BioMedical Admissions Test (BMAT) 2025 – 400 Free Practice Questions to Pass the Exam

In radio communication, short-wave radio signals have the characteristic of being more localized compared to other types of waves. This is primarily due to their shorter wavelength and higher frequency, which allows them to travel in a more direct manner. Short-wave radio can reflect off the ionosphere, allowing for both regional and local communication, making them less capable of covering long distances compared to long-wave radio.

The localization of short-wave signals means they are less likely to interfere with other communications over vast areas, making them ideal for applications needing specific targeting or transmission over limited ranges. In contrast, long-wave radio waves can travel considerable distances and wrap around the Earth, while microwaves have a more focused beam but typically operate at higher frequencies used in point-to-point communication rather than widespread local area use. Infrared waves are generally not used in radio communication as they are more suitable for high-frequency applications over very short distances.