EA1FC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA1FC, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-13.
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 17 FT8 messages attributed to EA1FC as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 80 m (12%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 19:35 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -8 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 9.
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 EA1FC in decoded directed-looking exchanges:
Most frequent locator attributed to EA1FC
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
- IN80 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,193 km (approx.)
- Last such locator decoded
- 2026-09-13 19:35 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 | EA1FC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 20:04 | 40m | - / -10 | DK7ZT | -1 / - | 3 | ✓ Closing fragment |
| 09-15 19:56 | 40m | - / -9 | IN3IZQ | -9 / - | 2 | ✓ Closing fragment |
| 09-13 19:34 | 40m | - / -13 | PD0LBY | -7 / - | 3 | Partial capture |
| 09-13 19:32 | 40m | - / -4 | GJ0KYZ | +2 / - | 2 | ✓ Closing fragment |
| 09-13 04:17 | 40m | - / -13 | US3EW | -1 / - | 4 | Partial capture |
| 09-13 04:03 | 40m | - / - | US3EW | 0 / - | 2 | Partial capture |
| 09-13 04:00 | 40m | -10 / - | S55A | - / -4 | 2 | Partial capture |
| 09-13 03:47 | 80m | - / -19 | SV9MBH | -21 / - | 3 | Partial capture |
| 09-13 03:10 | 40m | -6 / - | XE1JVO | - / -12 | 2 | Partial capture |
| 09-11 21:50 | 40m | - / - | F5PBG | -7 / - | 4 | Partial capture |
| 09-11 21:45 | 40m | - / -7 | LZ5UY | -8 / - | 2 | ✓ Closing fragment |
| 09-11 21:00 | 40m | - / -14 | YO4GIY | -9 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042045 -2 686 EA1FC US3EW R-13 193230 +3 2489 EA1FC GJ0KYZ -04 (x2) 193330 +11 684 EA1FC DJ0MAB JN49 193400 -3 2441 EA1FC TF4M -05 193400 -8 1533 EA1FC PD0LBY JO22 (x3) 193545 -17 683 JA4TKY EA1FC IN80 195645 -7 1752 EA1FC IN3IZQ -09 (x2) 200000 -8 1728 EA1FC HZ1TT -12 200430 +2 1906 EA1FC DK7ZT -10 (x3)
UTC dB Audio Message 033130 -23 652 LY7T EA1FC IN80 033700 -19 653 LA7DMA EA1FC IN80 034430 -12 1487 EA1FC SV9MBH -19 (x4)
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee