{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.radar","code":"thing-q47528","url":"https://ver.cy/models/thing/q47528/","name":"radar","alternateNames":["AN/TPQ-48","racon","Airport Surface Detection Equipment","TRML","synthetic aperture radar","radar rangefinder","parking sensor","rain radar","weather radar","continuous-wave radar","P-80","Kustspaningsradar"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A system that uses radio waves to detect the range, angle and speed of objects by transmitting pulses or continuous waves and receiving reflections, used in weather forecasting, aviation, shipping, road traffic enforcement and science; military uses are noted only generally.","purpose":"Let an agent explain radar principles and civil applications such as weather radar and air traffic control, with safety and privacy aspects, without military or countermeasure detail.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Uses radio reflections","Measures range and speed","Works in darkness and cloud","Regulated spectrum use"],"structure":{"bundles":[{"id":"principle","name":"Principle","description":"How it works.","layers":[{"id":"ranging","name":"Ranging","description":"Echo timing.","findings":[{"id":"ranging-finding","name":"Ranging","description":"Ranging.","questions":[{"text":"How does radar measure distance from echo timing?","kind":"definition"},{"text":"How is speed measured with Doppler?","kind":"definition"}]}]},{"id":"bands","name":"Bands","description":"Frequencies.","findings":[{"id":"bands-finding","name":"Bands","description":"Frequency bands.","questions":[{"text":"Which frequency band does this radar use and why?","kind":"definition"},{"text":"How does band affect resolution?","kind":"definition"}]}]}]},{"id":"weather","name":"Weather","description":"Weather radar.","layers":[{"id":"maps","name":"Maps","description":"Reading radar.","findings":[{"id":"maps-finding","name":"Maps","description":"Weather radar maps.","questions":[{"text":"How should colours on a weather radar map be read?","kind":"definition"},{"text":"Which official service provides it?","kind":"provenance"}]}]},{"id":"artefacts","name":"Artefacts","description":"False echoes.","findings":[{"id":"artefacts-finding","name":"Artefacts","description":"Radar artefacts.","questions":[{"text":"Could the echo be ground clutter or another artefact?","kind":"boundary"},{"text":"How can it be checked?","kind":"action"}]}]}]},{"id":"transport","name":"Transport","description":"Aviation and shipping.","layers":[{"id":"aviation","name":"Aviation","description":"Air traffic control.","findings":[{"id":"aviation-finding","name":"Aviation","description":"Aviation radar.","questions":[{"text":"How is radar used in air traffic control, in general terms?","kind":"definition"},{"text":"How does it work with transponders?","kind":"definition"}]}]},{"id":"roads","name":"Roads","description":"Speed enforcement.","findings":[{"id":"roads-finding","name":"Roads","description":"Speed enforcement.","questions":[{"text":"What rules govern radar speed enforcement here?","kind":"provenance"},{"text":"How can a fine be challenged, in general terms?","kind":"provenance"}]}]}]},{"id":"limits","name":"Limits","description":"Safety and conduct.","layers":[{"id":"exposure","name":"Exposure","description":"RF safety.","findings":[{"id":"exposure-finding","name":"Exposure","description":"RF exposure.","questions":[{"text":"What safety distances apply near high-power radar?","kind":"provenance"},{"text":"Which exposure limits apply?","kind":"provenance"}]}]},{"id":"military","name":"Military","description":"No countermeasures.","findings":[{"id":"military-finding","name":"Military","description":"Military limits.","questions":[{"text":"Does the request seek military radar or countermeasure detail?","kind":"boundary"},{"text":"How should the agent decline?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Operate a radar it is authorized to use within its licensed frequencies and power.","Report detections, weather returns and faults to the operator."],"mustNot":["Jam, spoof or interfere with radars used for aviation, shipping or weather.","Use radar to track people covertly without lawful basis.","Operate a transmitting radar where people are exposed beyond safe limits.","Help evade lawful traffic or air-traffic radar."],"requiresHuman":["Acting on a radar detection that could lead to force, interception or evacuation."]},"ethics":{"considerations":["Aviation and shipping safety depend on reliable radar.","Radar surveillance can intrude on privacy when used on people."],"affectedParties":["Air and sea travellers","People under surveillance","Workers near transmitters"]},"owners":{"steward":"The licensed operator of the radar; spectrum regulators assign its frequencies.","roles":[],"masterSystems":["Radio spectrum licence registers"]},"relations":[{"target":"Q2041172","type":"parent","note":"registry parent class"},{"target":"Q25447495","type":"parent","note":"registry parent class"},{"target":"measuring instrument","type":"related","note":"category"},{"target":"radio waves","type":"related","note":"medium"},{"target":"weather forecasting and air traffic control","type":"related","note":"applications"},{"target":"lidar","type":"related","note":"related technology"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.radar","Wikidata: Q47528 (https://www.wikidata.org/wiki/Q47528)"]},"properties":{"applicability":"required","items":["Operating frequency:  Hz - Determine the transmitted radio frequency from equipment specifications or calibrated spectrum measurements.","Transmitter output power:  W - Measure radio-frequency output power while distinguishing peak power from time-averaged power.","Antenna beamwidth:  degrees - Determine angular beamwidth from the measured antenna radiation pattern using a stated power threshold.","Equipment mass:  kg - Weigh the assembly while specifying whether antennas, mounts and power supplies are included."]},"recognition":{"applicability":"required","items":["Rotating or phased-array antennas","Radar displays and weather maps","Lidar uses light instead of radio","Rotating antennas, domes and panels on towers, ships, aircraft and vehicles."]},"capabilities":{"applicability":"required","items":["explain how radar works","read weather radar maps","understand aviation and marine radar in general terms","understand speed enforcement rules"]},"hazards":{"applicability":"required","items":["RF exposure near high-power antennas","Providing countermeasure or military detail","Misreading weather radar echoes"]},"interfaces":{"applicability":"required","items":["ITU Radio Regulations","ICAO surveillance standards","RF exposure limits"]},"context":{"applicability":"required","items":["Detection, ranging and imaging.","weather radar","air traffic control radar","marine radar and racons","synthetic aperture radar","automotive and speed radar"]}},"sources":[{"title":"Wikidata item Q47528: radar","url":"https://www.wikidata.org/wiki/Q47528","note":"identity and sense of the item"},{"title":"Wikipedia: Radar","url":"https://en.wikipedia.org/wiki/Radar","note":"general description of the item"}],"openQuestions":["Should radar types be separate entries?","How should weather radar feeds be linked?","How should military content be excluded?"],"resources":{"spec":"/models/things/publications/thing-q47528/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q47528/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T11:20:24Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:31+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}