DH8YAU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DH8YAU, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-31 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 29 FT8 messages attributed to DH8YAU as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 20 m (17%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-11 14:52 UTC
Observed FT8 message patterns
- Attributed sample
- 29 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -22 to +2 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 12.
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 DH8YAU in decoded directed-looking exchanges:
Most frequent locator attributed to DH8YAU
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
- JN58 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 799 km (approx.)
- Last such locator decoded
- 2026-08-31 16:47 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 | DH8YAU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 12:18 | 40m | - / - | DK7UY | -10 / - | 2 | Partial capture |
| 09-11 14:52 | 40m | -22 / -7 | SN100PKP | +2 / -7 | 2 | Partial capture |
| 09-11 14:50 | 40m | -20 / - | F5PBG | - / -20 | 3 | ✓ Closing fragment |
| 09-11 14:48 | 40m | - / -10 | SP6FME | -7 / - | 3 | Partial capture |
| 09-11 14:46 | 40m | -20 / -20 | PA3AGN | -15 / -4 | 5 | ✓ Full exchange observed |
| 09-11 14:44 | 40m | -20 / -15 | HG8LXL | -8 / - | 4 | ✓ Closing observed |
| 08-31 16:52 | 40m | - / - | F5PBG | -3 / - | 3 | Partial capture |
| 08-31 16:47 | 40m | -8 / - | ON3URT | - / -10 | 3 | ✓ Closing fragment |
| 08-31 16:45 | 40m | -14 / - | PG9S | - / -5 | 2 | ✓ Closing fragment |
| 08-31 16:41 | 40m | -4 / - | M6XZD | - / - | 4 | Partial capture |
| 08-31 16:41 | 40m | - / - | F5PBG | -7 / - | 3 | Partial capture |
| 08-31 16:40 | 40m | -3 / -15 | G8KHF | -10 / +2 | 5 | ✓ Full exchange observed |
| 08-31 16:38 | 40m | -16 / -1 | HB10GBT | -6 / +9 | 3 | Partial capture |
| 08-31 16:34 | 20m | -5 / - | 9M2DGA | - / - | 5 | Partial capture |
| 07-09 10:12 | 20m | - / -13 | IK4RVY | -18 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 144730 -15 1142 DH8YAU PA3AGN R-20 144745 -20 1473 PA3AGN DH8YAU RR73 144800 -8 1473 DH8YAU SP6FME JO90 144800 -18 1142 DH8YAU PA3AGN 73 144830 -7 1473 DH8YAU SP6FME JO90 (x2) 145045 -20 1438 F5PBG DH8YAU -20 (x3) 145230 +2 1389 DH8YAU SN100PKP -07 145245 -22 1389 SN100PKP DH8YAU R-07 145445 -15 2230 DH8YAU F1UNR RRR 121600 -14 1427 DH8YAU SN100PKP -14 121800 -8 456 DH8YAU DK7UY JO44 (x2)
UTC dB Audio Message 085715 -3 2876 DH8YAU F5URG 73 101215 -16 2075 DH8YAU IK4RVY R-13 (x6) 163145 -1 1690 DH8YAU <...> +01 163430 +3 1184 9M2DGA DH8YAU JN58 (x5)
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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