Comparison of field performance of GPS accuracy between autopilot tractor and handheld GPS in oil palm / Hafizuddin Afiq and Hudzairi Mohd Ghazali

New Holland TD5.75 tractor that is the new modem farming technology tractor. This new modern smart tractor can be operate with autopilot mode. This intelligence innovation also has an ability of sensoring the nitrogen contain in plant and also have an ability in EC sensor of soil. This smartractor also have a variety of usage by referring to the connected implement such as disc plough, rotor slasher, sprayer, spreader and auger. The purpose of study been conducted is to measure the error of GPS accuracy between the autopilot and handheld GPS. From this study we are able to define the difference of the measurement accuracy between tractor and handheld GPS. In this experiment the data collected by field observation and also collecting the coordinated of the tree point by point manually. The data have been analyzed with a help of Microsoft excel by comparing the average of the data. Besides, the data also been calculated by RMSE formula where the formula will compare the independent and dependent variable. After that, the data been presented by usingG1S software. For the result, this study is able to detect the difference in comparing the data from the tractor and handheld GPS. thus, from the result we can confirm that the tractor GPS can be uses as a reference because it is 99% guarantee from this research.