If a unit's mobile radio displays "SITE TRUNKING", what branch should they contact for assistance?

When a unit's mobile radio displays "SITE TRUNKING," it indicates a communication issue related to the trunked radio system. In this context, contacting the Service Branch is appropriate because this branch is typically responsible for ensuring that communication systems are functioning effectively and addressing any technical issues related to radio operations.

The Service Branch can provide the necessary support to troubleshoot the trunking issue, as they manage services and resources that support operational capabilities, including the communication systems. This role is essential during an incident, where maintaining clear and operational communication is vital for efficiency and safety.

The other branches have distinct responsibilities: the Operations Branch focuses on the tactical aspects of managing the incident, the Logistics Branch handles resource management and supply needs, while the Planning Branch is concerned with developing strategies and situational assessments. Therefore, for a technical communication issue like "SITE TRUNKING," the Service Branch is the most appropriate point of contact.