The GI 102A and GI 106A are panel-mounted course Deviation Indicators (CDI's) with rectilinear meter movements and contain integral GPS, NAV, and VLOC mode annunciators. The GI 102A has a VOR/LOC/GPS needle, TO/FROM indicator, and NAV warning flag. The GI 106A has these same features, plus a GS needle and flag. Both units contain an integral resolver for OBS feedback. The GI 102A and GI 106A units also feature anti-reflective lenses and are backlit.