G4YLJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO83

Receiver-side FT8 activity involving G4YLJ, decoded by SO8OO in southeastern Poland. 7,166 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 79 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-02.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 7,166 FT8 messages attributed to G4YLJ as the transmitting token by decoded message structure across 79 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 40 m (1%) and 80 m (0%). Most decodes (65%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

7,166
Messages attributed
79
UTC dates decoded
818
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 16 40m · 39 20m · 7,111
First attributed message: 2026-06-06
Last attributed message: 2026-09-02 02:41 UTC

Observed FT8 message patterns

Attributed sample
7,166 messages
Active dates
79 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,774, moderate (-15 to -9 dB) 2,289, strong (≥ -8 dB) 3,103.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with G4YLJ in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to G4YLJ

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
IO83 · 5,338 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,744 km (approx.)
Last such locator decoded
2026-09-02 02:41 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandG4YLJ S/NCounterpartCounterpart S/NMsgsCapture
09-08 03:54 40m - / -11 CR7BRV -4 / - 2 ✓ Closing fragment
09-02 02:23 40m - / -15 IZ8PPI -16 / - 2 Partial capture
09-02 01:42 40m - / -22 EA1AOC -9 / - 5 ✓ Closing fragment
08-31 20:10 20m - / - IU3QRP -15 / - 4 Partial capture
08-31 18:58 20m - / - DK9AM -6 / - 4 Partial capture
08-31 18:35 20m -8 / - <...> - / - 9 Partial capture
08-31 13:24 20m -14 / - IV3KZF - / +8 2 ✓ Closing fragment
08-31 11:07 20m - / - F4HSB -9 / - 2 Partial capture
08-31 10:48 20m -12 / - CT1EDG - / - 2 Partial capture
08-31 10:41 20m -8 / -13 CT1EDG -9 / - 6 Partial capture
08-31 08:12 20m - / - F1IQH +9 / - 3 Partial capture
08-30 17:02 20m -11 / - OH1OCA - / -15 2 Partial capture
08-30 15:51 20m - / - IU3VTV -12 / - 3 Partial capture
08-30 07:46 20m - / - OK2CNI -20 / - 2 Partial capture
08-29 16:45 20m - / -9 EA5IXH -12 / - 2 Partial capture
08-29 13:29 20m - / - HB9IUI -9 / - 3 Partial capture
08-29 08:22 20m - / - SV5BYP -6 / - 5 Partial capture
08-28 21:11 20m - / -4 AA3B +6 / - 3 ✓ Closing fragment
08-28 19:36 20m -5 / - DG9MAQ - / -18 31 Partial capture
08-28 12:14 20m -11 / - SP3DT - / -19 3 Partial capture
08-28 11:49 20m - / - EA2EED -6 / - 2 ✓ Closing fragment
08-28 10:57 10m - / -10 F4FSY -20 / - 2 Partial capture
08-28 06:40 20m - / -15 DD8AH -15 / - 3 ✓ Closing fragment
08-28 06:37 20m - / - F1IQH -11 / - 3 Partial capture
08-27 19:55 60m - / -8 F1IQH -14 / - 4 Partial capture
08-27 19:50 20m -17 / -8 F1IQH -1 / -17 7 Partial capture
08-27 19:32 20m -10 / - EA8DGI - / - 4 Partial capture
08-27 19:29 20m -18 / - EA8DGI - / - 2 Partial capture
08-27 19:24 20m - / -12 UA3SNB +6 / - 3 Partial capture
08-27 18:49 20m - / - R4FDK -2 / - 4 Partial capture
08-26 20:57 20m -8 / - IW2HWN - / - 6 Partial capture
08-26 20:50 20m -13 / -10 IW2HWN -4 / - 5 Partial capture
08-26 20:17 20m -12 / - JI1OYZ - / -18 2 Partial capture
08-26 20:03 20m - / -10 R6HD 0 / - 3 ✓ Closing fragment
08-26 19:25 20m -15 / - IZ5FSO - / - 15 Partial capture
08-26 19:13 20m -9 / - IZ5FSO - / - 10 Partial capture
08-26 19:02 20m -16 / - IZ5FSO - / - 3 Partial capture
08-26 17:16 20m -13 / - IZ5FSO - / - 3 Partial capture
08-26 17:10 20m -13 / - IZ5FSO - / - 3 Partial capture
08-26 17:05 20m -20 / - IZ5FSO - / - 3 Partial capture
08-26 16:44 20m - / -20 IZ5FSO -4 / - 3 Partial capture
08-26 15:47 20m - / -20 F4SHP -9 / - 2 Partial capture
08-26 15:39 20m -16 / +1 RI1FJL -13 / -19 3 Partial capture
08-26 15:38 20m -12 / -2 IZ2ZNM -16 / -17 5 ✓ Full exchange observed
08-26 14:20 20m -12 / - EN35UKR - / -14 8 Partial capture
08-26 14:13 20m -18 / - OK1USU - / -2 2 Partial capture
08-26 12:48 20m -6 / - IZ5FSO - / -12 2 Partial capture
08-26 12:13 20m - / - F6KDL -18 / - 3 Partial capture
08-26 11:59 20m -21 / - SA0WAE -19 / -7 8 Partial capture
08-26 11:44 20m -15 / - KJ7PZV - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
023200 -15 1257  CQ G4YLJ IO83 (x12)
035445  +0  990  G4YLJ CR7BRV -11 (x2)
083415  -7 1344  G4YLJ HA1ZW JN86
20m 
UTC    dB Audio  Message
201115 -18 1403  G4YLJ IU3QRP JN66 (x2)
201600  -4 1296  CQ G4YLJ IO83 (x2)
201715 -16 1402  G4YLJ IU3QRP JN66
201800 -10 1296  CQ G4YLJ IO83 (x10)
10m 
UTC    dB Audio  Message
100115  -8 1314  G4YLJ IU5NWT -18 (x2)
155700 -10 1517  G4YLJ F4FSY -05 (x13)
60m 
UTC    dB Audio  Message
195515 -13 1252  G4YLJ F1IQH R-08 (x4)
80m 
UTC    dB Audio  Message
022415  -3 1957  K2K G4YLJ -16 (x2)
022545  -1 1222  CQ G4YLJ IO83 (x2)
022630  -1  875  G4YLJ YL3AVN KO17
022630 -13 1701  G4YLJ MM0HVU +00
022645  -2 1221  YL3AVN G4YLJ -14
022700  +2  875  G4YLJ YL3AVN R+07
022715  -5 1221  YL3AVN G4YLJ RR73
022730  +0  875  G4YLJ YL3AVN 73
022815  -9 1221  MM0HVU G4YLJ R+02 (x3)
022930 -15 1701  G4YLJ MM0HVU RR73
022945 -18 1221  MM0HVU G4YLJ 73

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee