FLASH UPDATE (HFCC / WPLOT):
Flash-A26: February 3rd 2026 (2240 UTC)   FLASH-B25: February 3rd 2026 (2240 UTC)

Quick UPDATE (Text/dBASE):
QUICK-A26: February 3rd 2026 (2240 UTC)   QUICK-B25:February 3rd 2026 (2240 UTC)


LATEST REGULAR WEEKLY UPDATES:
A26: February 1st 2026 (2340 UTC)     B25: February 1st 2026 (2340 UTC)

Latest Monitoring Statistics of January 9th 2025 Facts that confirm the High Quality
 
current Structure of dBASE Format of ILG Database for dBASE and Excel Import

current Structure of dBASE Format of ILG Database for dBASE and Excel Import

Product No.:
NSTRUC
ILG Info
Description
The current Structure of ILG Database 
Effective from August 25th 2019


 
Field
No.		  FIELD_NAME   SIZE  DESCRIPTION   ADDITIONAL_INFORMATION   SPECIAL_ABBREVIATIONS 
1 FREQ 8/2
numeric		 Frequency in KHz in some cases frequency rounded Carrier Frequency of Utilty Stations (see also for center frequency in last column)
2 CFFREQ 8/2
numeric		 Center Frequency in KHz in some cases frequency rounded important  information for UTILITY station reception
3 PLAN 4 used old abbreviation for seasons based on old ITU broadcasting periods  
 M: March/April,
 J: May - August,
 S: September/October,
 D: November -February,
 ????: inactive,
 ====: standby / alternative
MJSD: full year operation
4 STATION 30 Station with full name Name according to the official station identification External & International  Services in capital letters and Home Services in small letters
5 STN 5 Name of Station in short version    
6 LOCATION 26 Location of Transmitter Site the name of the  Transmitter Site or main town and home port of ships (airborne, coastguard, navy, seaborne)  
7 LC 2 Transmitter Site by CIRAF Zone LINK FOR DETAILS  
8 LONGI 6 Longitude ILG gives degree and minute without dot and blank old ILGRadio format
9 LATI 5 Latitude ILG gives degree and minute without dot and blank old ILGRadio format
10 POSITION 20 Position of Transmitter Site with Longitude and Latitude LINK FOR DETAILS ILG gives GOOGLE EARTH compatible format with degree, minute and second

If Longitude and Latitude gives "00" for Seconds in both cases the transmitter site is not found so far.
11 ITU 3 Administration 3 letter code of  Aministration, official ITU Abbreviations

LINK FOR DETAILS		 additionally listed:
TWN - Taiwan
 
Overseas Territories also given with own code, e.g.
ALS: Alaska
ASC: Ascension
GIB: Gibraltar
HWA: Hawaii
MRT: Martinique
REU: Reunion
12 COUNTRY 18 Country "Geographical" Name of the country ILGRadio gives countries as the world looks like
13 TARGET 8 Target Area External Services:
main taget with details (see right) e.g. AF, AS, AU, CA, EU, ME, NA, PA, SA
Home Services:
in brackets with ADM country code
further description:
e = east
n = north
s = south, w = west
ne = north-east
nw = north-west
se = south-east
sw = south-west
14 CIRAFZONES 30 CIRAF Zones LINK FOR DETAILS  
15 NA 2 Target: North-America "--" if not used  
16 CA 2 Target: Central America & Caribbean "--" if not used  
17 SA 2 Target: South America "--" if not used  
18 EU 2 Target: Europe "--" if not used  
19 AF 2 Target: Africa "--" if not used  
20 ME 2 Target: Middle East "--" if not used  
21 AS 2 Target: Asia "--" if not used  
22 AU 2 Target: Australia "--" if not used  
23 PA 2 Target: Pacific "--" if not used  
24 START 4 START Time (begin of broadcast) in UTC  "Universal Time  Co - Ordinated" LINK FOR DETAILS sign-on time of  **59 minutes rounded by full hour
 
in various cases full-time broadcasts are divided in one hour blocks to make
ILG bandscans much more precisely
25 STOP 4 STOP Time (end of broadcast) in UTC  "Universal Time  Co - Ordinated" LINK FOR DETAILS sign-off time of  **59 minutes rounded by full hour
 
in various cases full-time broadcasts are divided in one hour blocks to make
ILG bandscans much more precisely
26 LANGUAGE 20 Language of Programme full name of language and dialect given UTILITY Entries are starting with "DATA:" followed by details:
CODES (Spy Radio)
DATA (Data Transfer)
EMAIL (E-Mail Transfer)
FAX (Telefax)
METEO (Weather Info)
MORSE  (CW)
RADAR (Over the Horizon)
TELEX (Telegraphy)
TIMES (Time Signals)
VOICE (Traffic/Information)
27 LNG 3 Abbreviation of Language
LINK FOR DETAILS		 Language code based on ISO 639-3
28 GRAPHIC 48 Graphical Diagramm: the exact Occupation of each frequency is presented by the "Times by Lines" giving the Language of the broadcast. This is processed in a Time Scale of 24 hours with a  precision of 30 minutes.
Exclusive ILG data field
 

 


If the transmitter is not on the air during ILGRadio publishing time only a line "------" is given instead !
Capital Letters: External / International / Home Service
 
 Small Letters: SSB transmissions with clear voice
 
 1: Sunday ... 7: Saturday
 #: not daily
 $: Monday-Friday
 @:Monday-Saturday
 =: Saturday/Sunday
 ?: inactive
 -: standby (alternative)| : DRM
 
"!" is given at 6, 12 and 18 hours if this position is not used
29 DAYS 7 Days given in HFCC / ITU format

 
Sundays:1
Monday: 2
Tuesday: 3
Wednesday: 4
Thurdsday: 5
Friday: 6
Saturday: 7
30 POWER 8/3
numeric		 Transmitter Power in kW
(kiloWatt)		 for UTILITY stations correct power not confirmed in many cases Power with MINUS VALUE e.g. -500 indicates Fake or wooden requirement of HFCC / ITU database
31 AZI 3
numeric		  Azimut, maximum radiation of the antenna in degrees
1 - 360 degree
 0 = non direction
 
ATTENTION: HFCC gives 0 or 1 for 360 degree north !!!
 
 
for  low power stations with dipole antennas 0 degree (non-directional) is given while both Azimut are given in REMARKS field
32 AWR 3
numeric		 Angular Width of radiation main lobe (degrees / at 6dB point)   value based on data sheets of antenna manufacturers, detailed data for each MHz band vailable
33 DB 2
numeric		 DECIBEL, the Gain of the antenna in decibel (dBi)   value based on data sheets of antenna manufacturers, detailed data for each MHz band available
34 AE 2
numeric		 Angle of Elevation in Degrees, vert.elevation angle   data based on data sheets of antenna manufacturers, detailed data for each MHz band available
35 ANTENNA 10 describes the Antenna / aerial in Types   Main Antenna Types:
HR: Curtain Antenna
HRS: Curtain Antenna slewable
LPH: Log Periodic Hor.
ND: Non-Directional/Dipole
RHO: Rhombic
36 SLEW 3
numeric		 Slew of Curtain Antenna the Slew in degrees of slewable curtain antennas  
37 ANT 3 Antenna Type by number the antenna code numer according HFCC

e.g. 100 (AHR1/1/.3) ... 999 (special wide)
 		  
38 DATE 4 Date when schedule was updated in ILG database MMYY Format change in schedule during e.g. December 2022 gives entry in DATE with "2212"
39 FDATE 6 Date of START of Transmission DDMMYY format  
40 TDATE 6 Date of STOP of Transmission DDMMYY format  
41 REMARKS 16 Remarks further details
-if not weekly
-notes on observations
-additional information		  
42 STATUS 1 Status of Transmission gives the value of data entry C = confirmed
I = inactive
N = not confirmed
X = Info Data (additional language / dialect information set)
43 MOD 5 Modulation
First letter HFCC/ITU format followed by ILG Type information		 LINK FOR DETAILS D = analog (AM)
N = digital (DRM)
T =  Single Side Band
FOLLOWED BY
AM: Amplitude Modulation
DIG: Digital (various)
DRM:Digital Radio Mondiale
ISB: Independent Side Band
LSB: Lower Side Band
USB: Upper Side Band
44 CLST 2 Transmission Type Field under construction BC: Broadcasting
F: Fixed Station
45 FREEUSE 6 Designator of Modulation   some examples
A3E: Sound (broadcasting)
D7W: DRM
A1A: Morse
F1B: Telex
F3C: Fax
J3E: Voice
J7D: Digital
46 LOC 3 Abbreviation of the Location LINK FOR DETAILS  
47 BRC 3 Broadcaster  LINK FOR DETAILS  
48 FMO 3 the frequency managemnet organisation according to HFCC / ABU / ASBU / ITU LINK FOR DETAILS
 
 
 
49 INFO 11 the INFO field for further information information / name of the season  
50 AFRQ 5
numeric
Antenna Design Frequency of the used antenna:
given in kHz (kiloHertz)
  data content processed by special ILG antenna tools according to technical transmitter site documents
51 MONITORING 15 Matrix of the Year in Month order months by number without a blanc 1: January...
12: December
e.g. a full year looks like this:
123456789101112
and November-February:
12.........101112
52 NOTES 30 Additional Information, Modulation Type LINK FOR SIGNAL IDENTIFICATION AND DETAILS some popular examples used for Utility transmissions:
ALE MIL-STD 188-110A
ALE MIL-STD 188-141A
ARQ 100Bd/500
CCIR 493-4/100Bd/170
DSC FSK 100Bd/170
FSK 50Bd/200...500
HFDL ARINC 1800Bd
LINK-11 MIL-STD 6011
MFSK-8 THALES S-3000
MPSK-12 AT3004D (M5)
PACTOR-1 100Bd/200
PACTOR-2 100Bd/200
PACTOR-3
QPSK/***Bd/***
QPSK-63
SAAB GRINTEC MHF-50
SITOR-B 100Bd/170
STANAG 4481 75Bd/850
STANAG 4285/300...1200L
STANAG 4538/FLSU
T-206/50Bd/500
T-600/50Bd/200...250
WFAX 120/576
53 CALL 50 Call Sign BROADCASTING:
Calls for broadcasting only in use within the USA
UTILITY:
station identification: transmitter sites, ships, mobile units		 UTILITY:
- full call sign
-call sign sets in use
- part of call sign with wildcard ( "*" ) for network or variable call signs
54 MDATE 6 Monitoring Date DDMMYY Format with day, year, month this information verifies that station is/was really on air
made by daily bandscans		 e.g. 101222 means monitored on December 10th 2022
55 SDATE 6 Schedule Date
DDMMYY Format with day, year, month		 this informations for broadcasting stations gives when frequency schedule was made or when HFCC upload was made change in broadcasting schedule during e.g. December 10th 2022 gives entry in DATE with "101222" and all entries of the season of this FMO will be updated with this new date
56 REQ 5 Data Set Number   not in use at the moment
57 G00 2  UTC-Graphic: 0000-0100 hr data field for filter function (set "G00" <> ". ")  
58 G01 2  UTC-Graphic: 0100-0200 hr data field for filter function (set "G01" <> ". ")  
59 G02 2  UTC-Graphic: 0200-0300 hr data field for filter function (set "G02" <> ". ")  
60 G03 2  UTC-Graphic: 0300-0400 hr data field for filter function (set "G03" <> ". ")  
61 G04 2  UTC-Graphic: 0400-0500 hr data field for filter function (set "G04" <> ". ")  
62 G05 2  UTC-Graphic: 0500-0600 hr data field for filter function (set "G05" <> ". ")  
63 G06 2  UTC-Graphic: 0600-0700 hr data field for filter function (set "G06" <> ". ")  
64 G07 2  UTC-Graphic: 0700-0800 hr data field for filter function (set "G07" <> ". ")  
65 G08 2  UTC-Graphic: 0800-0900 hr data field for filter function (set "G08" <> ". ")  
66 G09 2  UTC-Graphic: 0900-1000 hr data field for filter function (set "G09" <> ". ")  
67 G10 2  UTC-Graphic: 1000-1100 hr data field for filter function (set "G10" <> ". ")  
68 G11 2  UTC-Graphic: 1100-1200 hr data field for filter function (set "G11" <> ". ")  
69 G12 2  UTC-Graphic: 1200-1300 hr data field for filter function (set "G12" <> ". ")  
70 G13 2  UTC-Graphic: 1300-1400 hr data field for filter function (set "G13" <> ". ")  
71 G14 2  UTC-Graphic: 1400-1500 hr data field for filter function (set "G14" <> ". ")  
72 G15 2  UTC-Graphic: 1500-1600 hr data field for filter function (set "G15" <> ". ")  
73 G16 2  UTC-Graphic: 1600-1700 hr data field for filter function (set "G16" <> ". ")  
74 G17 2  UTC-Graphic: 1700-1800 hr data field for filter function (set "G17" <> ". ")  
75 G18 2  UTC-Graphic: 1800-1900 hr data field for filter function (set "G18" <> ". ")  
76 G19 2  UTC-Graphic: 1900-2000 hr data field for filter function (set "G19" <> ". ")  
77 G20 2  UTC-Graphic: 2000-2100 hr data field for filter function (set "G20" <> ". ")  
78 G21 2  UTC-Graphic: 2100-2200 hr data field for filter function (set "G21" <> ". ")  
79 G22 2  UTC-Graphic: 2200-2300 hr data field for filter function (set "G22" <> ". ")  
80 G23 2  UTC-Graphic: 2300-2400 hr data field for filter function (set "G23" <> ". ")  
81 GC 24  Geographic Coordinates with Latutude, Longitude Calculated Values - based on Degrees Latitude and Longitude to seven decimal places  content is compatible to Google Earth and Google Maps (Brand Mark by Google LLC)
    Size
 567		      

All files are including 1535 "Separator Lines" and the data field of GRAPHIC (Graphical Diagram) looks like this:
00##########06##########12##########18##### 6100
Other fields are filled with "#####". This should look like a black line to separate optically the 5 kHz steps
within the broadcasting bands and plus/minus 100 khz. ALso in use for 1 MHz steps.
If frequency allocations are changing also such lines are included giving details in the NOTES data field.


ILG data entries and information are based on old and current monitoring experiences made over the last 40 years...
 
Exclusive ILG data fields are NA,CA,SA,EU,AF,ME,AS,AU,PA since 1989 and the usage is exclusively only allowed to use by ILG Database and not by any other software
 
 
 Copyright by ILG Software / Bernd Friedewald (DK9FI)