The squelch control should be turned counterclockwise until just beyond the point where the ______________________ disappears.

The correct answer is that the squelch control should be turned counterclockwise until just beyond the point where the static disappears. Squelch is a feature on radios that mutes the audio output of the device until a strong enough signal is received. By adjusting the squelch control in this manner, you eliminate unwanted background noise, such as static, that can interfere with hearing clear communications.

Static is often caused by low-level noise or interference that can occur when there are no signals being transmitted. Setting the squelch correctly ensures that only significant signals are audible, allowing for clearer communication, especially in a maritime environment where conditions can be noisy. This helps boat crew members focus on important transmissions without distraction from ambient noise.