Which VORTAC is represented by the code EMG?

The VORTAC represented by the code EMG is Elm Grove. VORTACs are navigation aids that combine VOR (VHF Omnidirectional Range) and TACAN (Tactical Air Navigation) systems. Each VORTAC has a unique identifier, typically a three-letter code, which is used by pilots and air traffic controllers for navigation purposes.

In this context, the code EMG is specifically associated with Elm Grove. Air navigational aids like VORTACs are geographically distributed and the codes are not randomly assigned; they derive from the name of the location connecting to them. Hence, Elm Grove directly corresponds to the identifier EMG, making it the correct choice for the question.

Other options like Graham, Eaton, and Fayette Cty do not have the code EMG associated with them, providing confirmation that Elm Grove is indeed the correct identification for this VORTAC.