Excellent for self-study. Last updated (WRC 007) and the devices can be simulated 503/500 and 505. On the PC könenn 2 ship stations and 1 coast station are simulated, so that you see what further as "sent" is. Did not want to check the DSC COntroller playing operate, without having first sat only once in reality to a radio. Furthermore, there is a good theory part and a few very practical exercises.
