Plain English Meaning

The spot on a route where you stop using the navigation station behind you and start using the next one ahead.

Full Definition

A point along an airway or route segment between two VOR navigation aids where a pilot flying the route should switch tuning and navigation reference from the station behind the aircraft to the station ahead. It is depicted on en route charts when it does not occur at the midpoint between two stations, usually because terrain or signal coverage makes one station unreliable beyond a specific distance.

Context Anchor

Seen on en route charts and legends, especially on route segments between stations.