What is the purpose of the squelch control on a transceiver?

The squelch control on a transceiver serves the specific function of muting the receiver output noise when no signal is being received. This is particularly important in radio communications, as it helps to eliminate unwanted background noise that can be distracting or make it difficult to hear actual communications.

When the squelch is engaged, it allows the receiver to remain silent until a signal reaches a certain strength, effectively filtering out weak signals and preventing listening fatigue from static or interference. Adjusting the squelch control enables the operator to set the threshold at which the receiver will activate, thereby ensuring that only clear and relevant audio signals are heard. This enhances the overall listening experience and helps operators focus on meaningful communications.

The other options pertain to different functions of a transceiver, such as volume control and power level adjustment, which do not relate directly to the purpose of the squelch control.