{"ai_pass_count":4,"analysis_step_count":9,"confidence":0.9693836055346765,"created_at":"2026-07-08T00:02:58.186299+00:00","id":148857,"node_number":"683210","processing_time":2.7040534019470215,"recent_steps":["net.store_session","net.llm_structured_analysis","net.rules_detect","net.context_window","crawler.extract_candidates"],"recording_id":151142,"text":"1 megahertz is the first local oscillator. And for the VHF, it shifts up 45.1 for the UHF. It's down 45.1 megahertz from the fundamental receive frequency. So remember, when we mix frequencies, we don't just have the first frequency. We'll call it F1. And the second frequency, we'll call it F2. You actually now have the original two, F1 and F2. But you also get F1 minus F2 and F1 plus F2. So now you've got four frequencies. And those can cause birdies. And like on 442.000, that's what he's experiencing. Commercial radios. And I don't know if I've seen the hand radio that does this or not. Let me read that. Commercial radios have something called beat frequency shift. And that's a."}