Which VORTAC is associated with the diamond mileage V245 w JAN APCH?

Which VORTAC is associated with the diamond mileage V245 w JAN APCH?

• A. SQS VORTAC
• B. MHZ VORTAC
• C. PHX VORTAC
• D. LAX VORTAC

Answer: (B)

Diamond mileage along a VOR airway is defined by DME from a specific VORTAC, creating distance-based fixes on that route. For the V245 segment associated with the JAN approach, the VORTAC that provides the reference distance is the MHZ VORTAC, because it lies on that airway segment and supplies the DME readout used to define the mileage point. The other VORTACs listed do not sit on that particular V245 segment in the JAN area, so they don’t supply the diamond mileage reference for this approach.

Diamond mileage along a VOR airway is defined by DME from a specific VORTAC, creating distance-based fixes on that route. For the V245 segment associated with the JAN approach, the VORTAC that provides the reference distance is the MHZ VORTAC, because it lies on that airway segment and supplies the DME readout used to define the mileage point. The other VORTACs listed do not sit on that particular V245 segment in the JAN area, so they don’t supply the diamond mileage reference for this approach.