Our Professional Strength
TOTAL STATION : Digital theodolites are great but total stations are much better. The accuracy & versatility of a total station can increase efficiency and accuracy simultaneously. If you need the ability to record X, Y and Z coordinates, record height instrument and height of rod, as well as distance for a true sense of what you are recording, then a total station is what you need. Total stations fulfill the need for applications like land surveying, general construction layout, construction stake-out, mapping, utility mapping, GIS applications, archaeology mapping, law enforcement accident reconstruction and environmental studies. Generally speaking, total stations rest on a sturdy tripod and are used to record XYZ point data such as your North, East and Elevation with the end result of data being a “point file” which is nothing more than a text file that can be transferred into a CAD system to begin mapping while connecting the dots. The point data will have X and Y as well as elevation. When buying a total station, The accuracy is based on a number of things such as the optics but the most important specification is the seconds at which it can measure down to.
DGPS : Differential Global Positioning Systems (DGPS) are enhancements to the Global positioning system (GPS) which provide improved location accuracy, in the range of operations of each system, from the 15-meter nominal GPS accuracy to about 10 cm in case of the best implementations. Each DGPS uses a network of ﬁxed ground-based reference stations to broadcast the difference between the positions indicated by the GPS sattelite systems and known ﬁxed positions. These stations broadcast the difference between the measured satellite pseudoranges and actual (internally computed) pseudoranges, and receiver stations may correct their pseudoranges by the same amount. The digital correction signal is typically broadcast locally over ground-based transmitters of shorter range.
RTK : Real time kinematic (RTK) satellite navigation is a technique used to enhance the precision of position data derived from satellite-based positioning systems such as GPS, GLONASS. It uses measurements of the phase of the signal’s carrier wave, rather than the information content of the signal, and relies on a single reference station or interpolated virtual station to provide real-time corrections, providing up to cm level accuracy. With reference to GPS in particular