Which of the following actions can reduce exposure to RF radiation?
Relocate antennas
Correct. Relocating antennas reduces exposure to RF radiation by increasing the distance between the radiating elements and people, thus lowering their exposure levels.
Relocate the transmitter
Incorrect. Relocating the transmitter would not significantly reduce RF exposure because the transmitter is not the primary source of the radiation; the antennas are.
Increase the duty cycle
Incorrect. Increasing the duty cycle would actually increase exposure to RF radiation, not decrease it, because it would mean the transmitter is operating for a larger percentage of time.
All these choices are correct
Incorrect. This choice is incorrect because not all the listed actions would reduce RF exposure; only relocating the antennas would effectively do so.
Explanation
Exposure to RF (radio frequency) radiation is an important consideration for anyone involved in amateur radio, as it can have health implications if not managed properly. RF radiation is a type of non-ionizing radiation emitted by radio transmitters, and prolonged exposure at high levels can cause health issues such as thermal heating of tissues. Therefore, it’s essential to understand how to reduce exposure to this type of radiation. The question asks specifically which action can reduce exposure to RF radiation, and the correct answer is to relocate antennas. By moving the antennas to a location farther from people, you effectively reduce their exposure to the RF energy being emitted. The closer people are to the source of RF radiation, the higher their exposure, so increasing the distance between people and the antennas is a practical and effective way to minimize risk.
T0C08 2022-2026