{
  "id": "emitters:dect-cordless-phone",
  "collection": "emitters",
  "slug": "dect-cordless-phone",
  "name": "DECT cordless phone base station",
  "summary": "Older DECT bases transmit a pulsed beacon 100 times per second whether or not a call is in progress; at 250 mW peak that is about 20,000 µW/m² at 1 m.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "aliases": [
      "cordless phone",
      "DECT base"
    ],
    "category": "radiofrequency",
    "environment": [
      "home",
      "workplace"
    ],
    "bands": [
      {
        "label": "DECT 1880–1900 MHz (EU)",
        "minHz": 1880000000,
        "maxHz": 1900000000
      },
      {
        "label": "DECT 6.0 1920–1930 MHz (US)",
        "minHz": 1920000000,
        "maxHz": 1930000000
      }
    ],
    "transmitPower": {
      "quantity": "power",
      "unit": "W EIRP",
      "value": 0.25,
      "basis": "regulatory",
      "note": "250 mW peak is the standard DECT burst power. Transmit power is the regulatory or typical maximum; real devices often transmit below it and reduce power when link quality allows.",
      "sourceIds": [
        "fcc-part15"
      ]
    },
    "dutyCycle": "Legacy bases beacon continuously at 100 Hz pulse rate. Models advertised as 'ECO mode' or 'full eco' reduce or stop beaconing when idle.",
    "distanceProfile": [
      {
        "meters": 0.3,
        "value": {
          "quantity": "power-density",
          "unit": "µW/m²",
          "value": 221000,
          "basis": "computed",
          "method": "S = EIRP / (4πd²) with EIRP = 0.25 W, d = 0.3 m",
          "note": "Peak during a burst.",
          "sourceIds": [
            "fcc-part15"
          ]
        }
      },
      {
        "meters": 1,
        "value": {
          "quantity": "power-density",
          "unit": "µW/m²",
          "value": 19900,
          "basis": "computed",
          "method": "S = EIRP / (4πd²) with EIRP = 0.25 W, d = 1 m",
          "note": "Peak during a burst.",
          "sourceIds": [
            "fcc-part15"
          ]
        }
      },
      {
        "meters": 3,
        "value": {
          "quantity": "power-density",
          "unit": "µW/m²",
          "value": 2210,
          "basis": "computed",
          "method": "S = EIRP / (4πd²) with EIRP = 0.25 W, d = 3 m",
          "note": "Peak during a burst.",
          "sourceIds": [
            "fcc-part15"
          ]
        }
      }
    ],
    "mitigations": [
      {
        "action": "Replace a legacy DECT base with a corded phone, or with a full-eco model that stops beaconing when idle.",
        "effect": "Removes a continuous pulsed source that is often the strongest indoor RF emitter in a home.",
        "sourceIds": [
          "sbm-2024"
        ]
      },
      {
        "action": "Never site the base in a bedroom or on a desk.",
        "effect": "Distance is the only mitigation that works against a continuously beaconing base."
      }
    ],
    "measureWith": [
      "broadband-rf-meter"
    ],
    "related": [
      "limits:sbm-2024-rf-extreme"
    ]
  },
  "sources": [
    {
      "id": "fcc-part15",
      "title": "47 CFR Part 15 — Radio Frequency Devices (unlicensed transmitter power limits)",
      "publisher": "U.S. Government Publishing Office (eCFR)",
      "url": "https://www.ecfr.gov/current/title-47/part-15",
      "kind": "regulation",
      "retrieved": "2026-08-12"
    },
    {
      "id": "sbm-2024",
      "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)",
      "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)",
      "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf",
      "year": 2024,
      "kind": "ngo",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/emitters/dect-cordless-phone",
    "html": "https://emfbase.com/emitters/dect-cordless-phone",
    "markdown": "https://emfbase.com/emitters/dect-cordless-phone.md",
    "collection": "https://emfbase.com/api/emitters"
  }
}