SP5WCK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP5WCK, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-18.
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 13 FT8 messages attributed to SP5WCK 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 (100%). In this small sample, the estimated median decoder S/N was -4 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 13 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -4 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) 4, strong (≥ -8 dB) 8.
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 SP5WCK in decoded directed-looking exchanges:
Most frequent locator attributed to SP5WCK
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
- KO12 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 297 km (approx.)
- Last such locator decoded
- 2026-07-05 08:39 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 | SP5WCK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 19:10 | 20m | - / -1 | M9KTM | +6 / - | 2 | ✓ Closing fragment |
| 08-30 21:14 | 20m | - / -9 | W4DXM | -2 / - | 2 | ✓ Closing fragment |
| 08-30 20:22 | 20m | - / -15 | EA8FJ | -6 / - | 3 | ✓ Closing fragment |
| 08-30 20:20 | 20m | - / -7 | <...> | -10 / - | 2 | ✓ Closing fragment |
| 08-30 19:59 | 20m | - / 0 | OE9HGV | -4 / - | 2 | ✓ Closing fragment |
| 08-30 19:18 | 20m | - / - | G4DBW | +6 / - | 2 | Partial capture |
| 08-30 19:01 | 20m | - / -2 | EA2DR | -8 / - | 2 | ✓ Closing fragment |
| 08-30 18:49 | 20m | - / +7 | GJ6WRI | -7 / - | 2 | ✓ Closing fragment |
| 08-29 18:31 | 20m | - / -9 | AO5FSB | -6 / - | 2 | ✓ Closing fragment |
| 08-29 16:16 | 20m | - / -14 | EA5IXH | -6 / - | 2 | ✓ Closing fragment |
| 08-29 16:13 | 20m | - / -13 | JA3EGF | -1 / - | 2 | ✓ Closing fragment |
| 08-28 20:45 | 20m | - / +2 | HA1BF | -17 / - | 2 | ✓ Closing fragment |
| 08-28 17:40 | 20m | - / -4 | EA1EU | -2 / - | 2 | ✓ Closing fragment |
| 08-28 17:35 | 20m | - / -15 | BG7BMG | -15 / - | 2 | Partial capture |
| 08-28 09:39 | 10m | - / -2 | F4JKY | -11 / - | 2 | ✓ Closing fragment |
| 08-26 20:44 | 20m | - / -19 | KC1EPL | -22 / - | 2 | ✓ Closing fragment |
| 08-26 20:40 | 20m | - / - | DL7RAY | -11 / - | 4 | Partial capture |
| 08-26 20:40 | 20m | - / - | OE8RPK | -7 / - | 3 | Partial capture |
| 08-26 19:56 | 20m | - / -17 | BG7BVI | -7 / - | 2 | ✓ Closing fragment |
| 08-26 19:16 | 20m | - / +1 | M0PBG | +2 / - | 2 | ✓ Closing fragment |
| 08-26 00:38 | 20m | - / -16 | WA4FU | -3 / - | 2 | ✓ Closing fragment |
| 08-24 21:39 | 20m | - / -18 | WA2HIP | -14 / - | 2 | ✓ Closing fragment |
| 08-22 14:02 | 20m | - / -5 | EN35UKR | +10 / - | 2 | ✓ Closing fragment |
| 08-22 13:58 | 20m | - / +1 | UY5AX | +1 / - | 2 | ✓ Closing fragment |
| 08-20 17:16 | 20m | - / -13 | <...> | -6 / - | 2 | Partial capture |
| 08-19 22:31 | 20m | - / -21 | N1EZ | -12 / - | 2 | ✓ Closing fragment |
| 08-16 16:27 | 20m | - / -9 | BG5IOG | -16 / - | 2 | ✓ Closing fragment |
| 08-16 11:37 | 10m | - / -7 | SV2FNT | -12 / - | 2 | ✓ Closing fragment |
| 08-08 19:37 | 20m | - / 0 | IK4RVY | -4 / - | 2 | ✓ Closing fragment |
| 08-02 08:50 | 10m | - / -3 | Z61DX | -6 / - | 2 | ✓ Closing fragment |
| 08-01 10:33 | 10m | - / +2 | SV1CQN | -12 / - | 2 | ✓ Closing fragment |
| 07-18 16:31 | 20m | -15 / -6 | EW1MN | +2 / - | 3 | ✓ Closing observed |
| 07-10 20:21 | 20m | - / -17 | W3FOX | -16 / - | 2 | ✓ Closing fragment |
| 07-10 12:40 | 20m | - / -9 | PD3LKN | -16 / - | 2 | ✓ Closing fragment |
| 07-08 21:02 | 20m | - / -1 | CT1EEX | -6 / - | 2 | ✓ Closing fragment |
| 07-08 20:58 | 20m | - / - | EA8CVR | -19 / - | 2 | ✓ Closing fragment |
| 07-07 20:11 | 20m | - / -5 | DL9KM | -11 / - | 3 | ✓ Closing fragment |
| 07-07 20:07 | 20m | - / -2 | SV5BYP | -2 / - | 4 | ✓ Closing fragment |
| 07-05 08:39 | 20m | -16 / - | SP3DOF | - / - | 2 | ✓ Closing fragment |
| 07-02 20:48 | 20m | - / -7 | TA7LLL | -16 / - | 2 | ✓ Closing fragment |
| 06-28 20:16 | 10m | - / -11 | EA1AA | -2 / - | 2 | ✓ Closing fragment |
| 06-27 13:22 | 10m | - / +6 | R6OP | -10 / - | 2 | ✓ Closing fragment |
| 06-27 11:38 | 10m | - / - | DO1FDK | -12 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 191845 +8 2290 SP5WCK G4DBW JO01 (x2) 195900 -6 672 SP5WCK OE9HGV R+00 (x2) 202000 -12 1616 SP5WCK <...> R-07 (x2) 202230 -6 733 SP5WCK EA8FJ R-15 (x3) 211045 -12 1561 SP5WCK KP4AH 73 211430 +0 1952 SP5WCK W4DXM R-09 (x2) 220830 -16 1872 SP5WCK CE4KM R-06 191045 +7 1224 SP5WCK M9KTM R-01 (x2)
UTC dB Audio Message 113830 -15 2446 SP5WCK DO1FDK JO41 (x3) 132215 -10 1560 SP5WCK R6OP R+06 (x2) 201600 +1 507 SP5WCK EA1AA R-11 (x2) 103330 -12 1810 SP5WCK SV1CQN R+02 (x2) 085045 -7 909 SP5WCK Z61DX -03 (x2) 113715 -14 1419 SP5WCK SV2FNT R-07 (x2) 093915 -9 1009 SP5WCK F4JKY R-02 (x2)
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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