Define the term "RF Engineer."

The term "RF Engineer" specifically refers to an engineer who specializes in radio frequency systems. This specialty encompasses a broad range of tasks including the design, development, and optimization of devices and systems that transmit and receive radio waves. RF Engineers play a crucial role in telecommunications, broadcast, radar, and various other fields that rely on radio frequency communication.

They work on technologies that involve RF signals, such as antennas, transmitters, receivers, and other components essential for effective wireless communication. Their expertise enables them to address challenges related to signal propagation, interference, and system design, ensuring that communication systems operate efficiently and effectively.

The other choices do not accurately define the RF Engineer's role. While designing cellular networks relates to the work an RF Engineer might do, the term ‘cellular networks’ is too narrow and does not encompass the full range of RF systems they work with. Software development is outside the primary focus of RF Engineers, as it pertains more to programming and application development. Lastly, responsibility for safety inspections typically relates more to safety engineers or compliance officers rather than to RF specialists.