Bombardier RJ Navigation

[Evvy]

Can anyone clarify the following with respect to DME Ground Speed -

Display of the DME Ground Speed on the MFD according to the AOM occurs only when FMS is NOT the navigation source and FMS ground speed is not available.

I am working through a program at the moment where the indication appears and disappears almost randomly and am most confused. Can I link the appearance to the display of any other data on the MFD/PFD.

Thanks

[ALV2500]

Are you doing this with software or a sim ?

AL

[Evvy]

Al, it's software.