K3WC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K3WC, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 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 31 FT8 messages attributed to K3WC as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 40 m (29%) and 80 m (16%). Most decodes (100%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-09-13 23:11 UTC
Observed FT8 message patterns
- Attributed sample
- 31 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -15 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 14.
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 K3WC in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to K3WC
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
- FN10 · 18 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,230 km (approx.)
- Last such locator decoded
- 2026-09-13 23:10 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 | K3WC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 23:09 | 40m | -11 / -5 | EX7CQ | -4 / -10 | 7 | ✓ Full exchange observed |
| 09-11 02:07 | 80m | - / - | IZ2AMW | -9 / - | 5 | Partial capture |
| 09-10 02:57 | 80m | -12 / -9 | DK7ZT | +1 / -14 | 6 | Partial capture |
| 09-10 02:57 | 80m | - / - | G8OO | -17 / - | 4 | Partial capture |
| 09-10 02:57 | 80m | - / - | RK6C | -3 / - | 3 | Partial capture |
| 09-10 02:56 | 80m | -16 / - | J38DX | - / -17 | 3 | ✓ Closing fragment |
| 08-19 23:36 | 20m | -3 / - | LY5A | - / -18 | 3 | Partial capture |
| 08-07 01:22 | 40m | -12 / - | D2UY | - / -21 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 012245 -13 2286 D2UY K3WC FN10 (x4) 230915 -10 1951 EX7CQ K3WC FN10 (x3) 231100 -4 1715 K3WC EX7CQ -05 231115 -11 1951 EX7CQ K3WC R-10 231130 -5 1715 K3WC EX7CQ RR73 231145 -10 1951 EX7CQ K3WC 73
UTC dB Audio Message 025815 -18 1312 K3WC G8OO JO02 025815 -1 1112 K3WC DK7ZT -09 025845 -14 1312 K3WC G8OO JO02 025845 -12 2463 K3WC F5SJF JN08 025915 -18 1313 K3WC G8OO JO02 025915 +1 1112 K3WC DK7ZT -09 (x2) 030000 -13 2632 DK7ZT K3WC R-14 (x2) 030145 +16 2442 K3WC UX5UO KO50 020730 -6 1683 K3WC IZ2AMW JN45 (x5)
UTC dB Audio Message 233645 -5 927 LY5A K3WC FN10 (x3)
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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