IranMap

The GPS system (Global Positioning System) is owned by the US government and was used by the US department of defence in 1970’s. It was used to identify the accurate and precise location of an object in earth.
The principle of working is very simple as it sends and receives radio signals from satellites. When the satellite sends a signal, the GPS receiver picks up these signals and gives the accurate location of a person. This system gives pin point results and Golf GPS systems are used to calculate the distance between you and another player in the golf course.

There is no rule or law that says this type of systems cannot be used in the game but it is always better to take an advice from a professional before using this in a major event. It gives only the distance and location of a player but it never will alter a player’s game like wind and gradient does.

These are used for finding the location of a player basically. Apart from this, the advanced versions of Golf GPS help to find the bunkers and water hazards in the golf course. The accuracy level of this system is extraordinary and precise. There are numerous factors that affect the performance of this system. Considering all these, the accuracy will be +/- 1yard for a professionally mapped course.

This satellite navigation system will help to improve a player’s game, when a player hits the ball the accurate distance, where it lands can be calculated and thus one can understand how much power he/she should give or reduce. It can be used to understand a player’s statistics and thus improve his/her game. If a golf course data base is not present with you then you can download it from the internet. There are few companies that will provide this data base. This might take some time usually a week or more but then you will get what you want.

Week 48-2010, Weekly Photos Selection, from IranMap-Flickr group

The Jameh Mosque

◄ Back

Next ►

Picture 1 of 8

The Jameh Mosque (Masjid-e-Jameh), Tabriz, East Azerbaijan Province, Iran - by Mehdi.KD

Large size | More photos from Iran

The GPS systems (Global Positioning System) are used for determining the exact location of on object in the earth. This system can be used while travelling in a boat to calculate the exact location, the speed at which you are travelling the direction. This system works on a simple principle of sending and receiving radio signals.

When a satellite sends a signal the GPS receiver picks up these signals and gives us the exact location. The accuracy of this system is pin point and will never go wrong.

There are many satellites that transmit signals simultaneously, but the GPS receivers do not receive these signals. Seeing as that the distance of each satellite from the reception unit will be different. By knowing the speed of light, speed of signal and the transmission rate the receiver can calculate the exact distance to the satellite.

It was earlier used for military purpose and in 1993 it was available for civilian use. These systems were degraded and thus affected its accuracy.

Other factors affecting the accuracy of GPS in boat navigation depends on the speed of the boat, strength of the signals and environmental factors like geomagnetic and gravitational forces.

Signal strength depends on the distance of the satellite to the receiver, at the beginning the GPS system evaluates all the signals and selects the best 5 nearest satellite signals for navigation.

Advanced satellite navigation system called as Chart plotter can be used in boat navigation for determining your boats progress. It uses electronic chart display and an information system to display your accurate location in a chart, map or a specified area.

It will also give the distance to the nearest land or shore. To find the best and easiest route to a specific destination one can connect this GPS system to the boat radar. This will give you the track line or the way point to your destination.