{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-13T04:40:26Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 3,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T10:00:00Z",
      "ingestedAt": "2026-10-06T07:05:53+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:54+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q131214",
    "registryId": "vr.tr.antenna",
    "name": "antenna",
    "version": "0.2.0-wave.3",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q131214/",
  "model": {
    "registry_id": "vr.tr.antenna",
    "name": "antenna",
    "purpose": "Let an agent explain antennas and their types, relay principles, parameters and applications from radio engineering references, describe broadcast, satellite and radar antennas, and distinguish antennas from transmitters, receivers and towers.",
    "definition": "A device that converts electric currents into radio waves and radio waves into currents, used for transmitting and receiving in radio, television, mobile, satellite and radar systems, in forms such as dipoles and monopoles including mast radiators for broadcasting, horn antennas and feed horns, parabolic dish antennas, arrays and specialised patterns such as cosecant squared antennas for radar, and the large low-frequency antennas of LORAN stations; antennas are characterised by gain, radiation pattern, bandwidth and polarisation.",
    "what_it_is_for": "Radiating and receiving radio waves.",
    "affordances": [
      "explain principles and types",
      "relay parameters",
      "describe applications",
      "distinguish from related equipment"
    ],
    "distinguishing_features": [
      "Reciprocity",
      "Gain and pattern",
      "Frequency dependence",
      "Diverse forms"
    ],
    "appearance": "Rods, wires, dishes, horns, panels or masts.",
    "visual_identification": [
      "Device radiating or receiving radio waves",
      "Dipoles, mast radiators, horns and feed horns, parabolic antennas, arrays, cosecant squared antennas, LORAN antennas",
      "A transmitter generates the signal; a tower supports antennas; a cable carries the signal"
    ],
    "physical_properties": [
      {
        "quantity": "half-wave dipole length",
        "typical_range": "about 0.47",
        "unit": "wavelengths",
        "note": ""
      },
      {
        "quantity": "largest single dish",
        "typical_range": "500",
        "unit": "m",
        "note": "FAST in China"
      },
      {
        "quantity": "mast radiator heights",
        "typical_range": "up to about 600",
        "unit": "m",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "wire antennas such as dipoles and monopoles including mast radiators",
      "aperture antennas such as horns and feed horns",
      "reflector antennas such as parabolic dishes",
      "array and phased array antennas",
      "shaped-beam antennas such as cosecant squared radar antennas",
      "low-frequency antennas such as LORAN station antennas",
      "microstrip and mobile device antennas"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "electronic component",
        "why": "in registry terms"
      },
      {
        "relation": "radiates",
        "target": "radio wave",
        "why": "from currents"
      },
      {
        "relation": "is connected to",
        "target": "radio transmitter",
        "why": "and receivers"
      },
      {
        "relation": "is characterised by",
        "target": "antenna gain",
        "why": "and radiation pattern"
      }
    ],
    "identifiers": [
      {
        "scheme": "IEEE",
        "value_or_pattern": "Std 145",
        "note": "definitions of terms for antennas"
      }
    ],
    "standards_and_regulation": [
      "IEEE antenna standards",
      "Spectrum licensing and emission rules",
      "Radiofrequency exposure limits",
      "Aviation obstacle rules for masts"
    ],
    "failure_modes_and_hazards": [
      "Mismatch and detuning",
      "RF exposure near high-power antennas",
      "Confusing antennas with towers or transmitters"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Describe antenna types, gain, polarization and coverage from technical sources.",
        "Monitor and report the status of antennas the agent is authorized to manage."
      ],
      "must_not": [
        "Transmit on frequencies or at power levels the licence does not permit.",
        "Send anyone up a mast or near a transmitting antenna without the operator's exposure controls in place.",
        "Set up an antenna to intercept or jam communications it is not authorized to receive.",
        "Spread unsupported health claims about antennas or dismiss real exposure limits."
      ],
      "requires_human": [
        "Changing the power, frequency or direction of a licensed transmitter.",
        "Permitting work on a live mast or rooftop installation."
      ]
    },
    "ethics": {
      "considerations": [
        "Radio spectrum is shared; interference can disrupt emergency and aviation communications.",
        "Climbing and RF exposure near transmitters can injure workers."
      ],
      "affected_parties": [
        "Workers on masts and rooftops",
        "Other spectrum users",
        "Residents nearby"
      ]
    },
    "owners": {
      "steward": "The licensed operator of the station; the national spectrum regulator issues the licence.",
      "master_systems": [
        "National spectrum licence registers"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q131214: antenna",
      "url": "https://www.wikidata.org/wiki/Q131214",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Antenna (radio)",
      "url": "https://en.wikipedia.org/wiki/Antenna_%28radio%29",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What an antenna is.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "principle",
            "name": "Principle",
            "description": "Principle.",
            "findings": [
              {
                "id": "principle-finding",
                "name": "Principle",
                "description": "Principle.",
                "questions": [
                  {
                    "text": "How does an antenna radiate and receive radio waves, and what does reciprocity mean?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about an antenna, a transmitter, a tower or a cable?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "types",
            "name": "Types",
            "description": "Types.",
            "findings": [
              {
                "id": "types-finding",
                "name": "Types",
                "description": "Types.",
                "questions": [
                  {
                    "text": "How do dipoles, mast radiators, horns, parabolic dishes, arrays and cosecant squared antennas differ?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific type?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "design",
        "name": "Design",
        "description": "Parameters and design.",
        "rationale": "Practice.",
        "layers": [
          {
            "id": "parameters",
            "name": "Parameters",
            "description": "Parameters.",
            "findings": [
              {
                "id": "parameters-finding",
                "name": "Parameters",
                "description": "Parameters.",
                "questions": [
                  {
                    "text": "What are gain, radiation pattern, bandwidth, impedance and polarisation, and how are they measured?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "selection",
            "name": "Selection",
            "description": "Selection and matching.",
            "findings": [
              {
                "id": "selection-finding",
                "name": "Selection",
                "description": "Selection.",
                "questions": [
                  {
                    "text": "How are antennas selected and matched for a given frequency and application?",
                    "kind": "action"
                  },
                  {
                    "text": "Which entry fits impedance matching?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "apply",
        "name": "Apply",
        "description": "Applications.",
        "rationale": "Application.",
        "layers": [
          {
            "id": "broadcast",
            "name": "Broadcast",
            "description": "Broadcast and navigation.",
            "findings": [
              {
                "id": "broadcast-finding",
                "name": "Broadcast",
                "description": "Broadcast.",
                "questions": [
                  {
                    "text": "How are mast radiators and LORAN antennas used in broadcasting and navigation?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "radar",
            "name": "Radar",
            "description": "Radar and satellite.",
            "findings": [
              {
                "id": "radar-finding",
                "name": "Radar",
                "description": "Radar.",
                "questions": [
                  {
                    "text": "How do feed horns, dishes and cosecant squared antennas serve satellite and radar systems?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the specific application?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "History and regulation.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "history",
            "name": "History",
            "description": "History.",
            "findings": [
              {
                "id": "history-finding",
                "name": "History",
                "description": "History.",
                "questions": [
                  {
                    "text": "How did antennas develop from Hertz and Marconi to phased arrays?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the history of radio?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "regulation",
            "name": "Regulation",
            "description": "Regulation and safety.",
            "findings": [
              {
                "id": "regulation-finding",
                "name": "Regulation",
                "description": "Regulation.",
                "questions": [
                  {
                    "text": "What licensing, exposure and structural rules apply to antennas?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits radiofrequency exposure?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should parabolic antenna and dipole antenna be separate primary entries?",
    "How should engineering references be linked?",
    "The registry entry has merged aliases naming types and a station kind; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
