Which statement is true regarding S-Band and precipitation performance?

• A. Wider beamwidth
• B. Lower frequency
• C. Less susceptible to rain
• D. Better in precipitation

Answer: (D)

S-band weather radar works with a longer wavelength, which means rain causes less attenuation and signal loss than higher-frequency bands. Because attenuation due to raindrops increases with frequency, S-band can maintain stronger return signals through heavier precipitation, giving more reliable detection and measurement of rainfall. That direct effect—better signal penetration and reliability in rain—is why it’s described as being better in precipitation. While lower frequency or being less affected by rain are related ideas, the most complete takeaway is that S-band delivers improved precipitation performance thanks to reduced rain attenuation, which is why this statement is the best one.