GM4GVJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GM4GVJ, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 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 3 FT8 messages attributed to GM4GVJ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.
Overview
Observed FT8 message patterns
- Attributed sample
- 3 messages
- Active dates
- 1 UTC dates
- S/N summary
- Too few decodes
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with GM4GVJ in decoded directed-looking exchanges:
Most frequent locator attributed to GM4GVJ
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
- IO85
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,769 km (approx.)
- Last such locator decoded
- 2026-09-18 21:03 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 UTC | Band | GM4GVJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 10:33 | 40m | - / -12 | ON1DGN | -21 / - | 2 | Partial capture |
| 09-18 21:03 | 40m | -18 / +2 | DL9DAJ | -6 / +7 | 6 | ✓ Full exchange observed |
| 09-18 21:00 | 40m | - / -13 | F5PBG | -5 / - | 3 | ✓ Closing fragment |
| 09-18 20:51 | 40m | - / -16 | ON1DGN | -9 / - | 3 | Partial capture |
| 09-18 20:50 | 40m | - / -8 | OZ5AGJ | -3 / - | 3 | ✓ Closing fragment |
| 09-18 09:00 | 40m | - / -19 | DK7UY | -11 / - | 5 | ✓ Closing fragment |
| 09-18 08:43 | 40m | - / -7 | PD7BB | -8 / - | 2 | ✓ Closing fragment |
| 09-18 08:36 | 40m | - / -10 | ON1DGN | -22 / - | 2 | Partial capture |
| 09-17 16:30 | 40m | - / -4 | G4DZE | -13 / - | 2 | ✓ Closing fragment |
| 09-17 14:37 | 40m | - / -16 | DK7ZT | -9 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205230 -10 1337 GM4GVJ ON1DGN -16 210030 -7 2037 GM4GVJ F5PBG IN78 (x3) 210300 -10 2035 GM4GVJ DL9DAJ JO31 210315 -21 2035 CQ GM4GVJ IO85 210330 -4 2035 GM4GVJ DL9DAJ JO31 210345 -18 2035 DL9DAJ GM4GVJ +07 210400 -8 2035 GM4GVJ DL9DAJ R+02 210415 -19 2035 DL9DAJ GM4GVJ RRR 210430 -4 2035 GM4GVJ DL9DAJ 73 103330 -21 1487 GM4GVJ ON1DGN -12 (x2) 140415 -11 483 GM4GVJ DK1XAM RR73 124230 -20 1972 GM4GVJ PA7D 73
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