The radio navigation apparatus disclosed herein facilitates perception by the pilot of an aircraft of passage through the intersection of preselected bearings relative to selected radio beacons. Deviation from one of the bearings is indicated on a first indicator having a pointer which swings laterally to indicate course deviation in conventional manner while departure from the second bearing is indicated on an indicator having a pointer which swings vertically and which crosses the pointer of the first indicator. The second indicator is energized through a reversing switch which permits it to indicate progress relative to the intersection in the same manner for lateral locations of the respective radio beacon on either side of a course following the first bearing. Means are also provided for providing an audio signal, preferably the modulation of one of the received r.f. signals, as the intersection is passed.
