A Study on increasing the laser unit efficiency under egyptian condition

Field experiments were carried out in two different soil types at El-Bostan farm, Behira Governorate (as a sandy soil) and Kom Ombo farm, Aswan Governorate (as a clayey soil) to evaluate the performance of local LASER transmitter and compare its performance with three other imported transmitters.The objectives of the present work may be summarized as follows:1- Constructing and developing local LASER transmitter to be used LASER for land levelling in small Egyptian farms.2- Comparing the performance of the developed local transmitter with three other imported transmitters taking into consideration both accuracy and efficiency indicators.Comparing the developed transmitter with the other imported transmitters from the cost point of view