For a radio station, what is typically affected by man-made noise?

Man-made noise primarily impacts reception clarity in radio broadcasting. This type of noise, which can originate from sources such as electronic devices, power lines, or other machinery, interferes with the signal being transmitted. It introduces unwanted sounds or static that can degrade the quality of the reception at the listener's end. When the clarity of the reception is affected, it becomes difficult for listeners to distinguish the intended audio content from the noise.

In the context of the other options, while transmission power, frequency range, and signal strength are important aspects of radio communication, they are not directly impaired by man-made noise. Transmission power refers to the amount of energy used to send the signal out, frequency range pertains to the spectrum of frequencies the station can use, and signal strength indicates how strong the transmitted signal is at a certain distance. These factors are fundamental to how a signal is broadcast, rather than how it is received and interpreted, which is where man-made noise has the most significant effect.