GPS Receiver for Laptop
Fortunately, the days whenThe location and road had to be recognized by the stars or by using the principle "the language will bring to Kiev". Now for these purposes it is convenient to use GPS-navigators. But not everyone can afford a car or pocket navigator. In this case, you can purchase GPS receiver for noutube.At all, GPS stands for Global Positioning System. It allows you to locate andspeed of objects using satellites. The orbiting satellites of the GPS system send signals that are received by the GPS receiver's antenna. The delay time of the signal propagation helps to determine the distance from the object to the satellites, which, in turn, allows to determine the coordinates of the object. To determine the coordinates, signals from at least 4 satellites are needed.
GPS-receivers are sold as separate gadgets or built into smartphones, PDAs, etc. A GPS-receiver for laptop with USB adapter allows you to turn your laptop into a GPS-navigator, displaying the information it receives on the monitor. Modern GPS-receivers can not only notify the coordinates, but also the exact time, directions, altitude and other information necessary for route planning.
USB GPS-receiver for a laptop is a small device that plugs into the USB port. After installing the drivers and the necessaryThe receiver software can be used for its intended purpose. The driver disk is included in the package, as software can usually install most brands of GPS software, although there may be incompatibility with some special software.
A good GPS receiver for a laptop, equipped with SiRFstarIII chipset, can find up to 20 satellites (recall thatto determine the location of the satellites you need at least four) and determine your exact location within one to five meters. All the necessary information will be displayed on the laptop display.
GPS-receiver for laptop does not need additional power supplies: it receives power directly through the portUSB. The internal battery power is used to power the internal memory and the receiver clock. The battery is recharged directly during use, again via the USB interface.
If you do not have a laptop, but a netbook, note that Some receivers do not work correctly with some models of netbooks. Presumably this is becauseUSB ports of netbooks can not provide the level of current prescribed by the standard. Therefore, if you want to use a USB GPS receiver with a netbook, be sure to test it with the purchase.
When choosing a GPS-receiver, you need to pay attention to such parameters, as the maximum refresh rate (in Hertz), the time of connection with the satellite, and updates of the data received from the satellite, as well as the time of hot, cold and warm start.
Cold Start Is the inclusion after a long period of inactivity, when the receiver downloads orbits parameters of all satellites of the GPS system (almanac). When warm start the receiver does not download the almanac, but ephemeris (individual data on the position of each satellite). Hot start - this is a start after a brief off, when the receiver does not need to download any data, because they did not have time to get old.
It is clear that the time of a hot start will be minimal (about a second), and the cold one - the maximum (up to several minutes). Therefore, pay attention to this parameter when selecting a receiver. Also, the operating conditions of the device (maximum altitude, speed, acceleration, reflex, temperature and fractionation humidity, etc.) are important, as well as the data transfer rate.
GPS-receiver for laptop with USB interface A useful gadget if you do not needGPS-navigator on an ongoing basis. But its dignity turns out to be its drawback: in itself, separately from the computer, it does not work, so if the battery is exhausted in the laptop, you will still have to learn to locate the stars.
