{
  "@context": {
    "@version": 1.1,
    "crf": "https://cloudrf.com/ns/",
    "schema": "https://schema.org/",
    "geo": "http://www.w3.org/2003/01/geo/wgs84_pos#",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "dcterms": "http://purl.org/dc/terms/",

    "Site": {
      "@id": "crf:Site",
      "@context": {
        "id": "schema:identifier",
        "name": "schema:name",
        "lat": "geo:lat",
        "lon": "geo:long",
        "alt": "schema:elevation",
        "frequency": "crf:frequency",
        "txw": "crf:transmitterPowerWatts",
        "antenna": "crf:antenna"
      }
    },

    "Calculation": {
      "@id": "crf:Calculation",
      "@context": {
        "id": "schema:identifier",
        "type": "crf:calculationType",
        "site": "crf:Site",
        "createdAt": {
          "@id": "dcterms:created",
          "@type": "xsd:dateTime"
        },
        "resolution": "crf:resolution",
        "model": "crf:propagationModel"
      }
    },

    "Antenna": {
      "@id": "crf:Antenna",
      "@context": {
        "id": "schema:identifier",
        "name": "schema:name",
        "gain": "crf:gainDbi",
        "polarization": "crf:polarization",
        "azimuth": "crf:azimuth",
        "tilt": "crf:tilt"
      }
    },

    "Receiver": {
      "@id": "crf:Receiver",
      "@context": {
        "lat": "geo:lat",
        "lon": "geo:long",
        "alt": "schema:elevation",
        "rxg": "crf:receiverGainDbi",
        "rxs": "crf:receiverSensitivityDbm"
      }
    },

    "CoverageResult": {
      "@id": "crf:CoverageResult",
      "@context": {
        "id": "schema:identifier",
        "calculationId": "crf:calculationId",
        "format": "schema:encodingFormat",
        "url": "schema:url",
        "bounds": "crf:bounds"
      }
    },

    "NoiseMeasurement": {
      "@id": "crf:NoiseMeasurement",
      "@context": {
        "lat": "geo:lat",
        "lon": "geo:long",
        "frequency": "crf:frequency",
        "noiseFloor": "crf:noiseFloorDbm",
        "timestamp": {
          "@id": "dcterms:date",
          "@type": "xsd:dateTime"
        }
      }
    }
  }
}