YD9HLF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YD9HLF, 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 2026-09-13.
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 YD9HLF 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 YD9HLF in decoded directed-looking exchanges:
Most frequent locator attributed to YD9HLF
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
- OI81
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 11,102 km (approx.)
- Last such locator decoded
- 2026-09-13 17:21 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 | YD9HLF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 17:49 | 80m | - / - | PA3DUU | +3 / - | 5 | Partial capture |
| 09-17 17:45 | 80m | - / - | ON6AA | +7 / - | 3 | Partial capture |
| 09-17 17:44 | 80m | - / - | PA3DUU | 0 / - | 3 | Partial capture |
| 09-17 16:36 | 80m | - / -10 | SV2JAO | +2 / - | 2 | Partial capture |
| 09-13 17:23 | 40m | - / - | G3RTE | +8 / - | 2 | Partial capture |
| 09-13 17:23 | 40m | - / - | RV6AVU | +4 / - | 3 | Partial capture |
| 09-13 17:22 | 40m | - / - | YO2LLL | +2 / - | 4 | Partial capture |
| 09-13 17:21 | 40m | -10 / - | HB0WR | - / -19 | 3 | ✓ Closing fragment |
| 09-03 18:23 | 40m | - / -17 | EX7CQ | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 163630 +4 1759 YD9HLF SV2JAO -10 (x2) 174430 -3 476 YD9HLF PA3DUU JO21 (x2) 174500 +7 2405 YD9HLF ON6AA JO11 174530 +1 384 YD9HLF PA3DUU JO21 174530 +6 2405 YD9HLF ON6AA JO11 (x2) 174900 +4 2526 YD9HLF PA3DUU JO21 (x5) 175230 +5 739 YD9HLF ON6AA JO11 (x2)
UTC dB Audio Message 182330 -9 1735 YD9HLF EX7CQ -17 (x2) 172115 -11 1937 HB0WR YD9HLF OI81 (x2) 172200 +4 1802 YD9HLF YO2LLL KN05 172215 -7 1938 HB0WR YD9HLF 73 172230 +3 1802 YD9HLF YO2LLL KN05 (x2) 172300 +4 1938 YD9HLF RV6AVU KN94 172300 +3 2450 YD9HLF G3RTE IO91 172330 -1 1802 YD9HLF YO2LLL KN05 172330 +12 2450 YD9HLF G3RTE IO91 172400 +4 1921 YD9HLF RV6AVU KN94 (x2)
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