How does temperature affect the performance of aircraft navigation systems like VOR?

Temperature plays a significant role in the performance of aircraft navigation systems such as VHF Omnidirectional Range (VOR) due to its impact on signal propagation and electronic components. As the temperature changes, it can lead to variations in the performance of the equipment, which may introduce errors in the navigation signals. For instance, increased temperatures can cause the electronic circuitry to operate differently, potentially affecting the accuracy of the received signals.

Furthermore, at extreme temperatures, the physical properties of materials used in both the navigation system and the environment through which signals travel can alter. This can lead to issues such as signal distortion or loss, which diminishes the accuracy of the navigation data received by the aircraft.

In contrast, other options are less valid because temperature does indeed influence the performance of VOR systems. Suggesting that it has no effect or that it enhances performance does not align with the known effects of temperature on electronic devices and wave propagation. Additionally, while recalibration may sometimes be necessary, it is not a direct consequence of temperature changes alone and does not comprehensively describe the overall impact of temperature on navigation accuracy.