Which statement about Maximum Range best reflects the listed components?

• A. It is determined solely by the distance to target
• B. It is independent of the transmitted power
• C. It depends on Carrier Frequency, Peak Power, PRF, and Receiver Sensitivity
• D. It depends only on waveform shape

Answer: (C)

Maximum range is about how far the radar can reliably detect a return, which depends on the energy that makes it back and the receiver’s ability to see it above noise. The carrier frequency sets the wavelength, which influences how the signal propagates and how the target responds, plus the effective antenna performance. Peak power determines how much energy is sent in each pulse, boosting the strength of the return. The pulse repetition frequency affects how often you probe the scene and, together with the timing of returns, influences detectability and the unambiguous range. Receiver sensitivity is the threshold the returning signal must exceed to be detected.

Together these factors capture the primary inputs that govern detectable range in a practical radar model: frequency-related propagation and target interaction, energy per pulse, timing/ambiguity considerations from PRF, and the detector’s threshold. The other statements ignore these crucial inputs or oversimplify what sets detectability and range.