When connected to an AV-HSI and IFR-approved navigator, the AV-30-E can be used as a primary display of navigation guidance. This capability is not yet approved on the AV-30-C. The AV-30-C is approved for installation as a primary Attitude Indicator or primary Directional Indicator. The AV-30 is capable of receiving serial GPS streams. When connected to an external GPS navigator or hand-held, AV-30 operates as a repeater display. The data provided includes current waypoint ID, distance to destination, ground speed, cross-track error, desired track, and bearing to waypoint.