Which frequency range is characterized by traveling in a line of sight without bending or bouncing?

The frequency range characterized by traveling in a line of sight without bending or bouncing is very high frequency (VHF). VHF signals typically operate between 30 MHz and 300 MHz and are commonly used for FM radio, television broadcasts, and various types of two-way communication, including aviation.

These signals tend to travel in straight lines and are generally limited to the horizon, which means they require a direct line of sight between the transmitting and receiving antennas. This makes VHF particularly effective for communications over shorter distances, as obstructions like mountains or buildings can block the signal.

In contrast, other frequency ranges such as low frequency (LF) and high frequency (HF) can reflect off the ionosphere or other surfaces, allowing them to travel beyond the horizon. Ultra high frequency (UHF), while also line-of-sight like VHF, operates at higher frequencies where atmospheric conditions may affect propagation differently. Therefore, the unique characteristics of VHF frequencies make them the correct answer in this context.