What radio button or keyboard command do you use to squawk back to air traffic control? In the Flyhawk, I have the transponder set to 1200 as required but nothing seems to happen when I push the "IDENT" button.Any help will be appreciated because that Controller just goes on and on ....Peter

Persistent soul, isn't he?You have to control-click on the function knob on the transponder unit until it's in the ON position, then hit the Ident button.

Thanks Allan - I knew you'd know.