Table 6.49 — EEs for EAs with labels beginning with N
Attribute label Enumerant label Concept definition Figure(s) Code
NATIONAL_PAINT_SCHEME_VALUE-
_SET
  The value set of a formatted <<NATIONAL_PAINT_SCHEME>>.    
  HISTORICAL A Basic Latin string containing one of the following: "Commonwealth of Independent States", "Gaza Strip, Israel", "Jan Mayen", "Montenegro", "Occupied Palestinian Territory", "Pacific Islands Trust Territories", "Paracel Islands", "Serbia", "Spratly Islands", "Svalbard", "West Bank, Israel", "Republic of Zaire", or "None present"; historical.   2
  ISO_ENGLISH_CTRY_NAME A specific short country name in English, formatted in a Basic Latin string as specified in ISO 3166-1:2006, List 1, COUNTRY NAME.   3
  UNCONSTRAINED A Basic Latin string whose contents are not further constrained; unconstrained.   1
NATIVE_SETTLEMENT_TYPE   The type of distribution of native <DWELLING>s; native settlement type.    
  CENTRALIZED Centralized to a relatively small <REGION>.   1
  CONTINUOUS Spread continuously over a relatively large <REGION>.   2
NAVIGABLE_STATUS   Information about the navigability of a <WATERBODY> by ocean-going and/or large <VESSEL>s; navigable status.    
  NAVIGABLE Affording passage to <VESSEL>s; navigable [S32, "navigable (adj.)"]. A navigable <OBJECT> is capable of being navigated.   1
  NAVIGABLE_ABANDONED <<<NAVIGABLE>>> but operational support has been abandoned.
EXAMPLE     A <WATER_CHANNEL> that remains <<<NAVIGABLE>>> but may no longer be maintained at stated depth.
  2
  NAVIGABLE_OPERATIONAL <<<NAVIGABLE>>> and is operating in accordance with stated schedule and/or stated depth and clearance; navigable operational.
EXAMPLES     A <WATER_CHANNEL> maintained at stated depth, a <HYDROGRAPHIC_LOCK> manned on a regular schedule.
  3
  NAVIGABLE_PERIODIC_RESTRICTION <<<NAVIGABLE>>> but periodic restrictions apply; navigable periodic restriction.
EXAMPLES     <<<NAVIGABLE>>> but seasonally restricted due to <ICE>, <<<NAVIGABLE>>> but only manned at irregular intervals.
  4
  NOT_NAVIGABLE Not <<<NAVIGABLE>>>.   5
NAVIGATION_PATH_TYPE   The type of <LINE> defining a marine navigation path.    
  GEODESIC A <LINE> of shortest distance between two points on a <SURFACE>; geodesic. A geodesic is also known as a great circle.   1
  LOXODROME A <LINE> that crosses successive meridians of longitude on an ellipsoid of revolution at a constant angle; loxodrome. A loxodrome is also known as a rhumb line.   2
NAVIGATION_SYSTEM_TYPE   The type of technology used in electronic navigation. The value is either a type of <EQUIPMENT> or the name of a <SYSTEM>.    
  AERO_RADIO Aeronautical radio.   1
  AERO_RADIO_RANGE Aeronautical radio range.   2
  AERODROME_SURV_RADAR Aerodrome surveillance radar.   3
  AIR_ROUTE_SURV_RADAR Air route surveillance radar.   4
  BONE_MARKER An electronic navigation <FACILITY> (a marker beacon) transmitting a 75 megahertz bone-shaped radiation pattern; bone marker [F7110.65, "MARKER BEACON"].   5
  CHAIKA An electronic position fixing system using pulsed radio transmissions at 100 kilohertz; Chaika.   6
  CIRCULAR_RADIO_BEACON A circular radio <BEACON>.   7
  CONSOL_BEACON A type of long-range position fixing radio <BEACON> referred to as a CONSOL beacon.   8
  DECCA A high accuracy, short- to medium-range radio <AID_TO_NAVIGATION> intended for coastal and landfall navigation; DECCA.   9
  DIFFERENTIAL_GPS A system that improves on <<<GPS>>> by removing common-mode errors; differential GPS.   10
  DIRECTIONAL_RADIO_BEACON A directional radio <BEACON>.   11
  DISTANCE_FINDING Distance finding.   12
  DME <EQUIPMENT> (airborne and ground) used to measure the slant range distance of an <AIRCRAFT> from the DME <AID_TO_NAVIGATION> [F7110.65, "DISTANCE MEASURING EQUIPMENT"].   13
  FAN_MARKER_BEACON An electronic navigation system transmitting a 75 megahertz vertical fan radiation pattern; Fan Marker (FM) beacon [F7110.65, "MARKER BEACON"].   14
  GCA A radar approach system operated from the <PLANETARY_SURFACE> by air traffic control <PERSONNEL> transmitting instructions to the air pilot by radio; ground control approach (GCA). The approach may be conducted with air surveillance radar only, or with both surveillance and precision approach radar [F7110.65, "GROUND CONTROLLED APPROACH"].   15
  GCI A guidance technique that permits control of friendly <AIRCRAFT> or guided <MISSILE>s for the purpose of effecting interception; ground control intercept (GCI).   16
  GLIDE_SLOPE Glide slope.   17
  GPS A space-based radio positioning, navigation, and time-transfer system that provides highly accurate <LOCATION> and <<VELOCITY>> information, and precise time, on a continuous global basis, to an unlimited number of properly equipped users; Global Positioning System (GPS).   18
  HIFIX A land-based radio location system intended for coastal and landfall navigation; HiFix.   19
  HYPERFIX A land based radio location system intended for coastal and landfall navigation operating in the 1,6 megahertz to 3,4 megahertz band; HyperFix.   20
  ILS A precision instrument approach system which normally consists of the following electronic components and visual aids: <<<LOCALIZER>>>, glide slope, outer marker, middle marker, and approach <LIGHT>s; instrument landing system (ILS) [F7110.65, "INSTRUMENT LANDING SYSTEM"].   21
  ILS_OR_DME <<<ILS>>> and/or <<<DME>>>.   22
  LOCALIZER The <COMPONENT> of an <<<ILS>>> that provides course guidance to the <RUNWAY>; localizer.   23
  LOCALIZER_DIRECTION_AID Localizer Direction Aid (LDA).   24
  LOCALIZER_WITH_DME <<<LOCALIZER>>> with <<<DME>>>.   25
  LOCATOR_WITHOUT_DME_INNER-
_MARKER
Locator without <<<DME>>> or inner runway marker.   26
  LORAN_C A low frequency electronic position fixing system using pulsed transmissions at 100 kilohertz; LORAN C.   27
  MICROWAVE A precision instrument approach system operating in the microwave spectrum [F7110.65, "MICROWAVE LANDING SYSTEM"].   28
  MLS A precision instrument approach system operating in the microwave spectrum that normally consists of three components: an azimuth station, an elevation station, and precision DME; microwave landing system (MLS) [F7110.65, "MICROWAVE LANDING SYSTEM"].   29
  MLS_AZIMUTH_GUIDE The component of a <<<MLS>>> that provides azimuth information; MLS azimuth guide.   30
  MLS_ELEVATION_GUIDE The component of a <<<MLS>>> that provides elevation guidance information; MLS elevation guide.   31
  NDB A L/MF or UHF radio beacon transmitting non-directional (omnidirectional) signals whereby the pilot of an <AIRCRAFT> equipped with direction finding <EQUIPMENT> can determine his bearing to or from the radio <BEACON> and "home" on, or track to or from, the station; non-directional beacon (NDB).   32
  NDB_OR_DME <<<NDB>>> and/or <<<DME>>>.   33
  NONE_PRESENT No navigation system is present; none present.   34
  OMEGA A long-range radio navigational aid, which operates within the VLF <<FREQUENCY>> band; omega. The system comprises eight land-based stations.   35
  PAR Radar <EQUIPMENT> operated to detect and display azimuth, elevation, and range of <AIRCRAFT> on the final approach course to a <RUNWAY>; precision approach radar (PAR) [F7110.65, "PRECISION APPROACH RADAR"].   36
  PAR_TOUCHDOWN_REFLECTOR A PAR touchdown reflector.   37
  PRECISION_APPROACH_PATH-
_INDICATOR
A precision approach path indicator.   38
  QTG_STATION Navigation radar station located on or near a major coastline that responds to QTG interrogation.   39
  RACON Radar transponder <BEACON> with Morse identification.   40
  RADAR <RADAR_DEVICE>.   41
  RADAR_AERIAL The <AERIAL> of a radar.   42
  RADAR_REFLECTOR Radar reflector.   43
  RADAR_STATION <RADAR_STATION>.   44
  RADIO Radio.   45
  RADIO_BEACON An <<<NDB>>>; radio beacon. When the radio beacon is installed in conjunction with an ILS marker, it is normally called a Compass Locator.   46
  RADIO_BEACON_TYPE_UNKNOWN <<<RADIO_BEACON>>>, type unknown.   47
  RADIO_DIRECTION_FINDING A radio receiver equipped with a directional sensing <AERIAL> used to take bearings on a radio transmitter; radio direction finding [F7110.65, "DIRECTION FINDER"].   53
  RADIO_RANGE Radio range.   48
  RADIO_STATION Radio station.   49
  RADIO_TELEGRAPH Radio telegraph.   50
  RADIO_TELEPHONE Radio <TELEPHONE>.   51
  RAMARK Radar <BEACON> transmitting continuously; RAMARK.   52
  ROTATING_LOOP_RADIO_BEACON Rotating loop radio <BEACON>.   54
  SIMPLIFIED_DIRECTIONAL Simplified directional <FACILITY>.   55
  SYLEDIS A ranging position fixing system operating at 420-450 megahertz over a range of up to 400 kilometres; SYLEDIS.   56
  TACTICAL_AIR Tactical air navigation <EQUIPMENT>.   57
  TELEVISION Television.   58
  TORAN An electronic position fixing system used mainly by aircraft; TORAN.   59
  TRICOLOUR_PANEL Tricolour panel.   60
  TRICOLOUR_VASI Tricolour VASI (TRCV).   61
  TVASI TVASI.   62
  VASI Visual approach slope indicator (VASI).   63
  VASI_PULSATING A PVASI.   64
  VFR_TEST_SIGNAL_MAKER VFR test signal maker.   65
  VOR VHF omnidirectional range station; VOR.   66
  VOR_AND_DME <<<VOR>>> with <<<DME>>>.   67
  VOR_TACAN <<<VOR>>> and/or TACAN.
EXAMPLE     <<<VORTAC>>>.
  68
  VORTAC <<<VOR>>> and TACAN; VORTAC.   69
NON_REGULATORY_AIRSPACE_CLASS   The class of a non-regulatory <AIRSPACE>.    
  SPECIAL_USE Special use airspace (SUA) is designed to segregate flight activity related to military and national security needs from other airspace users.   1
NON_SUB_CONTACT_SOURCE   The source of a reported <NON_SUBMARINE_CONTACT>.    
  ABSTRACTS_1914_18 Abstracts of losses 1914 - 1918.   1
  AMERICAN_SHIP_CASUALTIES_WW_I American ship casualties of WW I.   2
  BHO_CHART British Home Office charts and chart reports.   3
  BHO_FILES British Home Office files.   4
  BHO_NOTICE_TO_MARINERS British Home Office Notice to Mariners.   5
  BHO_WRECK_INFORMATION British Home Office wreck information list and supplement dated 10 March 1945 and 30 September 1946.   6
  BRITISH_1921_WRECK_CHARTS British Admiralty wreck charts, 1921.   7
  BRITISH_1961_WRECK_CHARTS British Admiralty wreck charts, 1961.   8
  BRITISH_MERCHANT_VESSELS British <MERCHANT_MARINE_VESSEL>s captured or destroyed by enemy action 1914 - 1918.   9
  BRITISH_SHIPS_LOST_WW_II British and foreign merchant ships lost during WW II.   10
  COMNAVFE NATO Commander Naval Forces, Far East.   11
  COMNAVPAC NATO Commander Naval Forces, Pacific.   12
  DANISH_1914_18_SHIP_LOSSES Smaling Soforklaringer - Danish ship war losses 1914 - 1918.   13
  DANISH_1914_18_WAR_LOSSES List of Danish war losses 1914 - 1918.   15
  DUTCH_WRECK_LIST Dutch wreck list.   14
  DUTCH_WW_I_MERCHANT_LOSSES Netherlands (Dutch) merchant losses - WW I.   16
  FRENCH_WW_I_NAVAL_LOSSES French naval and merchant losses during WW I.   17
  GERMAN_WW_II_SUBMARINE_LOSSES German, Japanese, and Italian submarine losses in WW II.   18
  GREEK_WW_II_LOSSES Greek losses WW II.   19
  ITALIAN_NAVAL_SURVEY_CHARTS Italian naval survey charts and lists.   23
  ITALIAN_NAVY_SURVEY Italian Navy survey.   24
  ITALIAN_WW_I_MERCHANT_LOSSES Italian merchant losses, WW I.   20
  ITALIAN_WW_I_NAVAL_LOSSES Italian naval losses, WW I.   21
  ITALIAN_WW_II_NAVAL_LOSSES Italian naval and merchant losses, WW II.   22
  JAPAN_NAVAL_LOST_WW_II Japanese naval and merchant losses during WW II by all causes (NAVEXOS P-468).   25
  JAPAN_NAVY_IN_WW_II The Imperial Japanese Navy in WW II.   26
  LLOYDS_UNDERWRITERS Lloyds and marine underwriter's reports.   27
  MAD_VERIFIED Report, magnetic anomaly detector verified.   28
  MARITIME_COMMISSION Maritime Commission; also ONI List WW I.   29
  MERCHANT_VESSELS_US_LOST Merchant vessels of the US Lost (Commerce Department).   30
  NAVAL_CHRONOLOGY_WW_II Naval chronology WW II.   31
  NAVAL_LOSSES Naval losses of all nations 3 September 1939 - 15 August 1945.   32
  NORTH_SEA_FISHING_CHARTS North Sea fishing charts.   33
  NORWEGIAN_1914_18_LOSSES Maritime declarations for Norwegian ships for war losses 1914 - 1918.   34
  OFFICE_OF_NAVAL_INTELLIGENCE Office of Naval Intelligence.   35
  OMAN_NATIONAL_HYDROGRAPHIC-
_OFFICE
Oman National Hydrographic Office.   36
  PHOTOGRAPHS_OF_PINNACLES Photographs of pinnacles and miscellaneous metals.   37
  PORTUGAL_HYDROGRAPHIC_OFFICE Portugal Hydrographic Office.   38
  RADIO_NAVIGATION_WARNING Radio Navigation Warning.   39
  RCN_WRECK_PUB_272 Royal Canadian Navy wreck list (RCN Publication 272).   40
  SHIP_VISIT Ship visit reports.   41
  SHIPPING_CASUALTIES State of Shipping Casualties (resulting in total loss in St. Lawrence River and Gulf, on the Atlantic <COAST> from 1896 up to date).   42
  SHIPS_SUNK_BY_GERMANY List of neutral ships sunk by Germany.   43
  SONAR_VERIFIED Report sonar verified.   44
  SPANISH_HYDROGRAPHIC_OFFICE Spanish Hydrographic Office.   45
  SPANISH_WW_I_MERCHANT_LOSSES Spanish merchant losses - WW I.   46
  SWEDISH_1914_20_MERCHANT_LOSS Swedish merchant losses 1914-1920.   47
  SWEDISH_BOARD_SHIPPING Swedish Board of Shipping and Navigation, Hydrographic Department.   48
  TENTH_FLEET_RECORDS_OP374 US Tenth Fleet records (OP-374).   49
  US_COAST_AND_GEODETIC_SURVEY US Coast and Geodetic Survey (National Ocean Survey) charts.   50
  US_COAST_GUARD_DISTRICTS Reports of known wrecks by US Coast Guard Districts 1950.   51
  US_COAST_GUARD_RECORDS US Coast Guard and Geodetic Survey Records.   52
  US_LOSSES_DIRECTOR_FLEET-
_OPERATIONS
US losses - Director, Fleet Operations.   53
  US_NAVY_AT_WAR_1941_45 US Navy at War 1941-1945.   54
  US_NAVY_SONAR US Navy sonar reports and magnetic anomaly detector reports.   55
NON_SUB_CONTACT_SOURCE_TYPE   The type of source of a reported <NON_SUBMARINE_CONTACT>.    
  ACTION Action.   1
  CASUALTY Casualty.   2
  CHART Navigation chart.   3
  CHART_RECORDS Navigation chart records.   4
  MAGNETIC_ANOMALY_DETECTOR Magnetic anomaly detector.   5
  MINESWEEPER Minesweeper.   6
  NORTH_SEA_FISHING_CHARTS North Sea fishing charts.   7
  NOTICE_TO_MARINERS Notice to Mariners.   8
  PHOTOGRAPH Photograph.   9
  POSITION_ACCURATE_FIELD_CHECK Accurate position as determined by field check.   10
  SALVAGE Salvage.   11
  SONAR Sonar.   12
  SURVEY Survey.   13
  SURVIVOR Survivor.   14
  UK_HYDROGRAPHIC_RECORDS UK hydrographic records.
EXAMPLES     UK Hydrographic Office, UK Royal Navy.
  15
  UNSPECIFIED_DETECTOR Unspecified detector.
EXAMPLES     <<<SONAR>>>,<<<MAGNETIC_ANOMALY_DETECTOR>>>.
  16
  US_COAST_GUARD_RECORDS US Coast Guard records.   17
  US_COAST_SURVEY US coast survey.
EXAMPLES     Coast and Geodetic Survey, National Ocean Service.
  18
  US_NAVY US Navy.
EXAMPLES     Headquarters, commands.
  19
  US_WRECK_LIST US wreck list.   20