{
  "url": "https://openlegislation.uk/wireless-telegraphy-short-range-devices-exemption-regulations-1993/schedule/paragraph-3",
  "json_url": "https://openlegislation.uk/wireless-telegraphy-short-range-devices-exemption-regulations-1993/schedule/paragraph-3.json",
  "legislation": "uksi/1993/1591",
  "legislation_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) Regulations 1993",
  "legislation_url": "https://openlegislation.uk/wireless-telegraphy-short-range-devices-exemption-regulations-1993",
  "path": "schedule/paragraph/3",
  "kind": "paragraph",
  "number": "3",
  "heading": "Field Disturbance and Doppler Apparatus",
  "text": "Wireless telegraphy apparatus designed or adapted—\n(a) to produce a radiated field and respond to a variation in that field as a result of any intrusion or movement within that field by other devices, objects or persons in order to detect or monitor the movement of such devices, objects or persons; and\n(b) so as to be capable of use only on the frequencies, and at a power or field strength, as the case may be, not exceeding the maximum for such frequencies, for each category of apparatus, specified in the table below—\nCategory\nDescription of apparatus\nFrequencies\nMaximum power (eirp or erp)\nMaximum field strength at a distance of 10 metres\n1\nApparatus designed solely to detect resonant circuits for use on a frequency of 13.56 MHz ± 0.2%\n13.56 MHz ± 0.2%\n4,500 μV/m\n2\nApparatus (other than category 1 above) designed solely to detect resonant circuits\n2-32 MHz\n1,000 μV/m\n3\nApparatus designed solely to detect resonant circuits for the purpose of the prevention of theft\n888.000-889.6375 MHz 888.6875-889.000 MHz\n500 mW erp\n4\nApparatus designed solely for outdoor use\n10.577-10.597 GHz\n1 W eirp\n5\nApparatus designed solely for indoor use\n10.675-10.699 GHz\n1 W eirp\n6\nApparatus designed for fixed or portable applications\n24.150-24.250 GHz\n2 W eirp\n7\nApparatus designed solely for use in a mobile application\n24.250-24.350 GHz\n2 W eirp\n8\nAnti-collision devices\n31.80-33.40 GHz\n5 W eirp\n9\nAny apparatus not within any category above\n2.445-2.455 GHz\n100 mW eirp",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "renumbered (as Sch.1)",
      "affecting": "uksi/1997/1996",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1997"
    },
    {
      "type": "amended",
      "affecting": "uksi/1997/1996",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1997"
    },
    {
      "type": "substituted",
      "affecting": "uksi/1994/2250",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1994"
    },
    {
      "type": "revoked",
      "affecting": "uksi/1994/2250",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1994"
    },
    {
      "type": "substituted",
      "affecting": "uksi/1994/2250",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1994"
    },
    {
      "type": "substituted",
      "affecting": "uksi/1994/2250",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices) (Exemption) (Amendment) Regulations 1994"
    },
    {
      "type": "substituted",
      "affecting": "uksi/1995/1081",
      "affecting_title": "The Wireless Telegraphy (Short Range Devices)(Exemption) (Amendment) Regulations 1995"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1993/1591/schedule/paragraph/3",
    "retrieved_at": "2026-10-29T13:54:51.954099+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}