EA7YA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA7YA, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-08-31.
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 21 FT8 messages attributed to EA7YA 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 -2 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -7 to +5 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 20.
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 EA7YA in decoded directed-looking exchanges:
Most frequent locator attributed to EA7YA
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
- IM77 · 12 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,538 km (approx.)
- Last such locator decoded
- 2026-08-31 18:33 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 | EA7YA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 18:33 | 20m | -6 / - | W1JKN | - / - | 2 | Partial capture |
| 08-31 18:31 | 20m | -7 / - | EX7DY | - / - | 3 | Partial capture |
| 08-31 18:24 | 20m | +4 / - | YO4NF | - / -7 | 3 | ✓ Closing fragment |
| 08-31 18:21 | 20m | +5 / -2 | IU5HIU | -3 / -5 | 8 | ✓ Full exchange observed |
| 08-31 18:00 | 20m | -4 / - | UN3P | - / - | 3 | Partial capture |
| 08-29 08:35 | 20m | +2 / - | CT1GFK/P | - / -14 | 2 | Partial capture |
| 08-29 08:27 | 20m | -2 / - | OD5ZZ | - / -16 | 3 | ✓ Closing fragment |
| 08-29 08:25 | 20m | +2 / - | TA1MB | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182230 -4 443 EA7YA IU5HIU JN53 (x2) 182315 +5 442 IU5HIU EA7YA -05 182330 -6 443 EA7YA IU5HIU R-02 182345 +5 442 IU5HIU EA7YA RR73 182445 +5 441 YO4NF EA7YA R-07 (x3) 182630 -10 274 EA7YA RX9ABI -14 182845 -8 1215 EX7DY EA7YA IM77 (x4) 183315 -6 1271 W1JKN EA7YA IM77 (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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