Abstract: The present invention relates to a method and system for displaying multiple aircrafts positions in a display system for real-time monitoring flights. The method will enables the trainer in the ground station, to select and to switch between aircrafts to monitor the flight at real time as if he were next to the selected trainee and to see the instruments panel and also the three dimensional positions of the respective aircraft as seen from the cockpit and to conduct a conversation with the pilot. The method enable to give to the trainee the needed instructions to overcome problem he might face during flight and to displays a warning mark when a distance between two aircraft is shorter than a threshold value and. The method enables data transmission based on a cellular internet communication.

Abstract: The present invention propose a combined communication system which integrate wired and wireless communication, based on several distributed antenna system (access points) which give rise to a significant reduced radiation. Efficient access point roaming techniques is handing over a blue tooth wireless communications session from a first access point to a second access point of distributed antenna system. The distributed antenna system is providing a communication with plurality terminal devices. The link with the more than one access points established via the terminal devices for continues the communication session.