EA1KCU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA1KCU, decoded by SO8OO in southeastern Poland. 2,051 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-16.
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 2,051 FT8 messages attributed to EA1KCU as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (47%), followed by 40 m (33%) and 80 m (12%). Most decodes (74%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-10-16 23:04 UTC
Observed FT8 message patterns
- Attributed sample
- 2,051 messages
- Active dates
- 82 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -17 to -0.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 286, moderate (-15 to -9 dB) 643, strong (≥ -8 dB) 1,122.
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 EA1KCU 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 EA1KCU
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
- IN62 · 1,147 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,347 km (approx.)
- Last such locator decoded
- 2026-10-16 23:04 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 | EA1KCU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 23:03 | 40m | +1 / - | WB3FME | - / -20 | 2 | ✓ Closing fragment |
| 10-16 23:02 | 40m | - / - | EA1ITS | -2 / - | 6 | Partial capture |
| 10-16 23:01 | 40m | - / - | OK3MB | -4 / - | 3 | Partial capture |
| 10-16 22:56 | 40m | 0 / - | PD1HBL | - / -6 | 2 | ✓ Closing fragment |
| 10-16 22:51 | 40m | -6 / - | YD1EQN | - / - | 2 | Partial capture |
| 10-16 11:11 | 10m | -2 / - | LZ1LZ | - / -3 | 2 | ✓ Closing fragment |
| 10-16 11:09 | 10m | -8 / - | YO4NT | - / -3 | 2 | ✓ Closing fragment |
| 10-15 22:59 | 80m | -8 / -16 | OH4LRP | -3 / -7 | 5 | ✓ Full exchange observed |
| 10-15 22:57 | 80m | -10 / -19 | EA4DS | -15 / - | 5 | ✓ Full exchange observed |
| 10-15 22:56 | 80m | -12 / -12 | SP5EXA | +6 / +8 | 5 | ✓ Full exchange observed |
| 10-15 22:54 | 80m | -9 / -8 | ON4MAP | -19 / -7 | 5 | ✓ Full exchange observed |
| 10-15 22:53 | 80m | -10 / -19 | YO6LM | +3 / - | 4 | ✓ Closing observed |
| 10-15 22:51 | 80m | -10 / - | UN0GY | -12 / -10 | 5 | ✓ Closing observed |
| 10-15 22:43 | 40m | -11 / - | EP2AES | - / - | 3 | Partial capture |
| 10-14 05:44 | 80m | - / -2 | DK7ZT | +4 / - | 3 | ✓ Closing fragment |
| 10-14 05:43 | 80m | - / -15 | DO7BE | -17 / - | 3 | ✓ Closing fragment |
| 10-14 05:41 | 80m | - / -15 | DJ1OJ | +17 / - | 3 | ✓ Closing fragment |
| 10-14 05:37 | 80m | -19 / - | EA1DLU | 0 / - | 4 | ✓ Closing observed |
| 10-14 05:33 | 80m | -18 / - | PJ2/W4IPC | - / - | 5 | Partial capture |
| 10-14 05:25 | 80m | - / -10 | F4FSY | -4 / - | 2 | ✓ Closing fragment |
| 10-14 05:24 | 80m | - / -10 | UF2F | +10 / - | 2 | ✓ Closing fragment |
| 10-14 05:15 | 80m | -22 / - | PJ2/W4IPC | - / - | 2 | Partial capture |
| 10-14 04:57 | 80m | -14 / - | PJ2/W4IPC | - / - | 5 | Partial capture |
| 10-13 13:37 | 10m | +2 / - | 3B8HE | - / - | 5 | Partial capture |
| 10-13 13:35 | 10m | -2 / - | EW8DU | - / -9 | 2 | ✓ Closing fragment |
| 10-13 13:32 | 10m | +2 / - | LY2HM | - / 0 | 2 | ✓ Closing fragment |
| 10-12 20:07 | 40m | -2 / - | VK3AMP | - / - | 5 | Partial capture |
| 10-12 20:04 | 80m | -10 / - | HF40BLP | - / - | 4 | Partial capture |
| 10-12 20:03 | 80m | -10 / -9 | DL1IP | +13 / 0 | 5 | ✓ Full exchange observed |
| 10-12 19:57 | 80m | -7 / - | D2UY | - / - | 11 | Partial capture |
| 10-12 19:54 | 80m | -2 / -18 | LY1DY | +7 / - | 4 | ✓ Closing observed |
| 10-12 19:51 | 80m | -7 / -3 | PA0LDE | -18 / -4 | 3 | Partial capture |
| 10-12 19:50 | 80m | -8 / +5 | F4JYH | -5 / +6 | 4 | ✓ Full exchange observed |
| 10-12 19:49 | 80m | -8 / - | DO1NJN | - / -2 | 2 | ✓ Closing fragment |
| 10-12 19:47 | 80m | -11 / -16 | LZ2VQ | -2 / -15 | 4 | ✓ Full exchange observed |
| 10-12 19:45 | 80m | -8 / -21 | S57MPU | +8 / -1 | 5 | ✓ Full exchange observed |
| 10-12 19:43 | 80m | -12 / - | OM1TD | 0 / -11 | 4 | ✓ Closing observed |
| 10-11 20:41 | 40m | -8 / - | JW6VM | - / -17 | 4 | Partial capture |
| 10-11 20:31 | 40m | -7 / -3 | G8TJQ | -6 / - | 3 | ✓ Closing observed |
| 10-11 20:30 | 40m | -8 / - | PD2RAL | - / -9 | 2 | ✓ Closing fragment |
| 10-11 20:22 | 40m | -8 / - | DL4DP | - / -10 | 2 | ✓ Closing fragment |
| 10-11 20:21 | 40m | -7 / - | F4MGP | -13 / - | 8 | ✓ Closing observed |
| 10-11 20:20 | 40m | -8 / - | F5PEG | - / -11 | 2 | ✓ Closing fragment |
| 10-11 20:19 | 40m | -6 / - | RN2F | - / -13 | 2 | ✓ Closing fragment |
| 10-11 20:16 | 40m | -6 / -3 | DK1FS | -6 / - | 2 | ✓ Closing observed |
| 10-11 20:15 | 40m | -6 / - | RW3ZC | - / -24 | 2 | ✓ Closing fragment |
| 10-11 20:12 | 40m | -5 / - | EB3DIM | -2 / - | 3 | ✓ Closing observed |
| 10-11 20:08 | 40m | - / -6 | EB3DIM | +2 / - | 2 | Partial capture |
| 10-11 20:08 | 40m | -6 / - | R9FAI | -15 / +3 | 5 | ✓ Closing observed |
| 10-11 20:08 | 40m | -4 / -15 | UT1US | +4 / - | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 230130 -3 459 CQ EA1KCU IN62 230145 -8 676 EA1KCU OK3MB JO70 230200 +0 459 CQ EA1KCU IN62 230215 -3 458 EA1KCU EA1ITS IN62 230230 -2 459 CQ EA1KCU IN62 230245 -5 676 EA1KCU OK3MB JO70 230245 -5 457 EA1KCU EA1ITS IN62 230315 +0 676 EA1KCU OK3MB JO70 230315 -1 460 EA1KCU EA1ITS IN62 230330 -1 459 WB3FME EA1KCU -20 (x2) 230430 +0 458 CQ EA1KCU IN62 230445 -1 458 EA1KCU EA1ITS IN62 (x3)
UTC dB Audio Message 133900 +3 458 3B8HE EA1KCU IN62 133930 -5 457 CQ EA1KCU IN62 (x3) 134100 -1 456 N3UO EA1KCU -11 134215 -8 455 CQ EA1KCU IN62 (x4) 110915 -10 534 YO4NT EA1KCU R-03 (x2) 111015 -7 532 CQ EA1KCU IN62 (x2) 111115 +0 531 LZ1LZ EA1KCU -03 (x2)
UTC dB Audio Message 225715 +4 2197 EA1KCU SP5EXA R-12 225730 -12 2198 SP5EXA EA1KCU RR73 225745 +7 2197 EA1KCU SP5EXA 73 225745 -15 2254 EA1KCU EA4DS IN80 225800 -11 2197 EA4DS EA1KCU +11 225815 -15 2254 EA1KCU EA4DS R-19 225830 -10 2197 EA4DS EA1KCU RR73 225845 -15 2254 EA1KCU EA4DS 73 225900 -14 2197 CQ EA1KCU IN62 (x2) 225945 -6 2197 EA1KCU OH4LRP KP32 230000 -9 2197 OH4LRP EA1KCU -07 230015 +0 2197 EA1KCU OH4LRP R-16 230030 -7 2197 OH4LRP EA1KCU RR73 230045 -3 2197 EA1KCU OH4LRP 73
UTC dB Audio Message 182230 -8 1781 A61OK EA1KCU R-20 (x2) 063130 -10 798 F1IQH EA1KCU RR73 063200 -14 798 CQ EA1KCU IN62 (x2) 063300 -11 797 R3KLA EA1KCU -19 (x3) 063430 -7 796 CQ EA1KCU IN62 (x2) 063515 +5 587 EA1KCU RZ7KR -14 (x2) 180345 -5 1012 EX7DY EA1KCU IN62 (x3)
UTC dB Audio Message 214545 -20 2746 EA1KCU F1PBZ -10 (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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