DO1HEL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO1HEL, decoded by SO8OO in southeastern Poland. 165 FT8 messages attributed to this token as transmitter, on 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-11.
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 165 FT8 messages attributed to DO1HEL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 165 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -12 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 70, strong (≥ -8 dB) 92.
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 DO1HEL in decoded directed-looking exchanges:
Most frequent locator attributed to DO1HEL
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
- JO50 · 150 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 770 km (approx.)
- Last such locator decoded
- 2026-09-11 18:50 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 | DO1HEL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 18:38 | 80m | -10 / -13 | GW4HZA | -15 / -24 | 21 | Partial capture |
| 09-11 18:30 | 80m | - / -7 | PA3RO | -9 / - | 3 | Partial capture |
| 09-11 18:27 | 80m | -8 / -4 | OE9HGV | -13 / +5 | 3 | ✓ Full exchange observed |
| 09-11 18:23 | 80m | -10 / - | SP100PKP | - / - | 2 | Partial capture |
| 07-17 19:44 | 80m | -3 / - | IQ0AK | - / - | 5 | Partial capture |
| 07-17 19:43 | 80m | -2 / - | RN3DDW/P | - / - | 2 | Partial capture |
| 07-17 19:42 | 80m | -3 / -21 | F5RRS | -4 / - | 3 | ✓ Closing observed |
| 07-17 19:41 | 80m | -2 / -8 | DO9KB | +1 / +6 | 3 | Partial capture |
| 07-17 19:38 | 80m | -5 / -11 | OM8GT | +18 / +6 | 7 | ✓ Full exchange observed |
| 07-17 19:37 | 80m | -5 / - | IQ0AAI | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184230 -13 311 DO1HEL GW4HZA -13 184245 -6 1005 GW4HZA DO1HEL JO50 184300 -18 311 DO1HEL GW4HZA -19 184315 -6 1005 GW4HZA DO1HEL JO50 (x2) 184400 -13 311 DO1HEL GW4HZA -19 184415 -8 1005 GW4HZA DO1HEL R-24 (x8) 185015 -12 1005 9A/FR1JB DO1HEL JO50
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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