Which frequency range corresponds to Aeronautical Radionavigation (High)?

The frequency range that corresponds to Aeronautical Radionavigation (High) is specifically designated based on international standards set by the International Telecommunication Union (ITU) and other aviation authorities. The correct frequency range is one that is primarily utilized for high altitude and long-range navigation purposes to assist pilots and air traffic controllers in maintaining safe and efficient flight operations.

In this context, the range of 121.9825 - 123.5875 MHz has been established as part of the aeronautical radionavigation services. This range encompasses frequencies that are specifically allocated for various communication and navigation functions, including approach control and terminal services. The frequencies in this range facilitate the essential high-level communications and navigational support needed for aircraft operating at higher altitudes and over longer distances.

The other frequency ranges mentioned do not fall under the specifications for Aeronautical Radionavigation (High) as defined in relevant aviation regulations. Each alternative range may serve other purposes, such as communications or different types of aviation services, but do not align with the high navigation spectrum required for aeronautical operations.