FLASH UPDATE (HFCC / WPLOT):
Flash-A25: June 19th (2120 UTC) FLASH-B25: June 19th (2120 UTC)
Quick UPDATE (Text/dBASE):
QUICK-A25: June 19th (2120 UTC) QUICK-B25: June 19th (2120 UTC)
New Reference Data for WPLOT software available on June 22nd
LATEST REGULAR WEEKLY UPDATES:
A25: June 15th (2115 UTC) B25: May 18th (2145 UTC)
Latest Monitoring Statistics of January 9th 2025 Facts that confirm the High Quality
Abbreviations used in ILG Database
ILG Special Abbreviations of the various Data Fields
NOTES Data Field
----------------------------------------------------------
BROADCASTING STATIONS:
other data given as listed by WPLOT users
..........................................................
DOUBLE
one transmission with 1-3 requirements by different FMOs, only one transmission on air
EMERGENCY KEEP CLEAR
entries of "International Disaster Radio" (RDR)
FICTION
station/site closed shortwave
FICTION NONSENSE
antennas/transmitters removed or FMO/station has no access to this site, can be called simply as FAKE
HFCC WITH FAKE DATA
fake transmitter site in HFCC data base, correct in ILG
IRREGULAR
transmission not available on a daily basis due to e.g. transmitter problems
JAMMING ...
jamming signal (word "Jamming" plus target station) causing serious disturbance within target area to avoid reception of un-wanted broadcast.
Noise sound, pulse sound or DRM signals available
UNOFFICIALLY
requirement by HFCC member who will not have his data in HFCC list
----------------------------------------------------------
UTILITY STATIONS (Non-Broadcasting Stations):
within official broadcasting bands the following monitored illegal signals causing problems:
ALE, CODE, FSK, MORSE, MPSK-12, STANAG 4481, STANAG 4285, T-206, T-600
within the "old" extended bands all following signals listed below are available and monitored
Frequency Range:
5900-5950, 7300-7350, 9400-9500, 11600-11650, 12050-12100, 13570-13600, 13800-13870, 15600-15800, 17480-17550, 18900-19020 khz
..........................................................
ALE MIL-STD
short time pulse transmission causing disturbance to broadcasting signals
ARQ ***Bd/
Telex transmission causing serious disturbance to broadcasting signals
BEACON
morse letter identification transmission causing disturbance to broadcasting signals
CCIR 493-4/***Bd
Telex transmission causing serious disturbance to broadcasting signals
CODE ...
short time voice transmission in USB/LSB causing disturbance to broadcasting signals
FSK **Bd/...
Telex transmission causing serious disturbance to broadcasting signals
HFDL ...
pulse type transmission causing serious disturbance to broadcasting signals
LDOC
voice transmission in USB causing disturbance to broadcasting signals
LINK-11
pulse type transmission causing serious disturbance to broadcasting signals
METEO ... / MARINE ...
voice transmission in USB causing disturbance to broadcasting signals
MFSK ...
digital transmission bandwidth causing serious disturbance to broadcasting signals
MORSE
transmission causing disturbance to broadcasting signals
MPSK-12 ...
digital transmission with 3.3khz bandwidth causing serious disturbance to broadcasting signals
NAVAREA
voice transmission in USB causing disturbance to broadcasting signals
OVER-HORIZON-RADAR
short time high peak digital transmission with up-to 50 khz bandwidth causing extremely serious disturbance to broadcasting signals.
Such signals can be not listed in ILG because these tranmissions are on air for 1-2 hours and every day on a new frequency.
Signals are comming mainly from Cyprus, Iran, Russia and they do not care on-air broadcasting stations. A few are comming from Australia and China.
PACTOR ...
Telex transmission causing serious disturbance to broadcasting signals
RDARA
voice transmission in USB causing disturbance to broadcasting signals
SITOR ...
Telex transmission causing serious disturbance to broadcasting signals
STANAG 4285 ...
digital transmission with 3.6khz bandwidth causing serious disturbance to broadcasting signals
STANAG 4481 **Bd...
Telex transmission causing serious disturbance to broadcasting signals
TIME SIGNAL
time sign transmission causing disturbance to broadcasting signals
T-206/**Bd/...
Telex transmission causing serious disturbance to broadcasting signals
T-600/**Bd/...
Telex transmission causing serious disturbance to broadcasting signals
VOLMET
voice transmission in USB causing disturbance to broadcasting signals
WFAX
data transmission causing serious disturbance to broadcasting signals
AZI (Azimuth) Data Field
1 - 360 degree
0 = non direction
ATTENTION: HFCC gives 0 or 1 for 360 degree north (wrong in many cases in HFCC database)
GRAPHIC Diagram Data Field
Capital Letters: External / International Service
Small Letters: Home / Local Service
1 => Sunday ... 7: Saturday
# => not daily
$ => Monday-Friday
@ => Monday-Saturday
= => Saturday/Sunday
? => inactive
- => standby (alternative)
| => DRM Broadcasts
! is given at 6, 12 and 18 hours if position is un-used
New additional Abbreviations from September 2015
~ => Spurious, Intermodulation or Harmonic Signals
/ => digital military transmissions (J7D), e.g. STANAG 4285, MPSK 12,...New additional Abbreviations from September 2015
~ => Spurious, Intermodulation or Harmonic Signals
8 => Over Horizon Radar (P0N)
9 => Time Signal Transmission (H3E)
+ => Telex / RTTY / FSK (F1B), e.g STANAG 4481, CIS-75, T-206, T-600, SITOR...
: => ALE Transmission (J7D)
% => Morse Transmission (A1A)
> => FAX Transmission (F3C)
^ => Voice Transmission (J3E)
W => WarmUp (TuneUP) or WarmEnd
LANGUAGE Data Field
For the main Languages of the World the first Letter is used:
A = Arabic
B = Bulgarian
C = Mandarin
D = German
E = English
F = French
G = Greek
H = Hindi (Hindi replaced by Hungarian from March 2011)
I = Italian
J = Japanese
K = Korean
L = Lithuanian
M = Mongolian
N = Norwegian
O = Polish
P = Portuguese
Q = Quechua
R = Russian
S = Spanish
T = Turkish
U = Urdu
V = Vietnamese
W = ...,
X = Mixed Languages
Y = Yiddish
Z = Various
REMARKS Data Field
AZI: 000/360 or 090/270 (dipole antenna)
A-Direction or
B-Direction: one transmitter with 2x different beams (azimuth) and 50% power for each direction
DRM: for inforamtion only
Feeder: special service
Fiction: fake requirement
INFO DATA: additional detailed language broadcasts entries
Irregular: not regular on air
Jamming: various types of modulation to suppress rection in target withname of station to be jammed
monthly: no weely bc.
Pirate: illlegal operation
Planning: future operation
Ramadan: during Ramadan
Reduced Carrier: modulation type
Skip Freq.: nearly daily change of used frequency
Special Event: irregular sports or holiday bc.
Spurs: Spurs or Harmonic with source frequency
T-T: if days are different in target area America, Asia or Pacific in data field REMARKS "T-T" (Target Time) local dates are given, e.g. "T-T:Mon-Fri" if UTC days are "Tue-Sat"
Special Event: broadcast of special event, sports or weather warnings,...
Test: test transmission
tx-error: transmitter problem or transmission on wrong frequency
Unident.: unlisted un-identified transmission incl. RTTY/Telex/Spy bc.
USB/SSB/LSB: Modulation
Vary.Freq.: variable frequency
"...": Various Program or Service Names/Infos
"1-5. Day" = not weekly
STATUS Data Field
C = confirmed
I = inactive
N = not confirmed
X = Info Data (X is not imported in WPLOTF)
MOD (MODULATION) Data Field
D = analog (AM)
N = digital (DRM)
S = single side band
T = reduced carrier
BRC (BROADCASTER) Data Field
XAF Air Force Radio
XAP Airport Radio
XBC Propagation Beacon
XCO Communication Net
XCH COTHEN Net
XCN Coastal/Naval Radio
XDC Distress Radio
XDI Diplomatic Net
XGL Global Link Net
XHF HFDL ARINC
XLD LDOC
XME Meteo Radio
XMI Military / Army Radio
XMW MWARA
XNA Navy Radio
XOH Over Horizon Radar
XPI Pirate Radio
XPS Pactor Sailmail
XRD RDARA
XSC USAF SCOPE Command
XSP Spy Radio
XST STATCOM HF Net
XTS Time Signal Radio
XVO VOLMET Radio
FMO (Frequency Management Organization) Data Field
see ITU List and ILG/ILGRadio gives further codes:
CBS Radio Taiwan Int.
CHN Chinese Government
AER Aeronautical Radio
GOV Government Radio
HAM Amateur Radio
MAR Maritime Radio
MIL Military Radio
ORG Organisations
PRV Private Radio
LOC (LOCATION) Data Field
Special usage of ITU abbreviations for unknown sites:
SP0: worlwide
SP1: North America
SP2: Central America/Caribbean
SP3: South America
SP4: Europe
SP5: Africa
SP6: Middle East
SP7: Asia
SP8: Australia
SP9: Pacific
SP2: Central America/Caribbean
SP3: South America
SP4: Europe
SP5: Africa
SP6: Middle East
SP7: Asia
SP8: Australia
SP9: Pacific
LANGUAGE Data Field
ULTILITY transmissions are listed here with the word "DATA:..." followed by the type of broadcast:
ULTILITY transmissions are listed here with the word "DATA:..." followed by the type of broadcast:
CODES (Spy Radio),
DATA (Data Transfer),
EMAIL (E-Mail Transfer),
FAX (Telefax),
METEO (Weather Info),
MORSE (CW),
RADAR (Over-Horizon-Radar)
TELEX (Telegraphy),
TIMES (Time Signals),
VOICE (Traffic/Information)
DATA (Data Transfer),
EMAIL (E-Mail Transfer),
FAX (Telefax),
METEO (Weather Info),
MORSE (CW),
RADAR (Over-Horizon-Radar)
TELEX (Telegraphy),
TIMES (Time Signals),
VOICE (Traffic/Information)
"WarmUp"
special TuneUp procedure with silent carrier (SC), music/programme (PR), interval signal or jingle (IS) or 1000 Hz test tone (TT)
"WarmEnd"
transmitter is still on air (see also WarmUp details)
transmitter is still on air (see also WarmUp details)
Exclusive ILG data info and wording !
Jamming Description:
Noise Sound, Firedrake (endles Chinese Music tape), Pulse Sound or Relay of Home Service (CNR) or DRM Signal with Home Service Programme