KC3WUK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KC3WUK, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-04.
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 39 FT8 messages attributed to KC3WUK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (28%). Most decodes (100%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-09-04 01:27 UTC
Observed FT8 message patterns
- Attributed sample
- 39 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -21 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 5.
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 KC3WUK in decoded directed-looking exchanges:
Most frequent locator attributed to KC3WUK
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
- FM19 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,310 km (approx.)
- Last such locator decoded
- 2026-09-04 01:19 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 | KC3WUK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-04 01:23 | 40m | -20 / -12 | EB3JT | -2 / -15 | 7 | Partial capture |
| 08-02 12:14 | 20m | - / -16 | PA7Q | -18 / - | 2 | Partial capture |
| 08-02 11:37 | 20m | - / -13 | F5RQQ | +6 / - | 2 | ✓ Closing fragment |
| 07-13 22:53 | 20m | - / -11 | EA7FJW | -17 / - | 2 | Partial capture |
| 07-10 02:34 | 40m | - / -5 | EC3A | -20 / - | 4 | ✓ Closing fragment |
| 07-10 02:28 | 40m | - / -10 | DG1KPC | -10 / - | 2 | ✓ Closing fragment |
| 07-04 02:14 | 80m | - / -12 | CR2WWA | -13 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 023430 -20 1603 KC3WUK EC3A -05 (x3) 004730 +0 717 KC3WUK WA8R RR73 005615 -9 717 W4AQL KC3WUK -18 011945 -20 1730 WW9WTF KC3WUK FM19 012100 -4 1732 KC3WUK EB3JT JN01 012315 -20 1730 EB3JT KC3WUK -15 (x2) 012400 -1 1732 KC3WUK EB3JT R-12 (x3) 012715 -21 1731 EB3JT KC3WUK -15 (x2) 013030 -3 1732 KC3WUK EB3JT R-12
UTC dB Audio Message 235100 -21 1456 KC3WUK HI3WWA RR73 194600 -21 1331 KC3WUK Z62NS -04 225330 -17 1605 KC3WUK EA7FJW -11 (x2) 113730 +5 565 KC3WUK F5RQQ -13 (x2) 120945 -23 1325 KC3WUK PD2WL JO22 121415 -19 1515 KC3WUK PA7Q JO32 (x2)
UTC dB Audio Message 021430 -11 968 KC3WUK CR2WWA -12 (x2)
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