In the Primary Surveillance Radar (PSR), if one transmitter amplifier module fails, how many nautical miles can the remaining amplifiers cover with 14kW peak power?

In a Primary Surveillance Radar (PSR) system, the coverage capability is influenced by the power output of the transmitter amplifiers and the design of the radar system. When operating at a peak power of 14kW, the radar can achieve a certain maximum range determined by radar equation factors such as power, antenna gain, and atmospheric conditions.

If one transmitter amplifier module fails in a system with multiple amplifiers, the remaining modules must compensate for this loss of power. The capability to cover distance will be reduced since the overall effective power transmitted is diminished. The specific coverage distance suggested by the correct answer, 60 nautical miles, is a response to the loss of one module in the context of how much this impacts the overall system output.

The remaining power, even though it's less than the original full capacity, can still provide some coverage. The maximum range of 60 nautical miles reflects the system's ability to maintain a working radar signal despite the loss of one module, demonstrating the robustness and design efficiency in PSR systems.

This number is typically derived from empirical data and operational parameters specific to the system in question, hence indicating that while operational integrity is affected by the loss of an amplifier, the remaining setup still possesses a notable range.