What frequency band does Distance Measuring Equipment (DME) operate in?

Distance Measuring Equipment (DME) operates in the UHF band, specifically between 960 MHz and 1,215 MHz. This frequency range allows for precise distance measurements between an aircraft and a ground-based station, using time delay of signals sent and received.

In the context of aviation technology, the DME works in conjunction with other navigation aids, such as VOR (Very High Frequency Omnidirectional Range) systems. The UHF band is suitable for DME because it supports the needed signal propagation characteristics, allowing for accurate and reliable distance calculations over significant ranges.