GPS, better known as the global positioning system is a system that allows you to locate perfectly, on any day and at a specific time, a given mobile satellite system dedicated to the device itself.
WHAT IS A SATELLITE POSITIONING SYSTEM?
The GPS can locate perfectly anywhere in the Terra, noting the exact latitude and longitude coordinates and reported the exact day and time. The GPS satellite system, moreover, is able to function properly in all weather conditions, including the most adverse conditions. The GPS system is made possible by some radio signals that are transmitted by individual satellites located in orbit; the satellites transmit signals to the receiver, which in turn processes them.
All the GPS system is organized and supervised by the American Government even if anyone owns one device can have independent access. Quality six signals depends on a number of factors:
- location of satellites in orbit
- effects of relativity
THE HISTORY OF GPS
The GPS tracking system came into force to replace a system used previously and appointed transit. The first development of GPS Locator there was in 1973. The objective of course was to improve the localization systems that had been developed previously, especially in the years 60. The GPS system was funded by the Department of Defense of the United States Government and — at first — was equipped with only 24 satellites. However, the GPS was started only in 1994.
The first name of GPS, in fact, was SPS. The purpose of this was exclusively civilian satellite, but soon the U.S. Government favoured also by the army and military teams. At first, this first form of GPS was very weak and the signals transmitted from the satellites were often laden with errors and inaccuracies. The inaccuracies were unintentional, however, since the Government of the United States had introduced an additional system aimed to introduce errors in signal processing. The system then initially maintaining accurate temperatures only 150 metres within 100, maximum. The greater distances, in fact, found a significantly degraded satellite system. This degradation was officially abolished by the US Government only in 2000, when President Bill Clinton issued a special decree law to allow civilian use of signal detection accuracy while maintaining a satellite of between 10 and 20 metres.
According to abbreviationfinder.org, a GPS generally consists of three main systems:
- a spatial segment
- a control segment
- a segment for end users
Two of these segments, namely spatial type and control, are handled directly by the U.S. air force. The spatial type segment is the one that contains the satellites whose number iscilla between 24 and 32. The control segment serves precisely to maintain a vision of control over the entire satellite positioning and there is also a control system of alternate type that contains antennas and stations that serve to track & trace and the transmission of satellite signals. The end user segment is what is identified in GPS devices materials.
This article will offer some tips to transfer your waypoints from GPS to your computer, a basic operation that sometimes can give us more than a problem.
For Save your waypoints of the GPS Marine Chartplotter like these to the PC we have several options and methods, we will try to analyze some of them to facilitate you the task.
Save Waypoints With SD Card To Your Computer:
Currently the vast majority of the GPS with the possibility of mapping, also known as GPS Plotter include SD card. In this way, we will make a data export that interest us to the previously inserted in our GPS PlottermicroSD or SD card slot. Then, insert the card to the computer to extract the data that interest us and thus visualize in our computer data in a compatible software.
There are currently a wide variety of applications and programs that will make us work. Virtually any program navigation is going to serve to visualize our waypoints and routes.
Saying this will explain the method most economical and fast for those who have no possibility to extract the data from your GPS Plotter through a SD/microSD card, but on the other hand, have a compatible data cable NMEA0183. It should be added that GPS market, not to say all, most have option to NMEA0183 communications.
In addition, the new marine electronics equipment include nmea2000 conv… networks with which we can connect other screens, radar, auto pilot instrumentation… Or even Wifi connections to transfer data to our smartphone or tablet.
Connect A GPS Via Nmea0183 To The Computer:
The material required for the connection will be: 1 x RS232 DB-9 connector (9-pin male serial port), 1 x port converter serial RS232 DB-9 female to USB, a welder and some pewter.
First, we must identify our GPS equipment output NMEA 0183 (TX) cables. To learn which cables are the data output, normally identified in the same user’s manual, we must distinguish them physically on the computer, which usually have a cable hose stranded with a lot of small cords in different colors. Among these small wires of different colors, some of them serve to activate relays, inputs data our team GPS… We have to identify which provide us output of NMEA0183 data.
Once we have located the cables that bring us (TX) NMEA0183 output, have them to solder to the pins 2 RS232 DB-9 connector(cable exit our positive GPS TX data +) and pin 5 (cable exit our negative GPS TX – data). In this case the connection would be the cable “B” of the attached image.
Most computers do not have these types of connections, so therefore we will need a Connector DB-9 RS232 to USB converter.With this connection, transfer our waypoints from GPS to the PC it will be simpler.
It may seem complicated, but a connection is relatively simple and the only thing that we can have a problem is with both of our GPS equipment and computer software configuration. If doubts in this connection arise you can leave your comments on this article!
View more articles related to connections of GPS and waypoint in our Marine electronics category.
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