DME ? https://www.boldmethod.com/learn-to-fly/systems/understanding-dme-on-instrument-approaches-and-vfr-use/ Distance measuring equipment (DME) requires both ground-based and in-aircraft equipment. You’ll usually find DME equipment co-located with a VOR or ILS/LOC. NAVAIDs like VORs and ILS systems transmit their navigation signals over VHF. On the other hand, DME is transmitted over UHF. The FAA has matched standard VHF…