Ham Radio Extra Class Practice Test

The terms L band and S band are used to define specific frequency ranges in the electromagnetic spectrum, particularly in the context of satellite communications. L band typically refers to frequencies between 1 GHz and 2 GHz, which corresponds to wavelengths of around 30 to 15 centimeters, and includes the 23 centimeter band. On the other hand, S band designates frequencies ranging from 2 GHz to 4 GHz, aligning with the 13 centimeter band.

Understanding these bands is crucial in satellite communications because they impact signal characteristics like attenuation, range, and penetration through the atmosphere. The choice of frequency band has implications for system design, operational capabilities, and the types of services that can be effectively provided. In contrast, the other answer choices do not accurately describe these specific frequency bands commonly referenced in satellite technology.