When the MCM ship tows the TB-36, what frequency output does it desire?

When the MCM ship tows the TB-36, it seeks a low-frequency output for several important operational reasons. Low-frequency outputs allow for better signal propagation in water, which is crucial for effective mine countermeasure operations. These lower frequencies can penetrate deeper into the seabed, enabling the ship to detect objects like underwater mines more effectively.

Additionally, operating at low frequencies can reduce the impact of environmental noise, making it easier to discern signals from potential threats. This frequency range balances the need for sensitivity in detection while managing the interference from other acoustic sources in the marine environment. Utilizing low frequencies also optimizes the operational range of the sonar systems, leading to enhanced overall mission effectiveness.

In contrast, high, medium, and ultra-low frequencies do not provide the same advantages in terms of depth penetration and environmental noise reduction needed in these specific scenarios, which is why they are less desirable for the task at hand.