The unit mascot is the Thunderbird, a hawk-like bird perched upon a globe shooting thunderbolts out of its eyes.

The 11th Signal Group was originally assigned to Fort Lewis, Washington, as part of STRATCOM, the U.S. Army Strategic Communications Command.

During OEF in 2002, the 11th Signal Brigade had soldiers and civilian personnel supporting CFLCC Forward in Uzbekistan, the U.S. Army's 10th Mountain Division in Bagram, Afghanistan and Task Force Rakkasan (3rd Brigade Combat Team, 101st Airborne Division), in Kandahar, Afghanistan.

The "Thunderbird Brigade," successfully performed its mission of providing Command, Control, Communications, Computers, and Internet (C4I) services to the warfighter but soon deployed back home to Fort Huachuca, Arizona shortly after establishing tactical communications networks for coalition forces.

The 11th Signal Brigade was featured in the History Channel's show Tactical to Practical for its efforts in implementing the use of COTS or "Commercial-off-the-shelf" information technology equipment in a real-world military operation.

Due to its total communications capabilities, the brigade can support the full spectrum of operations ranging from combat to peacekeeping to humanitarian.

Brigade soldiers have also supported operations in Korea, Guantanamo Naval Base, Cuba, and Saudi Arabia.

This process encompasses the personnel, equipment, communications, facilities, and procedures necessary to gather and analyze information; to plan for what is to be done; to issue instructions; and to supervise the execution of operations.