Which of the following frequency types is associated with ultra-high frequencies?

The answer is associated with ultra-high frequencies, which are designated by the acronym UHF. This frequency range spans from 300 MHz to 3 GHz. UHF is widely used in various communication systems, including television broadcasting, satellite communications, and two-way radios. The band’s ability to support high data rates makes it particularly useful for modern digital communication applications, as well as for line-of-sight communications because its waves can travel shorter distances but can penetrate obstacles like buildings more effectively compared to lower frequency bands.

The other frequency types—very high frequency (VHF), high frequency (HF), and medium frequency (MF)—refer to different ranges that fall outside of the UHF classification. VHF spans from 30 MHz to 300 MHz, HF from 3 MHz to 30 MHz, and MF from 300 kHz to 3 MHz. Each of these has its specific applications and characteristics that differentiate them from UHF. Understanding these distinctions is crucial for anyone working with avionics systems, as different frequency bands are optimized for different types of communication needs.