What is one significant advantage of using VHF communications over HF?

VHF communications have a significant advantage over HF primarily due to their resilience to atmospheric noise and electrical equipment interference. VHF operates within a frequency range that is less susceptible to various types of noise that can affect radio communications, particularly during adverse weather conditions or when electromagnetic interference is present. This clarity and reliability make VHF preferable for aviation and many other applications where clear communication is critical.

In contrast to the other choices, VHF does not possess a longer range than HF, as HF can cover greater distances due to its ability to reflect off the ionosphere. VHF frequencies are actually higher than HF frequencies, which makes option C incorrect as well. Finally, while lower power requirements are a characteristic of VHF transmission compared to the power needed for effective HF transmission, this power aspect is secondary to the more pressing benefit of reduced noise and interference. Thus, the ability of VHF to maintain clear communication without being readily impacted by external noise sources is what sets it apart as a significant advantage.