Schidndler

Pete, thank you for response. I actually use 0x6004 (GPS signal) and 0x6058 (GPS Needle - distance from track). We have tried several offsets (I don't know now which of them we have tried, I have got somewhere on the paper), but offsets, which should return type of GPS signal have been returning wrong values. I will try it. Thanks a lot.

Any idea?

Hello, I have been working on Arduino controlled flight instruments for simulator, working throught C# application with FSUIPC. Code for VOR1 (left side), VOR1 (right side), VOR2 (left side) and VOR2 (right side) has been almost finished but I have one question which I haven't solved. If VOR/GPS switch is in GPS position, VOR1 instruments shows data from GPS. Its sensitivity in standard (enroute) mode should be 5NM at full scale and during approach and terminal operations have a higher sensitivity 0.3 NM at full scale. I have tried some offsets which should determinate if GPS is at enroute mode, approach mode etc. Can anybody help me and tell me how can I get from offsets that GPS is in enroute or approach/terminal ops. mode? Thanks, Bedrich.