Ham Radio General Class Practice Test

What precaution should be taken when installing a ground-mounted antenna?

1. It should not be installed higher than you can reach

2. It should not be installed in a wet area

3. It should limited to 10 feet in height

4. It should be installed so no one can be exposed to RF radiation in excess of maximum permissible limits

The correct answer is: It should be installed so no one can be exposed to RF radiation in excess of maximum permissible limits

The correct choice emphasizes the importance of safety in the installation of ground-mounted antennas, particularly regarding radio frequency (RF) radiation exposure. When installing an antenna, it is crucial to consider the potential RF radiation levels that the antenna may emit during operation. Proper installation means ensuring that the antenna is positioned in a way that minimizes public exposure to RF energy. By adhering to guidelines that prevent anyone, including bystanders, from being exposed to RF radiation above permissible limits, operators can safeguard public health and comply with regulations. This consideration goes beyond typical physical installation concerns like location, height, or accessibility. It directly addresses the health implications associated with radio waves, underscoring the operator's responsibility to maintain a safe environment. In contrast, the other choices focus on practical aspects of antenna installation, such as height and location. While those factors are certainly relevant for accessibility and possible antenna performance, they do not carry the same weight when it comes to safety and regulatory compliance regarding RF exposure. Therefore, ensuring compliance with RF exposure limits is essential and is why this choice stands out as the best precaution to follow.