This technical paper describes in detail the need for ensuring that the antenna position closely matches RF design specification at installation, and to have an accurate database of antenna position data for any wireless data network. We will discuss why proper alignment of antennas used in RF mobile networks is important - specifically for newer technologies like 4G LTE, and describe the effect of misalignment on overall network data throughput. Network operators, engineers, and contract installation professionals can use this document as reference to understand how equipment to accurately align antennas is neededto ensure QoS (Quality of Service) and meet KPI (Key Performance Indicator) goals. Network RF design engineers and performance engineers can use this document to improve the overall network data throughput, enhance overall customer satisfaction, reduce subscriber churn, and maximize return on investment in costly RF spectrum.