Topic: Electronics Engineering
What is the greatest allowable PRF for unambiguous reception in a radar having a maximum range of 120 km?
- A. 1250 pps
- B. 2500 pps
- C. 1200 pps
- D. 5000 pps
Answer: A. 1250 pps
Explanation: Maximum range $= \frac{C}{2 \times PRF}$
$PRF = \frac{C}{2R} = \frac{3\times10^{8}}{2\times120\times10^{3}} = 1250~PPS$.