Tvrao - I kinda disagree with your post :
The TILT selector switch enables the variation of the antenna elevation angle in 1/4 deg. steps on a non-linear scale graduated in degrees, within a range of +15 deg. (UP) to -15 deg. (DOWN) in relation to a horizontal plane defined by the stabilization system.
This antenna elevation angle is displayed in cyan in the R lower corner of the ND and progresses in steps of 0.25 deg.
If the antenna position is different from the TILT selector switch position, a red ANT failure warning message replaces the TILT indication in the R lower corner of the ND.