What action should be taken when there is a need to change communication frequencies?

Changing communication frequencies is a crucial action in ensuring clear and effective communication, especially in emergency or dispatch scenarios. When there is a need to switch to a different channel, it is typically due to reasons such as interference, a need for more privacy, or a shift in operational protocols.

By switching channels, dispatchers and responders can maintain the clarity of their conversations, reduce the risk of overlapping communications, and ensure that all involved parties are on the same page. This action facilitates maintaining situational awareness and enables critical information to be shared without disruption.

The other options may not address the underlying need for clarity in communication. Ending communication would hinder ongoing operations and information sharing, while increasing the volume might not resolve any underlying issues with frequency clarity. Notifying a supervisor may be appropriate in certain contexts, but not as an immediate response to changing channels for effective communication.