DF4WN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF4WN, decoded by SO8OO in southeastern Poland. 70 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-08.
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 70 FT8 messages attributed to DF4WN 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 (66%), followed by 10 m (20%) and 40 m (14%). Several six-hour UTC windows tied for the largest share (60%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-08 15:51 UTC
Observed FT8 message patterns
- Attributed sample
- 70 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 26.
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 DF4WN 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 DF4WN
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
- JN39 · 57 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,063 km (approx.)
- Last such locator decoded
- 2026-09-08 15:48 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 | DF4WN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 15:47 | 40m | +3 / - | G4KCP | - / - | 4 | Partial capture |
| 09-04 08:41 | 40m | -13 / +8 | DK3ME | -14 / 0 | 6 | ✓ Full exchange observed |
| 09-04 08:39 | 40m | -14 / -9 | PA3DKZ | -21 / -6 | 4 | Partial capture |
| 08-31 14:58 | 20m | -2 / - | RI1FJL | - / - | 10 | Partial capture |
| 08-31 14:56 | 20m | -9 / - | AP2AM | 0 / -24 | 2 | ✓ Closing observed |
| 08-31 14:49 | 20m | -4 / -18 | AP2AM | 0 / - | 9 | Partial capture |
| 08-06 08:23 | 20m | -18 / - | OH0ERF | - / - | 5 | Partial capture |
| 08-06 08:17 | 20m | -15 / - | OH0ERF | - / - | 5 | Partial capture |
| 08-06 08:11 | 20m | -22 / - | OH0ERF | - / - | 6 | Partial capture |
| 08-02 06:39 | 20m | -18 / - | TI5RR | - / - | 5 | Partial capture |
| 07-02 13:47 | 20m | -19 / - | 9M8WWA | - / - | 3 | Partial capture |
| 07-02 13:41 | 20m | -16 / - | 9M8WWA | - / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 083930 -18 1375 PA3DKZ DF4WN JN39 (x2) 084015 -21 1375 DF4WN PA3DKZ -09 084030 -9 1374 PA3DKZ DF4WN R-06 084115 -18 1375 DF4WN DK3ME JO50 (x3) 084230 -14 1375 DK3ME DF4WN R+00 084245 -15 1376 DF4WN DK3ME RR73 084300 -12 1374 DK3ME DF4WN 73 154715 +0 630 G4KCP DF4WN JN39 (x4) 155145 -7 1549 G8WDZ DF4WN 73
UTC dB Audio Message 145300 -8 1430 AP2AM DF4WN JN39 145315 +1 3012 DF4WN AP2AM -18 (x2) 145600 -9 1431 AP2AM DF4WN R-24 145645 +0 3010 DF4WN AP2AM RR73 145815 -9 1431 RI1FJL DF4WN JN39 (x10)
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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