Which channel is specifically used for rig to rig contact?

Channel 4 is designated for rig to rig communication within the Minneapolis Fire Department. This specific channel facilitates direct communication among units that are operating in close proximity to one another, which is essential for coordinating activities such as firefighting efforts or rescue operations. Using a dedicated channel helps to minimize the risk of interference from other radio traffic, ensuring that messages are clear and the necessary information is effectively communicated between rigs. This focus on direct communication is crucial for maintaining situational awareness and enhancing interoperability on the scene of incidents.