{"ai_pass_count":4,"analysis_step_count":10,"confidence":0.7604176821187139,"created_at":"2026-07-06T02:29:54.589083+00:00","id":144581,"node_number":"683210","processing_time":1.7274718284606934,"recent_steps":["net.store_session","crawler.extract_candidates","callsign.qrz_verify","net.llm_structured_analysis","net.rules_detect"],"recording_id":146381,"text":"All right, KG5, in the returning area, what is the purpose of a directional coupler in an RF transmission line? Your choices are alpha. The simple forward and reflective power without significantly interrupting the transmission line. Bravo, to make two antennas talk things out before the SWR gets ugly. Charlie, it's the official relationship counselor for a trans-dummy load or delta to politely ask RF which direction it blends to misbehave. I'll let it break and read it again. KG5 MCB returning. What is the purpose of a directional coupler in an RF transmission line? Your choices are alpha."}