EA8CPU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA8CPU, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-08-04.
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 30 FT8 messages attributed to EA8CPU as the transmitting token by decoded message structure across 2 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 -17 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 30 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -24 to -8 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 4.
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 EA8CPU in decoded directed-looking exchanges:
Most frequent locator attributed to EA8CPU
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
- IL27 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,986 km (approx.)
- Last such locator decoded
- 2026-08-04 18:38 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 | EA8CPU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-04 18:37 | 20m | - / - | RY7G | -4 / - | 2 | Partial capture |
| 08-04 18:24 | 20m | -11 / - | YO4LUP | - / -6 | 2 | Partial capture |
| 08-04 18:22 | 20m | - / - | IK4LZH | -10 / - | 2 | Partial capture |
| 08-04 18:17 | 20m | -9 / - | DL3MIB | - / -6 | 4 | ✓ Closing fragment |
| 08-04 18:13 | 20m | -9 / -1 | EB3DBR | -4 / -1 | 4 | ✓ Full exchange observed |
| 08-04 17:13 | 20m | - / -1 | EA1ERH | -12 / - | 2 | Partial capture |
| 08-03 21:27 | 20m | - / -14 | EA1FUB | -6 / - | 2 | ✓ Closing fragment |
| 08-02 19:56 | 20m | - / +7 | <...> | -6 / - | 4 | Partial capture |
| 08-02 19:54 | 20m | - / -10 | LA4YGA | -8 / - | 3 | Partial capture |
| 08-02 19:53 | 20m | - / - | F5RRS | +5 / - | 5 | Partial capture |
| 08-02 19:51 | 20m | - / - | PD2MAC/P | -10 / - | 4 | Partial capture |
| 08-02 19:50 | 20m | - / -8 | PD1ADA | -3 / - | 6 | ✓ Closing fragment |
| 08-02 19:49 | 20m | - / - | PD9JPV | -15 / - | 2 | Partial capture |
| 08-02 19:39 | 20m | -12 / - | F5JQF | - / -9 | 2 | ✓ Closing fragment |
| 08-02 19:31 | 20m | -17 / -19 | UA3VVA | -7 / -9 | 24 | ✓ Full exchange observed |
| 08-02 19:26 | 20m | -14 / - | DH3KR | - / -12 | 5 | Partial capture |
| 08-02 10:17 | 20m | - / -19 | F1AFW | -21 / - | 3 | ✓ Closing fragment |
| 08-02 10:13 | 20m | - / -10 | IU5HIU | -6 / - | 2 | Partial capture |
| 08-02 10:12 | 20m | - / - | F1AFW | -22 / - | 4 | Partial capture |
| 08-02 10:06 | 20m | - / -18 | ON1JP | -19 / - | 3 | ✓ Closing fragment |
| 07-30 22:10 | 20m | - / -7 | ON1JP | -11 / - | 2 | Partial capture |
| 07-30 22:07 | 20m | - / -13 | BI4XDT | -9 / - | 3 | ✓ Closing fragment |
| 07-28 22:11 | 20m | - / -8 | IK4LZH | -2 / - | 3 | ✓ Closing fragment |
| 07-28 22:10 | 20m | - / - | DL9GCW | +2 / - | 2 | Partial capture |
| 07-28 22:09 | 20m | - / - | M8KUG | -12 / - | 6 | ✓ Closing fragment |
| 07-28 22:07 | 20m | - / -14 | F1PBZ | -8 / - | 3 | Partial capture |
| 07-28 19:06 | 20m | - / -19 | DG6IDA | -13 / - | 6 | Partial capture |
| 07-28 19:03 | 20m | - / - | DG6IDA | -5 / - | 3 | Partial capture |
| 07-22 18:31 | 20m | - / +5 | IN3BFW | -14 / - | 2 | ✓ Closing fragment |
| 07-06 21:21 | 20m | - / -15 | JA4LXY | -6 / - | 4 | ✓ Closing fragment |
| 07-06 21:21 | 20m | - / - | DL1R | +9 / - | 8 | Partial capture |
| 07-06 11:47 | 20m | - / -13 | ON8BB | -14 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 181800 -10 548 DL3MIB EA8CPU -07 (x2) 181915 -11 2493 EA8CPU IZ4JMA JN54 182200 -15 1107 CQ EA8CPU IL27 (x2) 182245 -10 460 EA8CPU IK4LZH JN54 182315 +2 1108 EA8CPU RY7G LN14 182345 -10 460 EA8CPU IK4LZH JN54 182400 -11 1107 YO4LUP EA8CPU -06 (x2) 183700 -19 2158 CQ EA8CPU IL27 (x2) 183745 -3 2158 EA8CPU RY7G LN14 183800 -21 2158 CQ EA8CPU IL27 183815 -6 2158 EA8CPU RY7G LN14
UTC dB Audio Message 122600 -17 2449 EA8CPU DO1FDK JO41 155800 -11 310 EA8CPU DG2EBG JO31
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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