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
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The waves used in the radar are radio waves or microwaves,where the radar is usualy used to detect and track space objects and ballistic missiles,this is a long range radar antena.
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Working Principle of Moisture Sensor The Soil Moisture Sensor uses capacitance to measure dielectric permittivity of the surrounding medium. ... The sensor creates a voltage proportional to the dielectric permittivity, and therefore the water content of the soil.
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GPRS - Overview. General Packet Radio System is also known as GPRS is a third-generation step toward internet access. ... The packet radio principle is employed by GPRS to transport user data packets in a structure way between GSM mobile stations and external packet data networks.
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GPRS is a packet-based* wireless communication service. ... GPRS and EDGE are both 2G technology but EDGE is significantly faster with a download speed of up to 384Kbps. EDGE is sometimes called a 2.5G network as it also has some characteristics of a 3G network but it doesn't satisfy the specification.
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Radar detectors are especially useful if you travel by car a lot. All drivers drive faster at some point, so having a device that can warn you of a police radar is recommended. On the other side, these devices have a positive effect on drivers.
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Radar data can be used to determine the structure of storms and to help with predicting severity of storms. Energy is emitted in various frequencies and wavelengths from large wavelength radio waves to shorter wavelength gamma rays. Radars emit microwave energy, a longer wavelength, highlighted in yellow.
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2G data takes the form of two different standards, GPRS and EDGE. ... As a result of being from the early 00's, 2G data is very slow indeed. GPRS can go up to 114 Kbps (0.1 Mbps) and EDGE can get as high as 237 Kbps (0.2 Mbps). To put this in perspective, 3G can handle up to 42 Mbps and 4G can go even higher than that.
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The General Packet Radio Service (GPRS) is an enhancement to the existing GSM network infrastructure and provides a connectionless packet data service. The same cellular base-stations that support voice calls are used to support GPRS and as a consequence GPRS can be used wherever it is possible to make a voice call.
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GWR devices are typically installed at the top of a tank with a probe (often called a waveguide) extending inside the tank and contacting the product inside. The sensor sends a concentrated radar pulse down the probe and that pulse hits the product and reflects back up the probe to the sensor.
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One type of radar, called Doppler radar, is used at weather stations throughout the world. Doppler radar measures changes in wind speed and direction.
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GPS stands for Global Positioning System. whereas GPRS stands for General Packet Radio Service. GPS is used for the satellite based navigation systems, mapping as well as GIS etc. Whereas GPRS is used for video calling, Email accessing, multimedia messaging etc.
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Earth testing Ground resistance testing covers the testing of earth electrodes and the measurement of soil resistivity. Megger offers top end systems for design and soil surveys as well as tough easy to use testers for field engineers.