Question: What kind of media station did the broadcaster Turaga Janaki Rani work with for two decades, which is a station which uses the technology of radio waves to carry information by systematically modulating properties of electromagnetic energy waves transmitted through space?
Sentence (from "Turaga Janaki Rani"): Popularly known as Radio Akkayya (Telugu: రేడియో అక్కయ్య Radio Sister).
Relevant evidence: No