Q. Consider the following pairs of Bands of Spectrum and respective uses:

1. L-band (2–4 GHz) - Global Positioning System
2. S-band (1–2 GHz) - Communications Satellites
3. C-band (4–8 GHz) – Communications Satellites
4. X-band (8–12 GHz) - Military

Which of the pairs given above is/are matched correctly?
Answer: Only 3 & 4
Notes: L-band (1–2 GHz) is used in GPS and satellite phones. S-band (2–4 GHz) serves weather and surface ship radar, along with some communications satellites. C-band (4–8 GHz) is mainly for satellite communications and TV networks, being less affected by rain than Ku band. X-band (8–12 GHz) is primarily utilized by the military.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.