Description of the work by GPS:
1- Make a plane to make sure of the satellite distributing correctly.
2- There are three ways of observing point in GPS:
c- Stop and go
3- Select (kinematics) this due to it takes shorter time and suitable accurate.
4- Reference receiver instrument to be fixed on control point ( known coordinate point which is taken from Riyadh municipality ).
5- Setting up rover instrument on the point that has been selected from the image and to be measured by GPS.
6- Press the button (ON) to activate machine.
7- Select (Job) menu.
8- Press the button F1 (CONT).
9- Press the button F2 (NEW) “to enter project name”.
10- Insert project’s name.
11- Press the button F1 (CONT).
12- Go to the menu.
13- Select (survey) from the menu.
14- Press the button F1 (CONT).
15- Select kinematics from list.
16- Insert the observing method.
17- Check the project’s name.
18- Press the button F1 (CONT).
19- Insert the point’s name.
20- Insert the point’s height “between point and instrument”.
21- Press the button F1 (OCCUPY).
22- After finishing from observing, Press the button F1 (STOP).
23 - Press the button F1 (STORE) to store the data.