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Radio Frequency over Glass (RFoG) provides a significant advantage for broadband cable operators by allowing for a seamless transition from Hybrid Fiber-Coaxial (HFC) networks to Passive Optical Networks (GPON/EPON). This is crucial in an industry where operators are looking to upgrade their infrastructures to support higher bandwidths and improve service delivery. RFoG leverages existing coaxial infrastructure while integrating fiber optics, facilitating a blended approach that minimizes disruption during the transition.

This seamless integration means operators can gradually shift services and customers to a fiber-centric model without the need to replace the entire existing coaxial network immediately. Additionally, it allows them to continue utilizing their legacy systems, which can be cost-effective and less complex compared to completely overhauling the network.

The other choices may not capture the primary advantage effectively. For example, while RFoG does lower costs in certain aspects, affordability isn't the primary focus when considering the transition capabilities. Similarly, RFoG doesn't inherently require no additional hardware or enhance signal strength as standalone benefits; instead, its main value lies in how it facilitates a smoother transition to newer technologies while maintaining service continuity.