{
  "symbolset": "50",
  "name": "Signals Intelligence",
  "main icon": [
    { "entity": "Unspecified", "code": "000000", "remarks": "" },
    {
      "entity": "Signal Intercept",
      "code": "110000",
      "remarks": "Reserved for hierarchical purposes."
    },
    {
      "entity": "Signal Intercept",
      "entity type": "Communications",
      "code": "110100",
      "remarks": ""
    },
    {
      "entity": "Signal Intercept",
      "entity type": "Jammer",
      "code": "110200",
      "remarks": ""
    },
    {
      "entity": "Signal Intercept",
      "entity type": "Radar",
      "code": "110300",
      "remarks": ""
    }
  ],
  "modifier 1": [
    { "modifier": "Unspecified", "category": "", "code": "00", "remarks": "" },
    {
      "modifier": "Anti-Aircraft Fire Control",
      "category": "Land/Sea Surface Radar",
      "code": "01",
      "remarks": ""
    },
    {
      "modifier": "Airborne Search and Bombing",
      "category": "Air Radar",
      "code": "02",
      "remarks": ""
    },
    {
      "modifier": "Airborne Intercept",
      "category": "Air Radar",
      "code": "03",
      "remarks": ""
    },
    {
      "modifier": "Altimeter",
      "category": "Air Radar",
      "code": "04",
      "remarks": ""
    },
    {
      "modifier": "Airborne Reconnaissance and Mapping",
      "category": "Air Radar",
      "code": "05",
      "remarks": ""
    },
    {
      "modifier": "Air Traffic Control",
      "category": "Air/Land/Sea Surface Radar",
      "code": "06",
      "remarks": ""
    },
    {
      "modifier": "Beacon Transponder (not IFF)",
      "category": "Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "07",
      "remarks": ""
    },
    {
      "modifier": "Battlefield Surveillance",
      "category": "Air/Land Radar",
      "code": "08",
      "remarks": ""
    },
    {
      "modifier": "Controlled Approach",
      "category": "Land/Sea Surface Radar",
      "code": "09",
      "remarks": ""
    },
    {
      "modifier": "Controlled Intercept",
      "category": "Air/Land/Sea Surface Radar",
      "code": "10",
      "remarks": ""
    },
    {
      "modifier": "Cellular/Mobile",
      "category": "Air/Land/Sea Surface/Sea Subsurface Communications",
      "code": "11",
      "remarks": ""
    },
    {
      "modifier": "Coastal Surveillance",
      "category": "Land Radar",
      "code": "12",
      "remarks": ""
    },
    {
      "modifier": "Decoy/Mimic",
      "category": "Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "13",
      "remarks": ""
    },
    {
      "modifier": "Data Transmission",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "14",
      "remarks": ""
    },
    {
      "modifier": "Earth Surveillance",
      "category": "Space Radar",
      "code": "15",
      "remarks": ""
    },
    {
      "modifier": "Early Warning",
      "category": "Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "16",
      "remarks": ""
    },
    {
      "modifier": "Fire Control",
      "category": "Air/Land/Sea Surface Radar",
      "code": "17",
      "remarks": ""
    },
    {
      "modifier": "Ground Mapping",
      "category": "Air Radar",
      "code": "18",
      "remarks": ""
    },
    {
      "modifier": "Height Finding",
      "category": "Land/Sea Surface Radar",
      "code": "19",
      "remarks": ""
    },
    {
      "modifier": "Harbor Surveillance",
      "category": "Land Radar",
      "code": "20",
      "remarks": ""
    },
    {
      "modifier": "Identification, Friend or Foe (Interrogator)",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "21",
      "remarks": ""
    },
    {
      "modifier": "Instrument Landing System",
      "category": "Land/Sea Surface Radar",
      "code": "22",
      "remarks": ""
    },
    {
      "modifier": "Ionospheric Sounding",
      "category": "Air/Land Radar",
      "code": "23",
      "remarks": ""
    },
    {
      "modifier": "Identification, Friend or Foe (Transponder)",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "24",
      "remarks": ""
    },
    {
      "modifier": "Barrage Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "25",
      "remarks": ""
    },
    {
      "modifier": "Click Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "26",
      "remarks": ""
    },
    {
      "modifier": "Deceptive Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "27",
      "remarks": ""
    },
    {
      "modifier": "Frequency Swept Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "28",
      "remarks": ""
    },
    {
      "modifier": "Jammer (general)",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "29",
      "remarks": ""
    },
    {
      "modifier": "Noise Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "30",
      "remarks": ""
    },
    {
      "modifier": "Pulsed Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "31",
      "remarks": ""
    },
    {
      "modifier": "Repeater Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "32",
      "remarks": ""
    },
    {
      "modifier": "Spot Noise Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "33",
      "remarks": ""
    },
    {
      "modifier": "Transponder Jammer",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "34",
      "remarks": ""
    },
    {
      "modifier": "Missile Acquisition",
      "category": "Air/Land/Sea Surface Radar",
      "code": "35",
      "remarks": ""
    },
    {
      "modifier": "Missile Control",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "36",
      "remarks": ""
    },
    {
      "modifier": "Missile Downlink",
      "category": "Air Radar",
      "code": "37",
      "remarks": ""
    },
    {
      "modifier": "Meteorological",
      "category": "Air/Land/Sea Surface Radar",
      "code": "38",
      "remarks": ""
    },
    {
      "modifier": "Multi-Function",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "39",
      "remarks": ""
    },
    {
      "modifier": "Missile Guidance",
      "category": "Air/Land/Sea Surface Radar",
      "code": "40",
      "remarks": ""
    },
    {
      "modifier": "Missile Homing",
      "category": "Air Radar",
      "code": "41",
      "remarks": ""
    },
    {
      "modifier": "Missile Tracking",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "42",
      "remarks": ""
    },
    {
      "modifier": "Navigational/General",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "43",
      "remarks": ""
    },
    {
      "modifier": "Navigational/Distance Measuring Equipment",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "44",
      "remarks": ""
    },
    {
      "modifier": "Navigation/Terrain Following",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "45",
      "remarks": ""
    },
    {
      "modifier": "Navigational/Weather Avoidance",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "46",
      "remarks": ""
    },
    {
      "modifier": "Omni-Line of Sight (LOS)",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Jammer",
      "code": "47",
      "remarks": ""
    },
    {
      "modifier": "Proximity Use",
      "category": "Air Radar",
      "code": "48",
      "remarks": ""
    },
    {
      "modifier": "Point-to-Point Line of Sight (LOS)",
      "category": "Air/Land/Sea Surface/Sea Subsurface Communications",
      "code": "49",
      "remarks": ""
    },
    {
      "modifier": "Instrumentation",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "50",
      "remarks": ""
    },
    {
      "modifier": "Range Only",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "51",
      "remarks": ""
    },
    {
      "modifier": "Sonobuoy",
      "category": "Sea Surface/Sea Subsurface Radar",
      "code": "52",
      "remarks": ""
    },
    {
      "modifier": "Satellite Downlink",
      "category": "Space Communications",
      "code": "53",
      "remarks": ""
    },
    {
      "modifier": "Space",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "54",
      "remarks": ""
    },
    {
      "modifier": "Surface Search",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "55",
      "remarks": ""
    },
    {
      "modifier": "Shell Tracking",
      "category": "Land Radar",
      "code": "56",
      "remarks": ""
    },
    {
      "modifier": "Satellite Uplink",
      "category": "Air/Land/Sea Surface/Sea Subsurface Communications",
      "code": "57",
      "remarks": ""
    },
    {
      "modifier": "Target Acquisition",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "58",
      "remarks": ""
    },
    {
      "modifier": "Target Illumination",
      "category": "Air/Land/Sea Surface Radar",
      "code": "59",
      "remarks": ""
    },
    {
      "modifier": "Tropospheric Scatter",
      "category": "Land Communications",
      "code": "60",
      "remarks": ""
    },
    {
      "modifier": "Target Tracking",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "61",
      "remarks": ""
    },
    {
      "modifier": "Unknown",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "62",
      "remarks": ""
    },
    {
      "modifier": "Video Remoting",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "63",
      "remarks": ""
    },
    {
      "modifier": "Experimental",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Radar",
      "code": "64",
      "remarks": ""
    },
    {
      "modifier": "Cyberspace",
      "category": "Space/Air/Land/Sea Surface/Sea Subsurface Capability",
      "code": "65",
      "remarks": ""
    },
    {
      "modifier": "{Reserved for future use}",
      "category": "",
      "code": "66-98",
      "remarks": ""
    }
  ],
  "modifier 2": [
    { "modifier": "Unspecified", "category": "", "code": "00", "remarks": "" },
    {
      "modifier": "Cyberspace",
      "category": "Capability",
      "code": "01",
      "remarks": ""
    },
    {
      "modifier": "{Reserved for future use}",
      "category": "",
      "code": "02-98",
      "remarks": ""
    }
  ]
}