EA8CZK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA8CZK, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-21 and 2026-09-20.
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 26 FT8 messages attributed to EA8CZK as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 80 m (15%) and 40 m (4%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-20 00:17 UTC
Observed FT8 message patterns
- Attributed sample
- 26 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -23 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 9.
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 EA8CZK in decoded directed-looking exchanges:
Most frequent locator attributed to EA8CZK
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
- IL18 · 25 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 4,035 km (approx.)
- Last such locator decoded
- 2026-09-20 00:17 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 | EA8CZK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 00:17 | 40m | -20 / -20 | EX7CQ | -4 / - | 2 | Partial capture |
| 08-24 23:07 | 80m | - / - | DO1HDS | -17 / - | 5 | Partial capture |
| 08-24 23:05 | 80m | - / - | UA4FKT | +8 / - | 4 | Partial capture |
| 08-14 01:42 | 80m | - / -15 | TF3VS | 0 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 001745 -20 1364 EX7CQ EA8CZK IL18 001800 -4 1716 EA8CZK EX7CQ -20
UTC dB Audio Message 014315 -2 2010 EA8CZK TF3VS R-15 (x2) 225930 -22 1233 CQ EA8CZK IL18 (x4) 230515 +6 1233 EA8CZK UA4FKT LO23 (x4) 230715 -16 1234 EA8CZK DO1HDS JO50 (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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