
                                NAVAID
                        DATA BASE RECORD LAYOUT
                             (NAV-FILE)

INFORMATION EFFECTIVE DATE: 9/9/2021

    RECORD FORMAT: FIXED
    LOGICAL RECORD LENGTH: 805


FILE STRUCTURE DESCRIPTION:
--------------------------
    THERE ARE A VARIABLE NUMBER OF FIXED LENGTH RECORDS FOR
    A SINGLE NAVIGATIONAL AID (NAVAID). THE NUMBER OF RECORDS IS
    DETERMINED BY THE REMARKS, AIRSPACE FIXES, HOLDING PATTERNS, AND
    FAN MARKERS RELATED TO EACH NAVAID.
    THE RECORDS ARE IDENTIFIABLE BY A RECORD TYPE INDICATOR - (NAV1,
    NAV2, NAV3, NAV4, NAV5, NAV6), THE NAVAID FACILITY
    LOCATION IDENTIFIER, AND THE NAVAID FACILITY TYPE.

    EACH RECORD ENDS WITH A CARRIAGE RETURN CHARACTER AND LINE FEED
    CHARACTER (CR/LF). THIS LINE TERMINATOR IS NOT INCLUDED IN THE
    LOGICAL RECORD LENGTH.

    THE FILE IS SORTED BY STATE, CITY, NAVAID NAME, AND FACILITY
    LOCATION IDENTIFIER.


DESCRIPTION OF THE RECORD TYPES:
-------------------------------
    THE 'NAV1' RECORD TYPE CONTAINS BASIC NAVAID INFORMATION.
    THERE IS ALWAYS A NAV1 RECORD.

    THE 'NAV2' RECORD WILL CONTAINS ONE 600 CHARACTER REMARK
    PERTAINING TO THE PRECEEDING NAV1 RECORD.

    THE 'NAV3' RECORD WILL CONTAIN THE COMPULSORY AND NON-COMPULSORY
    AIRSPACE FIXES ASSOCIATED WITH THE PRECEDING
    NAV1 RECORD.  THE RECORD IS PADDED TO ALLOW FOR A MAXIMUM
    OF 18 - 35 CHARACTER FIX ENTRIES.

    THE 'NAV4' RECORD TYPE CONTAINS THE HOLDING PATTERN ASSOCIATED
    WITH THE PRECEDING NAV1 RECORD. WHEN MORE THAN 9 HOLDING PATTERNS
    EXIST, TWO OR MORE NAV4 RECORDS ARE CREATED FOR ONE PRECEDING
    NAV1 RECORD.

    THE 'NAV5' RECORD TYPE CONTAINS THE FAN MARKERS ASSOCIATED WITH
    THE PRECEDING NAV1 RECORD.  THE RECORD IS PADDED TO ALLOW FOR A
    MAXIMUM OF 23 - 26 CHARACTER FAN MARKER ENTRIES.

    THE 'NAV6' RECORD TYPE CONTAINS THE CHECKPOINTS ASSOCIATED WITH
    THE PRECEDING NAV1 RECORD.

    EACH NAV1 RECORD MAY HAVE NONE, ONE OR MANY ASSOCIATED NAV2,
    NAV3, NAV4, NAV5 OR NAV6 RECORDS.  EACH NAV1, NAV2, NAV3, NAV4,
    NAV5, AND NAV6 RECORD CONTAINS THE BASIC NAVAID IDENTIFYING
    INFORMATION.

(NAVAID FACILITY LOCATION IDENTIFIER AND THE NAVAID FACILITY TYPE).

GENERAL INFORMATION:
-------------------
    1.  LEFT JUSTIFIED FIELDS HAVE TRAILING BLANKS
    2.  RIGHT JUSTIFIED FIELDS HAVE LEADING BLANKS
    3.  ELEMENT NUMBER IS FOR TERMINAL REFERENCE ONLY
        AND NOT IN THE RECORD.
    4.  THE UNIQUE NAV ID (ELEMENT NUMBER: DLID) IS MADE UP OF
        THE FACILITY IDENT, THE FACILITY TYPE CODE, AND THE CITY.
    5.  LATITUDE AND LONGITUDE INFORMATION IS REPRESENTED
        IN TWO WAYS:
        A.  FORMATTED:
           -----------
            LATITUDE     DD-MM-SS.SSSH
            LONGITUDE    DDD-MM-SS.SSSH

        WHERE:           DD IS DEGREES
                         MM IS MINUTES
                         SS.SSS IS SECONDS
                         H IS DECLINATION
            EXAMPLE:     LAT-    39-06-51.070N
                         LONG-   075-27-54.660W

        B.  IN ALL SECONDS :
            ----------------
            LATITUDE AND LONGITUDE       SSSSSS.SSSH
            WHERE    SSSSSS.SSS IS THE DEG/MIN/SEC CONVERTED
                     TO ALL SECONDS
                     H IS THE DECLINATION

            EXAMPLE: LAT-     140811.070N
                     LONG-    27164.66W


****************************************************************

             'NAV1' RECORD TYPE - BASE DATA

****************************************************************

J  T   L   S L   E N
U  Y   E   T O   L U
S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR.
                         NAV1: BASIC NAVAID INFORMATION
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
****************NOTE:  Current unique key for this file is:
                         3 letter id + type + city
L AN 0020 00009  DLID    NAVAID FACILITY TYPE (SEE DESCRIPTION)
                         (EX: VOR/DME)
                 NAVAID           NAVAID

                           TYPE          DESCRIPTION
                           ----          ------------
                           VORTAC        A FACILITY CONSISTING OF TWO
                                         COMPONENTS, VOR AND TACAN,
                                         WHICH PROVIDES THREE INDIVIDUAL
                                         SERVICES: VOR AZIMUTH, TACAN
                                         AZIMUTH AND TACAN DISTANCE(DME)
                                         AT ONE SITE.

                           VOR/DME       VHF OMNI-DIRECTIONAL RANGE WITH
                                         ASSOCIATED DISTANCE MEASURING
                                         EQUIPMENT

                           FAN MARKER    THERE ARE 3 TYPES OF EN ROUTE
                                         MARKER BEACONS. FAN MARKER
                                         LOW POWERED FAN MARKERS AND
                                         Z MARKERS.
                                         A FAN MARKER IS USED TO PROVIDE
                                         A POSITIVE IDENTIFICATION OF
                                         POSITIONS AT DEFINITE POINTS
                                         ALONG THE AIRWAYS.

                           CONSOLAN      A LOW FREQUENCY, LONG-DISTANCE
                                         NAVAID USED PRINCIPALLY FOR
                                         TRANSOCEANIC NAVIGATION.

                           MARINE NDB    A NON DIRECTIONAL BEACON
                                         USED PRIMARILY FOR MARINE
                                         (SURFACE) NAVIGATION.

                           MARINE NDB/DME A NON DIRECTINAL BEACON
                                          WITH ASSOCIATED DISTANCE
                                          MEASURING EQUIPMENT; USED
                                          PRIMARILY FOR MARINE (SURFACE)
                                          NAVIGATION.

                           VOT           A FAA VOR TEST FACILITY

                           NDB           A NONDIRECTIONAL BEACON

                           NDB/DME       NON DIRECTIONAL BEACON WITH
                                         ASSOCIATED DISTANCE MEASURING
                                         EQUIPMENT.

                           TACAN         A TACTICAL AIR NAVIGATION
                                         SYSTEM PROVIDING ASIMUTH AND
                                         SLANT RANGE DISTANCE.

                           UHF/NDB       ULTRA HIGH FREQUENCY/
                                         NON DIRECTIONAL BEACON

                           VOR           A VHF OMNI-DIRECTIONAL RANGE
                                         PROVIDENCE ASIMUTH ONLY

			   DME           DISTANCE MEASURING EQUIPMENT ONLY

L AN 0004 00029 DLID     OFFICIAL NAVAID FACILITY IDENTIFIER

                         -----------------------------------------------
                                    ADMINISTRATIVE   DATA
                         -----------------------------------------------
L AN 0010 00033  N/A     EFFECTIVE DATE; THIS DATE COINCIDES WITH
                         THE 56-DAY CHARTING AND PUBLICATION CYCLE
                         EFFECTIVE DATE.
L AN 0030 00043  N8      NAME OF NAVAID.(EX: WASHINGTON)
L AN 0040 00073  N1      CITY ASSOCIATED WITH THE NAVAID.
                         (EX: WASHINGTON)
L AN 0030 00113  N2      STATE NAME WHERE ASSOCIATED CITY IS LOCATED
                          (MAY NOT BE SAME STATE WHERE NAVAID IS
                           LOCATED) (EX: DC)
L AN 0002 00143  N2S     STATE POST OFFICE CODE WHERE ASSOCIATED
                         CITY IS LOCATED.
                         (MAY NOT BE SAME STATE WHERE NAVAID IS
                          LOCATED) (EX: DC)
L AN 0003 00145  N20     FAA REGION RESPONSIBLE FOR NAVAID (CODE)
                         (EX: AEA)

                           REGION
                            CODES          REGION NAME
                            ----           -----------
                            AAL            ALASKA
                            ACE            CENTRAL
                            AEA            EASTERN
                            AGL            GREAT LAKES
                            AIN            INTERNATIONAL
                            ANE            NEW ENGLAND
                            ANM            NORTHWEST MOUNTAIN
                            ASO            SOUTHERN
                            ASW            SOUTHWEST
                            AWP            WESTERN-PACIFIC


L AN 0030 00148  N3      COUNTRY NAVAID LOCATED IF OTHER THAN U.S
                         (NAME) (EX: CANADA)
L AN 0002 00178  N3S     COUNTRY POST OFFICE CODE NAVAID
                         LOCATED IF OTHER THAN U.S. (EX: CA)
L AN 0050 00180  N10     NAVAID OWNER NAME  (EX: U.S. NAVY)
L AN 0050 00230  N12     NAVAID OPERATOR NAME (EX: U.S. NAVY)
L AN 0001 00280  N47     COMMON SYSTEM USAGE (Y OR N)
                         DEFINES HOW THE NAVAID IS USED.
L AN 0001 00281  N48     NAVAID PUBLIC USE (Y OR N)
                         DEFINES BY WHOM THE NAVAID IS USED
L AN 0011 00282  N28     CLASS OF NAVAID.
                         THE NAVAID CLASS DESIGNATOR MAY BE COMPRISED
                         OF AN ALTITUDE CODE (VOR, VORTAC, VOR/DME, AND
                         TACAN FACILITIES ONLY), AND/OR A COMBINATION
                         OF CLASS CODES.


                                   _______________________

                         ALTITUDE CODE      ALTITUDE DESCRIPTION
                         -------------      --------------------
                         H                  HIGH
                         L                  LOW
                         T                  TERMINAL

                          SEPARATOR CHARACTER:  - (DASH)
                          -------------------

                              CLASS CODE/DESCRIPTION
                              ----------------------
                         AB     AUTOMATIC WEATHER BROADCAST.

                         DME    UHF STANDARD (TACAN COMPATIBLE) DISTANCE
                                MEASURING EQUIPMENT.

                         DME(Y) UHF STANDARD (TACAN COMPATIBLE) DISTANCE
                                MEASURING EQUIPMENT THAT REQUIRES TACAN
                                RECEIVERS TO BE PLACED IN THE 'Y' MODE
                                TO RECEIVE DME

                         H      NON-DIRECTIONAL RADIO BEACON (NDB),
                                (HOMING), POWER 50 WATTS TO LESS THAN
                                2000 WATTS (50 NM AT ALL ALTITUDES).

                         HH     NON-DIRECTIONAL RADIO BEACON (NDB),
                                (HOMING), POWER 2000 WATTS OR MORE
                                (75 NM AT ALL ALTITUDES)

                         H-SAB  NON-DIRECTIONAL RADIO BEACON PROVIDING
                                AUTOMATIC TRANSCRIBED WEATHER SERVICE.

                         LMM    COMPASS LOCATOR STATION WHEN INSTALLED
                                AT MIDDLE MARKER SITE (15 NM AT ALL
                                ALTITUDES).

                         LOM    COMPASS LOCATOR STATION WHEN INSTALLED
                                AT OUTER MARKER SITE (15 NM AT ALL
                                ALTITUDES).

                         MH     NON-DIRECTIONAL RADIO BEACON (NDB)
                                (HOMING), POWER LESS THAN 50 WATTS
                                (25 NM AT ALL ALTITUDES)

                         S      SIMULTANEOUS RANGE HOMING SIGNAL AND/OR
                                VOICE

                         SABH   NON-DIRECTIONAL RADIO BEACON (NDB) NOT
                                AUTHORIZED FOR IFR OR ATC. PROVIDES
                                AUTOMATIC WEATHER BROADCASTS.

                         TACAN  UHF NAVIGATIONAL FACILITY-OMNIDIREC-
                                TIONAL COURSE AND DISTANCE INFORMATION.

                         VOR    VHF NAVIGATIONAL FACILITY-OMNIDIREC-
                                TIONAL COURSE ONLY.

                         VOR/DME COLLOCATED VOR NAVIGATIONAL FACILITY
                                 AND UHF STANDARD DISTANCE MEASURING
                                 EQUIPMENT.

                         VORTAC  COLLOCATED VOR AND TACAN NAVIGATIONAL
                                 FACILITIES.

                         W       WITHOUT VOICE ON RADIO FACILITY
                                 FREQUENCY.

                         Z       VHF STATION LOCATION MARKER AT A LF
                                 RADIO FACILITY.

                         EXAMPLES:   H-ABVORTAC, L-VOR, H, HH, MH-SAB,
                                     MHW/LOM, H-SAB/LOM

                         NOTE:       MULTIPLE CLASS CODE TYPES MAY BE
                                     SEPARATED BY A / (SLANT) OR A - (DASH)

                         **** AUXILIARY CANADA CLASS CODES   ****
                                   --------------------

                         THESE CODES MAY APPEAR SINGLY, IN
                         MULTIPLES, OR COMBINED WITH THE CODES LISTED
                         ABOVE:

                                CLASS CODE/DESCRIPTION
                                ----------------------

                         A       ATIS(AUTOMATIC TERMINAL INFORMATION
                                      SERVICE)

                         C       TRANSCRIBED WEATHER BROADCAST STATION

                         B       SCHEDULED WEATHER BROADCAST

                         T       FSS OR OTHER ATC AGENCY (EXCEPT PAR)
                                 CAN TRANSMIT ON THIS NAVIGATION FRE-
                                 QUENCY BUT NOT RECEIVE

                         P       PRECISION APPROACH RADAR BACK-UP FRE-
                                 QUENCY

                         L       NDB POWER OUTPUT LESS THAN 50 WATTS

                         M       NDB POWER OUTPUT 50 TO LESS THAN 2000
                                 WATTS

                         H       NDB POWER OUTPUT 2000 WATTS OR MORE

                         Z       75 MHZ STATION LOCATION MARKER OR FAN
                                 MARKER

                         EXAMPLE: M,L,CTMZ,TPM,MZ,LZ,TMZ,BT,
                                  TACAN,VOR/DME,VOR

                                  ------ END OF N28 DESCRIPTION -----


L AN 0011 00293  N52     HOURS OF OPERATION OF NAVAID
                          (EX:  0800-2400)
L AN 0004 00304  N91     IDENTIFIER OF ARTCC WITH HIGH ALTITUDE BOUNDARY THAT THE NAVAID
                         FALLS WITHIN.
L AN 0030 00308  N91     NAME OF ARTCC WITH HIGH ALTITUDE BOUNDARY THAT THE NAVAID
                         FALLS WITHIN.
L AN 0004 00338  N94     IDENTIFIER OF ARTCC WITH LOW ALTITUDE BOUNDARY THAT THE NAVAID
                         FALLS WITHIN.
L AN 0030 00342  N94     NAME OF ARTCC WITH LOW ALTITUDE BOUNDARY THAT THE NAVAID
                         FALLS WITHIN.
                         -----------------------------------------------
                                   GEOGRAPHICAL POSITION DATA
                         -----------------------------------------------

L AN 0014 00372  N4      NAVAID LATITUDE (FORMATTED)
L AN 0011 00386  N4S     NAVAID LATITUDE (ALL SECONDS)
L AN 0014 00397  N5      NAVAID LONGITUDE (FORMATTED)
L AN 0011 00411  N5S     NAVAID LONGITUDE (ALL SECONDS)
L AN 0001 00422  N38     LATITUDE/LONGITUDE SURVERY ACCURACY (CODE)

                           (N38) SURVERY ACCURACY CODE/DESCRIPTION
                                 ---------------------------------
                                          0  =  UNKNOWN
                                          1  =  DEGREE
                                          2  =  10 MINUTES
                                          3  =   1 MINUTE
                                          4  =  10 SECONDS
                                          5  =   1 SECOND OR BETTER
                                          6  =     NOS
                                          7  =  3RD ORDER TRIANGULATION

L AN 0014 00423  N21     LATITUDE OF TACAN PORTION OF VORTAC WHEN TACAN
                          IS NOT SITED WITH VOR (FORMATTED)
L AN 0011 00437  N21S    LATITUDE OF TACAN PORTION OF VORTAC WHEN TACAN
                          IS NOT SITED WITH VOR (ALL SECONDS)
L AN 0014 00448  N22     LONGITUDE OF TACAN PORTION OF VORTAC WHEN TACAN
                          IS NOT SITED WITH VOR (FORMATTED)
L AN 0011 00462  N22S    LONGITUDE OF TACAN PORTION OF VORTAC WHEN TACAN
                          IS NOT SITED WITH VOR (ALL SECONDS)
R AN 0007 00473  N37     ELEVATION IN TENTH OF A FOOT (MSL)

                         -----------------------------
                               MAGNETIC VARIATION
                         -----------------------------
R AN 0005 00480  N45      MAGNETIC VARIATION DEGREES   (00-99)
                          FOLLOWED BY MAGNETIC VARIATION
                          DIRECTION (E,W)
                           (EX: 80W)
                          (NOTE: DME, VOT AND FM NAVAID TYPES DO NOT HAVE MAG 
                          VAR. ANY VALUE IN THIS COLUMN FOR THOSE NAVAID TYPES 
                          SHOULD BE IGNORED.)
R AN 0004 00485  N45S     MAGNETIC VARIATION EPOCH YEAR  (EX: 2015)
                            --- END OF N45 DESCRIPTION ---

                         -----------------------------------------------
                                 FACILITIES/FEATURES OF NAVAID
                         -----------------------------------------------

L AN 0003 00489 N33     SIMULTANEOUS VOICE FEATURE (Y,N, OR NULL)
R  N 0004 00492 N34     POWER OUTPUT (IN WATTS)
L AN 0003 00496 N35     AUTOMATIC VOICE IDENTIFICATION FEATURE
                         (Y, N, OR NULL)
L AN 0001 00499  N36     MONITORING CATEGORY

                         (N36) MONITORING CATEGORY (1,2,3,4)
                               -----------------------------
                          1-INTERNAL MONITORING PLUS A STATUS INDICATOR
                            INSTALLED AT CONTROL POINT. (REVERTS TO A
                            TEMPORARY CATEGORY 3 STATUS WHEN THE CONTROL
                            POINT IS NOT MANNED.)

                          2-INTERNAL MONITORING WITH STATUS INDICATOR AT
                            CONTROL POINT INOPERATIVE BUT PILOT REPORTS
                            INDICATE FACILITY IS OPERATING NORMALLY.
                             (THIS IS A TEMPORARY SITUATION THAT
                              REQUIRES NO PROCEDURAL ACTION.)

                          3-INTERNAL MONITORING ONLY. STATUS INDICATOR
                            NON INSTALLED AT CONTROL POINT.

                          4-INTERNAL MONITOR NOT INSTALLED. REMOTE
                            STATUS INDICATOR PROVIDED AT CONTROL POINT.
                            THIS CATEGORY IS APPLICABLE ONLY TO
                            NON-DIRECTIONAL  BEACONS.
                                   ---- END OF N36 DESCRIPTION ----

L AN 0030 00500 N23     RADIO VOICE CALL (NAME)
                         (EX: WASHINGTON RADIO)
L AN 0004 00530 N24     CHANNEL (TACAN)  NAVAID TRANSMITS ON
                         (EX : 51X)
R  N 0006 00534 N25     FREQUENCY THE NAVAID TRANSMITS ON
                         (EXCEPT TACAN)
                         (EX:  110.60 298)
R  N 0024 00540 N75     TRANSMITTED FAN MARKER/MARINE RADIO BEACON
                          IDENTIFIER  EX: (DOT,DASH SEQUENCE USED)
L AN 0010 00564 N76     FAN MARKER TYPE (BONE OR ELLIPTICAL)
L AN 0003 00574 N77     TRUE BEARING OF MAJOR AXIS OF FAN MARKER
                           EX: IN WHOLE DEGREES (001-360)
L AN 0002 00577 N29     VOR STANDARD SERVICE VOLUME 
                          H=HIGH ALTITUDE, 
                          L=LOW ALTITUDE, 
                          T=TERMINAL, 
                          VH=VOR HIGH, 
                          VL=VOR LOW

                          CLASS     ALTITIUDE            MILES
                          -----     ---------            -----
                          T         BETWEEN 1000' AND       25
                                    12,000' 

                          L         BETWEEN 1000' AND       40
                                    18,000'

                          H         BETWEEN 1000' AND       40
                                    14,499'
                          H         BETWEEN 14,500'        100
                                    AND 17,999'
                          H         BETWEEN 18,000'        130
                                    AND FL 450
                          H         ABOVE FL 450           100

                          VL        BETWEEN 1000' AND       40
                                    4999'
                          VL        BETWEEN 5000' AND       70
                                    17,999'

                          VH        BETWEEN 1000' AND       40
                                    4999'
                          VH        BETWEEN 5000' AND       70
                                    14,499'
                          VH        BETWEEN 14,500' AND    100
                                    17,999'
                          VH        BETWEEN 18,000' AND    130
                                    FL 450
                          VH        ABOVE FL 450           100

L AN 0002 00579 NA      DME STANDARD SERVICE VOLUME
                          H=HIGH ALTITUDE, 
                          L=LOW ALTITUDE, 
                          T=TERMINAL, 
                          DH=DME HIGH,
                          DL=DME LOW

                          CLASS     ALTITIUDE            MILES
                          -----     ---------            -----
                          T         BETWEEN 1000' AND       25
                                    12,000' 

                          L         BETWEEN 1000' AND       40
                                    18,000'

                          H         BETWEEN 1000' AND       40
                                    14,499'
                          H         BETWEEN 14,500'        100
                                    AND 17,999'
                          H         BETWEEN 18,000'        130
                                    AND FL 450
                          H         ABOVE FL 450           100

                          DL        BETWEEN 12,900' AND    130 
                                    18,000'

                          DH        BETWEEN 12,900' AND    130 
                                    FL 450
                          DH        ABOVE FL 450           100

L AN 0003 00581 N30     LOW ALTITUDE FACILITY USED IN HIGH STRUCTURE
                         (Y, N, OR NULL)
L AN 0003 00584 N31     NAVAID Z MARKER AVAILABLE (Y, N, OR NULL)
L AN 0009 00587 N32     TRANSCRIBED WEATHER BROADCAST HOURS (TWEB)
                         (EX: 0500-2200)
L AN 0020 00596 N95     TRANSCRIBED WEATHER BROADCAST PHONE NUMBER
L AN 0004 00616 N49S    ASSOCIATED/CONTROLLING FSS (IDENT)
L AN 0030 00620 N49     ASSOCIATED/CONTROLLING FSS (NAME)
L AN 0100 00650 F15     HOURS OF OPERATION OF CONTROLLING FSS
                          (EX: 0800-2400)
L AN 0004 00750 N49B    NOTAM ACCOUNTABILITY CODE (IDENT)

                        -----------------------------------------------
                                   CHARTING  DATA
                        -----------------------------------------------

L AN 0016 00754 N80     QUADRANT IDENTIFICATION AND RANGE LEG BEARING
                         (LFR ONLY) (EX: 151N190A311N036A)

                        -----------------------------------------------
                                   NAVAID STATUS
                        -----------------------------------------------

L AN 0030 00770  N41,    NAVIGATION AID STATUS
                 N42

                         -----------------------------------------------
                             PITCH, CATCH, AND SUA/ATCAA FLAGS
                         -----------------------------------------------

L AN 0001 00800  N/A    PITCH FLAG (Y OR N)

L AN 0001 00801  N/A    CATCH FLAG (Y OR N)

L AN 0001 00802  N/A    SUA/ATCAA FLAG (Y OR N)

L AN 0001 00803  N/A    NAVAID RESTRICTION FLAG
			(Y, N, OR NULL)
L AN 0001 00804  N/A    HIWAS FLAG
                        (Y, N, OR NULL)
L AN 0001 00805  N/A    TRANSCRIBED WEATHER BROADCAST (TWEB) RESTRICTION
  			(Y, N, OR NULL)


*********************************************************************
*
*            'NAV2' RECORD TYPE - NAVAID REMARKS
*
*********************************************************************

J  T   L   S L   E N
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S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR.
                         NAV2: NAVAID REMARKS
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
L AN 0020 00009  DLID    NAVAID FACITITY TYPE (EX: VOR/DME)
                         (SEE NAV1 RECORD FOR DESCRIPTION)
L AN 0600 00029  RMRKS   NAVAID REMARKS. FREE FORM TEXT
                         (NOTE: NAVAID RADIAL RESTRICTIONS ARE IDENTIFIED BY 
                         FLIGHT INSPECTION AND ARE PUBLISHED AS NAVIAD 
                         REMARKS. 
                         NOTE: STAND-ALONE DME RESTRICTIONS: THERE IS A 
                         NEED TO DIFFERENTIATE BETWEEN RESTRICTION RADIALS AT 
                         VOR/DMES, VORTAC, AND RESTRICTION RADIALS REFERENCED 
                         TO TRUE NORTH AT STAND-ALONE DMES. THE T AFTER THE 
                         RADIAL REPRESENTS TRUE NORTH.
                         EX: DME UNUSBL 080T-125T BLW 10000FT)
L AN 0177 00629  N/A     FILLER.

*********************************************************************
*
*            'NAV3' RECORD TYPE - COMPULSORY AND NON-COMPULSORY
*                                 AIRSPACE FIXES ASSOCIATED WITH NAVAID
*
*********************************************************************

J  T   L   S L   E N
U  Y   E   T O   L U
S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR.
                         NAV3: CUMPULSORY AND NON-CUMPULSORY AIRSPACE
                               FIXES ASSOCIATED WITH NAVAID
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
L AN 0020 00009  DLID    NAVAID FACITITY TYPE (EX: VOR/DME)
                         (SEE NAV1 RECORD FOR NAVAID FACILITY TYPE)
L AN 0036 00029  N83     NAME(S) OF FIXES (FIX-FILE), THE ID'(S) OF
                         THE STATE IN WHICH THE FIX IS LOCATED, AND
                         THE ASSOCIATED ICAO REGION CODE.
                         (EX: FIX NAME*FIX STATE*ICAO REGION CODE -
                          WHITE*TX*K1; ORICH*LA*K2)
L AN 0720 00065  N/A     SPACE ALLOCATED FOR 20 MORE FIXES
                         (NOTE:  THIS RECORD MAY CONTAIN UP TO
                                 21 FIX DATA)
L AN 0021 00785  N/A     BLANKS.


*********************************************************************
*
*            'NAV4' RECORD TYPE - HOLDING PATTERNs (HPF) ASSOCIATED
*                                 WITH NAVAID
*
*********************************************************************

J  T   L   S L   E N
U  Y   E   T O   L U
S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR
                         NAV4: HOLDING PATTERNS ASSOCIATED WITH NAVAID
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
L AN 0020 00009  DLID    NAVAID FACITITY TYPE (EX: VOR/DME)
                         (SEE 'NAV1' RECORD FOR DESCRIPTION)

L AN 0080 00029  N84     NAME(S) OF HOLDING PATTERN(S)
                         AND THE STATE IN WHICH THE
                         HOLDING PATTERN(S) IS (ARE) LOCATED.
                          (EX: NAVAID NAME & FAC TYPE*NAV STATE-
                                  GEORGETOWN NDB*TX)
R  N 0003 00109          PATTERN (NUMBER) OF THE HOLDING PATTERN
L AN 0664 00112          SPACE ALLOCATED FOR 8 MORE HOLDING PATTERNS.
                         EACH HOLDING PATTERN HAS 80 CHARACTER NAME
                         AND 3 FOR PATTERN (NUMBER).
L AN 0030 00776  N/A     BLANKS.

********************************************************************
*
*            'NAV5' RECORD TYPE - FAN MARKERS ASSOCIATED WITH NAVAID
*
********************************************************************

J  T   L   S L   E N
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S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR.
                         NAV5: FAN MARKER ASSOCIATED WITH NAVAID
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
L AN 0020 00009  DLID    NAVAID FACITITY TYPE (EX: VOR/DME)
                         (SEE NAV1 RECORD DESCRIPTION)
L AN 0030 00029  N81     NAME(S) OF FAN MARKER(S)
L AN 0690 00059  N/A     SPACE ALLOCATED FOR 23 MORE FAN MARKERS
                         (NOTE:  THIS RECORD MAY CONTAIN UP TO
                                 24 FAN MARKERS)
L AN 0057 00749  N/A     BLANKS

********************************************************************
*
* 'NAV6' RECORD TYPE - VOR RECEIVER CHECKPOINTS ASSOCIATED WITH NAVAID
*
********************************************************************

J  T   L   S L   E N
U  Y   E   T O   L U
S  P   N   A C   E M
T  E   G   R A   M B
       T   T T   E E
       H     I   N R
             O   T
             N           FIELD DESCRIPTION

L AN   04 00001  N/A     RECORD TYPE INDICATOR.
                         NAV6: VOR RECEIVER CHECKPOINT ASSOCIATED WITH NAVAID
L AN 0004 00005  DLID    NAVAID FACILITY IDENTIFIER
L AN 0020 00009  DLID    NAVAID FACITITY TYPE (EX: VOR/DME)
                         (SEE NAV1 RECORD DESCRIPTION)
L AN 0002 00029  N/A     AIR/GROUND CODE
                         A=AIR, G=GROUND, G1=GROUND ONE
R  N 0003 00031  N/A     BEARING OF CHECKPOINT
R  N 0005 00034  N/A     ALTITUDE ONLY WHEN CHECKPOINT IS IN AIR
L AN 0004 00039  N/A     AIRPORT ID
L AN 0002 00043  N/A     STATE CODE IN WHICH ASSOCIATED CITY IS LOCATED
L AN 0075 00045  N/A     NARRATIVE DESCRIPTION ASSOCIATED WITH
                         THE CHECKPOINT IN AIR
L AN 0075 00120  N/A     NARRATIVE DESCRIPTION ASSOCIATED WITH
                         THE CHECKPOINT ON GROUND
L AN 0611 00195  N/A     BLANKS

