Final answer:
A VORTAC station is a navigational aid used in aviation that combines VOR and TACAN systems.
Step-by-step explanation:
A VORTAC station is a navigational aid used in aviation.
It combines two systems: VOR (VHF Omnidirectional Range) and TACAN (Tactical Air Navigation).
The hexagon with a dot in the center represents a VORTAC station. It can provide VOR navigation for both military and civilian aircraft, as well as additional military-specific capabilities like TACAN and DME (Distance Measuring Equipment).