GW0DSJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GW0DSJ, decoded by SO8OO in southeastern Poland. 158 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-22.
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 158 FT8 messages attributed to GW0DSJ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -6 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 158 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -13 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 112.
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 GW0DSJ 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 GW0DSJ
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 · 109 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,744 km (approx.)
- Last such locator decoded
- 2026-08-22 18:29 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 | GW0DSJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-22 18:27 | 20m | -6 / - | EW2MS | - / -12 | 2 | ✓ Closing fragment |
| 08-22 18:25 | 20m | -1 / -11 | R6DJR | +1 / -9 | 3 | ✓ Full exchange observed |
| 08-22 18:21 | 20m | 0 / - | XU7O | - / - | 5 | Partial capture |
| 08-08 19:01 | 20m | - / -15 | IK4LZH | -3 / - | 4 | ✓ Closing fragment |
| 07-11 19:41 | 20m | -8 / - | F6BHK | - / -24 | 3 | ✓ Closing fragment |
| 07-11 19:37 | 20m | -14 / +3 | OH9JP | -10 / - | 2 | ✓ Closing observed |
| 07-11 19:31 | 20m | -12 / - | F4MQR | - / -11 | 3 | ✓ Closing fragment |
| 07-11 19:28 | 20m | -4 / - | HZ1TL | - / -17 | 4 | ✓ Closing fragment |
| 07-11 19:20 | 20m | -2 / - | SQ8GMW | - / -6 | 2 | ✓ Closing fragment |
| 07-11 19:17 | 20m | -4 / - | TN8GD | - / - | 2 | ✓ Closing fragment |
| 06-27 19:11 | 20m | -12 / - | ON1JP | - / -1 | 2 | ✓ Closing fragment |
| 06-27 19:01 | 20m | - / -2 | OK1UOZ | -4 / - | 3 | ✓ Closing fragment |
| 06-24 18:47 | 20m | - / -16 | OE5ABL | -5 / - | 10 | Partial capture |
| 06-24 18:46 | 20m | +4 / - | OE3WFA | -2 / - | 3 | ✓ Closing observed |
| 06-24 18:41 | 20m | +1 / +1 | IK4LZH | -6 / - | 8 | ✓ Full exchange observed |
| 06-24 18:36 | 20m | -1 / - | UR5WCS | - / -11 | 3 | ✓ Closing fragment |
| 06-24 18:32 | 20m | -4 / -7 | SQ6PLE | -3 / - | 4 | ✓ Closing observed |
| 06-24 18:26 | 20m | -3 / - | R4PEP | -11 / -14 | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182245 +0 581 XU7O GW0DSJ IO83 (x3) 182415 +9 580 CQ GW0DSJ IO83 182500 +1 578 GW0DSJ R6DJR -11 182515 +0 580 R6DJR GW0DSJ R-09 (x2) 182615 -12 1008 CQ GW0DSJ IO83 (x2) 182715 -8 1008 EW2MS GW0DSJ -12 (x2) 182815 -6 1008 CQ GW0DSJ IO83 (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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