In modern aircraft, which two functions are commonly combined into a single antenna unit?

The integration of directional and sensing functions into a single antenna unit is a significant advancement in modern aircraft technology. This combination allows for more efficient use of space and resources on the aircraft while enhancing overall performance. A directional antenna is designed to focus its reception or transmission in a specific direction, which is crucial for improving signal quality and minimizing interference. On the other hand, sensors play a key role in gathering information about the surrounding environment, such as altitude or speed.

Incorporating both functions into one unit streamlines aircraft design by reducing the number of antennas required, which in turn lowers weight, increases aerodynamics, and simplifies maintenance. This integration supports more sophisticated avionics systems with capabilities such as enhanced situational awareness and improved navigation performance, which are essential in modern flying environments.

The other options do not accurately reflect the common combination of functions typically integrated into a single antenna unit in aircraft systems.