Counties, municipalities, and other political subdivisions are authorized to acquire the right or easement for a term of years, or perpetually, to place and maintain radio and other equipment, and suitable marks for the daytime, and to place, operate, and maintain suitable lights for the nighttime marking of buildings, or other structures or obstructions, for the safe operation of aircraft utilizing airports and landing fields acquired or maintained under this article. Such rights or easements may be acquired by grant, purchase, lease, or condemnation in the same manner as is provided in Code Section 6-3-22 for the acquisition of the airport or landing field itself or the expansion thereof.