NDB Is one of the radio air signal facilities and is a minimum requirement for an airport. NDB helps pilots to find out the position of an airport by transmitting radio wave signals in all directions.
AMSH is specified in a set of standards to provide high functionality messaging for a wide range of messaging applications.
ELSA AMSC AROMES 1003Qi+ is an AFTN application software product which in designed modular architecture,
The appearance of the ATN, gives many benefits to its users, such as, high availability, scaleability, policy based routing, mobile communications, error detection, security.