EA3CUU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA3CUU, decoded by SO8OO in southeastern Poland. 2,408 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 103 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.
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 2,408 FT8 messages attributed to EA3CUU as the transmitting token by decoded message structure across 103 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 80 m (21%) and 60 m (12%). Most decodes (74%) fell within the six-hour window 03:00-09:00 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: 2026-10-06 05:38 UTC
Observed FT8 message patterns
- Attributed sample
- 2,408 messages
- Active dates
- 103 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -18 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 423, moderate (-15 to -9 dB) 700, strong (≥ -8 dB) 1,285.
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 EA3CUU 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 EA3CUU
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
- JN12 · 1,459 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,659 km (approx.)
- Last such locator decoded
- 2026-10-06 05:38 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 | EA3CUU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 05:35 | 60m | -15 / -9 | LZ2VQ | -9 / -8 | 6 | ✓ Full exchange observed |
| 10-06 05:34 | 60m | -13 / - | K8BL | - / -14 | 3 | ✓ Closing fragment |
| 10-06 05:32 | 60m | -12 / - | HI3QMT | - / - | 2 | Partial capture |
| 10-06 05:04 | 80m | -5 / - | KP2B | - / -16 | 29 | Partial capture |
| 10-06 04:50 | 80m | -5 / - | KP2B | - / - | 14 | Partial capture |
| 10-06 04:37 | 60m | -5 / - | WD4OBP | - / -21 | 4 | ✓ Closing fragment |
| 10-06 04:34 | 60m | -10 / - | SV5/TF1OL | - / -14 | 4 | Partial capture |
| 10-06 04:25 | 60m | +6 / - | NP3RK | -13 / -7 | 4 | ✓ Closing observed |
| 10-06 04:23 | 60m | -3 / - | KD3CLB | - / -16 | 5 | Partial capture |
| 10-06 04:19 | 80m | +10 / - | OH6IH | - / - | 4 | Partial capture |
| 10-06 04:17 | 80m | +12 / +2 | LY5A | +13 / -6 | 7 | ✓ Full exchange observed |
| 10-05 05:44 | 40m | -16 / - | C5R | - / -16 | 2 | Partial capture |
| 10-05 05:36 | 40m | -19 / - | C5R | - / -9 | 5 | Partial capture |
| 10-05 05:32 | 40m | -12 / - | TI5RR | - / -19 | 3 | Partial capture |
| 10-05 05:31 | 40m | -7 / -8 | UA3IHJ | 0 / -1 | 4 | ✓ Full exchange observed |
| 10-05 05:18 | 80m | -3 / - | DO4DXA | +15 / -2 | 3 | ✓ Closing observed |
| 10-05 05:15 | 80m | -4 / -13 | IQ9SZ/3 | -2 / -19 | 4 | Partial capture |
| 10-05 05:06 | 40m | -8 / - | SV5/TF1OL | - / -10 | 3 | Partial capture |
| 10-05 05:04 | 40m | -19 / - | CO7KD | - / - | 2 | Partial capture |
| 10-05 04:23 | 40m | -10 / - | W5RBD | - / - | 9 | Partial capture |
| 10-05 04:10 | 80m | +1 / -11 | RN2F | 0 / -16 | 5 | ✓ Full exchange observed |
| 10-05 04:02 | 80m | +2 / - | HK3TY | -18 / -22 | 14 | ✓ Closing observed |
| 10-04 05:42 | 60m | -15 / -2 | DL9ATW | -10 / -14 | 8 | ✓ Full exchange observed |
| 10-04 05:41 | 60m | -14 / - | KD4EXS | - / -8 | 4 | ✓ Closing fragment |
| 10-04 05:15 | 40m | -13 / - | WB5BI | - / -24 | 15 | Partial capture |
| 10-04 05:05 | 60m | -6 / 0 | Z61DX | -10 / -8 | 5 | ✓ Full exchange observed |
| 10-04 04:52 | 60m | -7 / - | 9T0MD | - / - | 21 | Partial capture |
| 10-04 04:45 | 80m | -1 / - | C5R | - / -15 | 3 | Partial capture |
| 10-04 04:40 | 80m | +8 / - | V51WH | - / - | 8 | Partial capture |
| 10-04 04:37 | 80m | 0 / - | C5R | - / -15 | 4 | Partial capture |
| 10-04 04:34 | 80m | +4 / - | VE2XEN | - / -12 | 3 | ✓ Closing fragment |
| 10-03 06:05 | 40m | -10 / - | HI3R | - / -16 | 3 | ✓ Closing fragment |
| 10-03 05:55 | 40m | -15 / -6 | DL9KM | -4 / -8 | 5 | ✓ Full exchange observed |
| 10-03 05:54 | 40m | -7 / - | G3TKT | - / -7 | 2 | ✓ Closing fragment |
| 10-03 05:53 | 40m | -6 / - | EA7AH | - / +1 | 2 | ✓ Closing fragment |
| 10-03 05:49 | 40m | -14 / - | WE9G | - / -25 | 2 | Partial capture |
| 10-03 05:48 | 40m | -1 / - | K1NZ | - / -12 | 3 | ✓ Closing fragment |
| 10-03 05:17 | 60m | -4 / - | KF8DZR | - / - | 5 | Partial capture |
| 10-03 05:06 | 60m | -12 / - | AA4XD | - / -10 | 8 | ✓ Closing fragment |
| 10-03 05:02 | 80m | -11 / - | AA4DD | - / -13 | 3 | ✓ Closing fragment |
| 10-03 05:00 | 80m | -7 / - | XE1PM | - / -22 | 3 | ✓ Closing fragment |
| 10-03 04:59 | 80m | 0 / +10 | WA1J | +2 / - | 3 | ✓ Closing observed |
| 10-03 04:54 | 80m | -4 / - | AD9GE | - / -22 | 10 | ✓ Closing fragment |
| 10-02 06:04 | 60m | -14 / - | HC2GRC | - / - | 2 | Partial capture |
| 10-02 05:56 | 60m | -9 / - | LA7DFA | - / - | 3 | Partial capture |
| 10-02 05:44 | 60m | -15 / - | HI3RRR | - / - | 10 | Partial capture |
| 10-02 05:25 | 40m | 0 / - | W5RBD | - / - | 6 | Partial capture |
| 10-02 05:18 | 80m | -24 / - | K0HB | - / -7 | 3 | ✓ Closing fragment |
| 10-02 05:10 | 60m | -10 / - | XE2SSB | - / - | 2 | Partial capture |
| 10-02 05:08 | 60m | -14 / - | N3FMC | - / -14 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 053100 +0 316 EA3CUU UA3IHJ -08 053115 -7 317 UA3IHJ EA3CUU R-01 053130 +1 316 EA3CUU UA3IHJ RR73 053145 -7 317 UA3IHJ EA3CUU 73 053230 -19 1663 TI5RR EA3CUU R-19 (x3) 053645 -19 1594 C5R EA3CUU R-09 (x7) 053845 +2 2740 W5RBD EA3CUU JN12
UTC dB Audio Message 043800 -9 1999 WD4OBP EA3CUU R-21 (x3) 052845 -14 991 HI3QMT EA3CUU JN12 (x3) 053415 -14 2126 K8BL EA3CUU JN12 (x3) 053530 -8 2127 EA3CUU LZ2VQ KN23 (x2) 053615 -14 2126 LZ2VQ EA3CUU -08 053630 -7 2126 EA3CUU LZ2VQ R-09 053645 -16 2128 LZ2VQ EA3CUU RRR 053700 -9 2128 EA3CUU LZ2VQ 73
UTC dB Audio Message 051230 +0 2436 KP2B EA3CUU R-16 (x15)
UTC dB Audio Message 101615 -5 401 RN4AQ EA3CUU 73 101715 -8 2454 F4IDN EA3CUU RR73 092115 -12 2714 <...> EA3CUU JN12 092330 -17 1472 R8AAU EA3CUU R-13 (x2) 092700 -4 505 JG3TRB EA3CUU 73 092730 -13 1595 BG8KUB EA3CUU JN12 (x4) 093000 -8 1032 RY9W EA3CUU R-17 (x2) 111430 -17 1435 <...> EA3CUU JN12 113015 -24 1847 9K2YM EA3CUU R-16 113245 -8 481 V51WH EA3CUU JN12
UTC dB Audio Message 061915 -17 864 VK2DYN EA3CUU JN12 (x4) 063245 +6 2879 EA3CUU F5PBG IN78 063300 -17 1930 VK3JV EA3CUU JN12 063315 +13 2879 EA3CUU F5PBG IN78 063330 -17 1930 VK3JV EA3CUU JN12 063345 +3 2879 EA3CUU F5PBG IN78 (x2) 063700 -6 1931 VK3JV EA3CUU JN12 065615 -7 807 NP3MR EA3CUU JN12 075230 -9 2615 VK4HG/P EA3CUU JN12 (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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