Generally, GPS stands for Global Positioning System .It allows you to determine the location and speed of objects with the help of satellites.Orbiting GPS satellites send signals that are received by the antenna GPS-receiver.Signal propagation delay time helps to know the distance between the object and the satellites, which in turn allows to determine the coordinates of the object.To determine the coordinates need signals from at least 4 satellites.
GPS-receivers are sold as individual gadgets or embedded in smart phones, PDAs and so on. N. A GPS-receiver for laptop with USB adapter allows you to turn your leptop in GPS-navigator , bringing it receives information on the monitor.Modern GPS-receivers c
USB GPS-receiver for laptop is a small device that connects to the port USB .After installing the drivers and necessary software receiver can be used for its intended purpose.Driver CD supplied as a software usually can be installed most brands of GPS software, although there may be an incompatibility with some special software.
good GPS-receiver for noubtuka equipped chipset SiRFstarIII , can be up to 20 satellites (recall that for determining the location of the satellites you need a minimum of four) and determine your exact location within the range of one to five meters.All necessary information is displayed on the screen of the notebook.
GPS-receiver for laptop does not need additional power supply : the power it receives directly via USB.To power the internal memory and the receiver clock using the internal battery power.The battery is charged directly during use, again via the USB interface.
If you do not have a laptop, a netbook, note that some receivers do not work correctly with some models of netbooks .Presumably this is because the USB-ports of netbooks can not provide the prescribed standard of the current level.So if you want to use a USB GPS-receiver with a netbook, be sure to test it with the purchase.
When you select the GPS-receiver should pay attention to such parameters , the maximum refresh rate (in Hz), while the connection with the satellite, and updates derived from satellite data, as well as the hot, cold and warm start.
Cold start - this switch after a long inactivity when the receiver downloads the parameters of the orbits of all the satellites of GPS (almanac).At the start of the warm receiver downloads almanac not, and ephemeris (individual data on the position of each satellite). Hot start - it start after a brief shutdown when the receiver does not need to download any data because they do not have time to become obsolete.
clear that the hot start is minimal (about a second), and the cold - a maximum (up to several minutes). So pay attention to this parameter when choosing a receiver .Are also important conditions of the device (the maximum height, speed, acceleration, jerk, temperature and humidity and so fractionation. P.) As well as data rate.
GPS-receiver to a laptop with a USB interface - useful gadget if you do not need a GPS-navigator on a permanent basis.But it turns out the dignity and disadvantage: in itself, separate from the computer, it does not work, so if the laptop battery is discharged, you will have all the same study to determine the location of the stars.