EA1IS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA1IS, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-08-30.
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 23 FT8 messages attributed to EA1IS as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). 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 -15 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 23 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -18 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 1.
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 EA1IS 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 EA1IS
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
- IN52 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,488 km (approx.)
- Last such locator decoded
- 2026-08-30 22:15 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 | EA1IS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 23:01 | 20m | -16 / - | VA3FF | - / -24 | 2 | Partial capture |
| 08-25 23:30 | 20m | -13 / - | XQ1KK | - / - | 2 | Partial capture |
| 08-23 22:48 | 20m | -14 / - | BH4ECL | - / -21 | 6 | ✓ Closing fragment |
| 08-05 00:41 | 40m | - / - | F1IQH | -16 / - | 2 | Partial capture |
| 08-02 20:01 | 20m | - / - | PD4RJ | -10 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 234200 -14 1116 WS7M EA1IS IN52 225545 -15 1155 KC0VTJ EA1IS IN52 225745 -14 1155 VA3FF EA1IS IN52 (x3) 230215 -18 1157 CQ EA1IS IN52 (x7) 230545 -16 1159 VA3FF EA1IS -13 220900 -9 1114 CQ EA1IS IN52 (x2)
UTC dB Audio Message 004130 -15 1120 EA1IS F1IQH JN27 (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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