WT9U — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving WT9U, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-26.
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 11 FT8 messages attributed to WT9U as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 80 m (45%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-26 01:36 UTC
Observed FT8 message patterns
- Attributed sample
- 11 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -13 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 2.
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 WT9U in decoded directed-looking exchanges:
Most frequent locator attributed to WT9U
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
- EN71 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,607 km (approx.)
- Last such locator decoded
- 2026-08-26 01:34 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 | WT9U S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 00:39 | 40m | - / - | F4BYA | +8 / - | 3 | Partial capture |
| 08-27 00:34 | 40m | - / -16 | 9K2YM | -2 / - | 2 | ✓ Closing fragment |
| 08-26 01:33 | 20m | -10 / - | TJ1GD | - / -6 | 6 | ✓ Closing fragment |
| 08-26 01:25 | 80m | -16 / - | VE3LWY | - / +8 | 2 | ✓ Closing fragment |
| 08-26 01:24 | 80m | - / - | 4L7T | -6 / - | 5 | Partial capture |
| 08-26 01:21 | 80m | -13 / -11 | TF3VS | -3 / -24 | 8 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 003430 -2 1432 WT9U 9K2YM -16 (x2) 003930 +7 2891 WT9U F4BYA JN19 (x3)
UTC dB Audio Message 013345 -4 884 TJ1GD WT9U EN71 (x6)
UTC dB Audio Message 012145 -5 2057 WT9U TF3VS -11 012200 -14 805 TF3VS WT9U EN71 012215 -3 2058 WT9U TF3VS -07 (x3) 012330 -15 805 TF3VS WT9U R-24 012345 +0 2057 WT9U TF3VS RR73 012400 -11 805 TF3VS WT9U 73 012445 -9 2535 WT9U 4L7T LN21 012500 -18 805 VE3LWY WT9U +08 012515 -2 2535 WT9U 4L7T LN21 012530 -15 805 VE3LWY WT9U RR73 012545 -10 2535 WT9U 4L7T LN21 (x3)
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