G4VJL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO81

Receiver-side FT8 activity involving G4VJL, decoded by SO8OO in southeastern Poland. 823 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-18.

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 823 FT8 messages attributed to G4VJL as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (26%) and 80 m (24%). The busiest six-hour window was 17:00-23:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

823
Messages attributed
55
UTC dates decoded
228
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 199 40m · 215 20m · 409
First attributed message: 2026-06-10
Last attributed message: 2026-09-18 22:39 UTC

Observed FT8 message patterns

Attributed sample
823 messages
Active dates
55 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-16.9 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 100, moderate (-15 to -9 dB) 242, strong (≥ -8 dB) 481.

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 G4VJL 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 G4VJL

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
IO81 · 61 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,746 km (approx.)
Last such locator decoded
2026-09-18 22:38 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 UTCBandG4VJL S/NCounterpartCounterpart S/NMsgsCapture
09-18 22:38 40m -11 / -4 9K2WA -15 / -6 4 Partial capture
09-17 21:14 80m -19 / - TF4M - / +5 2 ✓ Closing fragment
09-17 21:03 80m -14 / -9 UR5EDX +12 / +1 5 ✓ Full exchange observed
09-17 21:01 80m - / -11 IQ0AAI -14 / - 2 ✓ Closing fragment
09-14 03:57 80m -14 / -2 OE5DML +10 / -2 5 ✓ Full exchange observed
09-14 03:53 80m - / -14 DO1FFO -3 / - 5 ✓ Closing fragment
09-14 03:50 80m -13 / - HC1BG - / -16 3 Partial capture
09-14 03:22 80m -15 / -4 R3HH -3 / -14 5 ✓ Full exchange observed
09-14 03:21 80m -4 / -20 R1AV -5 / - 4 ✓ Closing observed
09-14 03:18 80m -10 / - K4DBO - / -17 4 Partial capture
09-12 03:10 80m -9 / - HC1BG - / -16 3 Partial capture
09-11 19:29 40m -4 / - BG0FQU - / -25 2 Partial capture
09-11 04:37 80m +1 / - KR4NO - / -24 3 Partial capture
09-09 02:11 80m -7 / +5 DO5HB -12 / +3 5 ✓ Full exchange observed
09-09 02:04 80m -7 / -4 SP6FME +3 / -1 7 ✓ Full exchange observed
09-09 02:00 80m -12 / - DL5DQZ -8 / -3 5 Partial capture
09-09 01:57 80m -11 / -7 DO5HB -16 / - 3 ✓ Closing observed
09-09 01:54 80m -8 / - YV6BXN - / -15 3 Partial capture
09-09 01:48 80m -10 / - YV6BXN - / -15 3 Partial capture
09-09 01:38 80m -6 / -12 RC9WC -7 / -7 6 ✓ Full exchange observed
09-09 01:38 80m 0 / - K1NOX - / -18 2 ✓ Closing fragment
09-09 01:17 80m -9 / - YV6BXN - / -22 2 Partial capture
09-09 01:09 80m -1 / - UN7CL - / -22 7 Partial capture
09-09 01:00 80m -3 / - YV6BXN - / -20 5 Partial capture
09-09 00:56 80m +4 / - UA4FKT - / -2 8 Partial capture
09-09 00:55 80m +2 / - K1NOX - / -15 2 Partial capture
09-09 00:53 80m +1 / - UA4FKT - / -15 2 Partial capture
09-09 00:51 80m +2 / - CT2HEX - / -15 2 Partial capture
09-09 00:51 80m +2 / -14 RC6OU +7 / +3 8 ✓ Full exchange observed
09-09 00:50 80m +2 / +6 SM7/DL5BTE +3 / +8 2 Partial capture
09-08 07:33 40m -14 / - VK2AGS - / -13 2 Partial capture
09-05 18:02 40m +1 / - JA4FKX - / -21 2 Partial capture
09-04 22:17 40m -7 / - BG0FQU - / -18 9 Partial capture
09-04 22:15 40m +2 / - L60RCB - / -14 3 Partial capture
09-03 13:05 10m - / -1 7Q7CT -18 / - 2 ✓ Closing fragment
09-01 23:39 80m +4 / - RI1FJL -14 / -7 6 ✓ Full exchange observed
09-01 23:35 80m -6 / - RI1FJL - / -8 3 Partial capture
08-31 19:39 20m +3 / - VE2IAA - / -14 4 ✓ Closing fragment
08-31 19:33 20m +2 / - WA6KLC - / -25 3 Partial capture
08-31 19:14 80m -12 / - SP9YGD +10 / -4 7 Partial capture
08-31 19:13 80m -19 / - IZ6ERS -3 / - 2 ✓ Closing observed
08-31 19:10 80m -12 / -10 LZ2VQ -13 / - 4 ✓ Closing observed
08-31 18:34 80m -12 / -8 4L7T -11 / -9 2 Partial capture
08-31 17:51 40m -11 / - VK2WW - / -22 3 ✓ Closing fragment
08-31 17:40 20m -4 / - WV7Z - / -18 5 Partial capture
08-31 16:45 20m +2 / - VA7QI - / -11 3 ✓ Closing fragment
08-31 16:35 20m -4 / - BG7BVP - / -20 3 Partial capture
08-31 12:51 20m -14 / - UD8S - / -12 2 Partial capture
08-31 12:48 20m -8 / - UD8S - / -9 2 Partial capture
08-30 22:18 80m -17 / - F4GTB - / -23 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
035800 -14 1440  OE5DML G4VJL -02
035815 +10 1439  G4VJL OE5DML R-02
035830 -13 1439  OE5DML G4VJL RR73
035845 +10 1440  G4VJL OE5DML 73
040230 -13 1441  HC1BG G4VJL -20
210130 -14  701  G4VJL IQ0AAI R-11 (x2)
210330 +14 1560  G4VJL UR5EDX KN78 (x2)
210415 -14  702  UR5EDX G4VJL +01
210430 +12 1557  G4VJL UR5EDX R-09 (x2)
211430 -16 2248  TF4M G4VJL +05 (x2)
045545  +2  749  G4VJL DO3VE JO52
40m 
UTC    dB Audio  Message
073415 -14  737  VK2AGS G4VJL -13
183100  -2 1391  GT3MAN G4VJL RR73
024800 +10  974  D44TWO G4VJL -05
025115  -4  381  G4VJL D44TWO 73
165030 -11 2147  UK7AL G4VJL -25
192045  -4 1148  JA6MWW G4VJL -21
192900  -4 1508  BG0FQU G4VJL -25 (x2)
055545  -2  318  KL7J G4VJL -10
055830  -8  319  G4VJL R1BDX KO59
223815 -11 1795  9K2WA G4VJL IO81 (x2)
223900 -15 1795  G4VJL 9K2WA -04
223915 -10 1795  9K2WA G4VJL R-06
223930  -9 1795  G4VJL RR73; R2FBW <...> -06
10m 
UTC    dB Audio  Message
154830 -12 1470  G4VJL F6FDY JN33 (x3)
081600  -5 1808  G4VJL F4FSY +04 (x2)
104115  -6 2071  G4VJL HB9HSJ R-12 (x2)
081730 -23 1631  G4VJL ON8PB R-06
130500 -17 1589  G4VJL 7Q7CT R-01 (x2)
20m 
UTC    dB Audio  Message
164645  -1  345  VA7QI G4VJL RR73
165300 -17 1678  BG5JGG G4VJL -22
174000  -7  923  WV7Z G4VJL -18 (x5)
193030 +14 2568  WA6KLC G4VJL -20 (x4)
193915  +4 2535  VE2IAA G4VJL -14 (x4)

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.

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