I've got an oil pressure light," Duncan reported on the command channel as he headed north.

On the command channel, he could hear Sammy working down through damage assessment.

He told her about the change in command channels.

They are having radio problems on most of their command channels.

So he used a different command channel, and continued on with the evacuation.

His communications block informed him that half of the command channels had shut down.

Any problems, she can contact me on the command channel.

Chiefs at a fire operation also would use a separate command channel.

Get me a command channel if you have one.

"Put me on the command channel," he ordered the operator.