HF0YL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HF0YL, decoded by SO8OO in southeastern Poland. 113 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-02.
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 113 FT8 messages attributed to HF0YL as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 60 m (42%). Most decodes (90%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-02 17:18 UTC
Observed FT8 message patterns
- Attributed sample
- 113 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -16 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 78.
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 HF0YL in decoded directed-looking exchanges:
Most frequent locator attributed to HF0YL
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
- JO81 · 46 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 379 km (approx.)
- Last such locator decoded
- 2026-09-02 17:17 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 | HF0YL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-02 17:17 | 40m | -4 / - | F1LPT/P | - / -10 | 2 | ✓ Closing fragment |
| 09-02 17:14 | 40m | -3 / -6 | LZ123RF | -10 / - | 6 | Partial capture |
| 07-21 17:12 | 40m | -15 / - | PE50SCOUT | - / -16 | 2 | Partial capture |
| 07-08 16:53 | 40m | -21 / - | <...> | - / -5 | 2 | Partial capture |
| 07-08 16:35 | 40m | -19 / -1 | <...> | -1 / +2 | 2 | Partial capture |
| 07-08 16:26 | 40m | -14 / - | PA0MUS | - / -6 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165445 -16 1479 YR50NADIA HF0YL JO81 165615 -21 1479 SA3KUD HF0YL JO81 171245 -12 1307 PE50SCOUT HF0YL JO81 (x2) 075200 -22 1608 DF0WH HF0YL 73 171445 +1 1872 LZ123RF HF0YL JO81 (x5) 171715 +4 1873 F1LPT HF0YL JO81 171745 -7 1872 F1LPT/P HF0YL R-10 (x2) 171830 -10 1562 HF0YL LZ123RF -06 171900 -12 1872 HF0YL DL6BCZ JO43
UTC dB Audio Message 163900 -1 1711 HF0YL <...> -11 173130 +5 2666 HF0YL 9A170NT +04 173530 -5 927 HF0YL YO1BRANCUSI -03
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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