Drone based measurement system for radiofrequency exposure assessment.

{
  "study_type": "engineering",
  "exposure": {
    "band": "RF",
    "source": "base station",
    "frequency_mhz": 900,
    "sar_wkg": null,
    "duration": null
  },
  "population": "general public",
  "sample_size": null,
  "outcomes": [
    "Development of a drone-based method/procedure for RF-EMF exposure measurement in real environments",
    "Outdoor RF-EMF exposure measurements as a function of height up to 60 m for GSM 900 MHz base station exposure",
    "Three-dimensional RF-EMF exposure pattern measurement capability"
  ],
  "main_findings": "The authors present a drone-based measurement system using lightweight electronics and multiple antennas to assess RF-EMF exposure in real environments with a free-space antenna system. As an application, they report outdoor measurements of GSM 900 MHz base-station exposure versus height up to 60 m and describe a measurement procedure and settings.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "drone",
    "radiofrequency",
    "RF-EMF",
    "exposure assessment",
    "measurement system",
    "free-space antenna",
    "three-dimensional measurements",
    "GSM",
    "900 MHz",
    "base station",
    "outdoor measurements",
    "height profile"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.2,
      "reason": "Uses a drone-based measurement approach; not clearly occupational but relates to exposure measurement methodology."
    }
  ]
}