Hi, i want to built a NAV / COM unit via rotary switches connected to my Aerosoft 747 MCP an displayed via LCD display connected to the parallel port.But i must need what variables i have to set, that i can control these radios. Can anyone help me. I need the commands for tuning NAV/COM / ADF and the values for reading NAV/COM/ADF. The same for Transponder would be great.Hope someone can help me.GreetingsMarkus

Hi,the read variables i found.so i only need the variables for setting those things.greetingsMarkus

I think if you are talking about FSUIPC offsets, many of those are read/write, thus the same offset for both.//Tuomas