Tampa International Airport's (TIA) radar system will be relocated, at a cost of $10.1m, to a 140ft tower on the north-east side of the airport by mid-2011.
The air traffic controller operation centre is located at the base of the airport's control tower and will depend on ASR-9 radar to control aircraft within 60nm of the airport.
The radar must be relocated to advance the construction of the north terminal building, which could block radar transmission to the north.
The terminal construction has been delayed to 2020 from the expected 2015 due to the decline in air traffic.
The airport authority has agreed to reimburse $2m to the FAA for various construction details in the relocation project.