EA1FB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA1FB, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-09-14.
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 EA1FB as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (76%), followed by 40 m (24%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-14 16:39 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -12 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 0.
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 EA1FB 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.
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 | EA1FB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-01 17:33 | 40m | -20 / - | DJ0MAB | -5 / -10 | 4 | ✓ Closing observed |
| 08-29 17:51 | 20m | -12 / - | VE3ARF | - / -20 | 2 | ✓ Closing fragment |
| 08-29 17:47 | 20m | -16 / - | CN8SSB | - / -7 | 3 | ✓ Closing fragment |
| 08-29 17:43 | 20m | -11 / -5 | 4L7T | -8 / - | 6 | ✓ Closing observed |
| 08-29 17:42 | 20m | - / -12 | EB3JT | +12 / - | 3 | ✓ Closing fragment |
| 08-15 18:55 | 20m | - / +7 | T77R | -14 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173345 -8 1687 EA1FB DJ0MAB JN49 173400 -20 1688 DJ0MAB EA1FB -10 (x2) 173445 -2 1687 EA1FB DJ0MAB 73 174800 -14 2580 EA1FB EA1KCN 73 174830 -9 1688 EA1FB DL7ACA JO40 170315 -22 1844 EA1IQM EA1FB -11 160200 -20 1814 EA1FB F6FHZ JN18 163945 -23 1935 EA1IQM EA1FB RR73
UTC dB Audio Message 171115 -12 2478 R9AL EA1FB -17 174230 +13 1893 EA1FB EB3JT JN01 (x2) 174315 -4 2770 EA1FB 4L7T R-05 174330 +10 1893 EA1FB EB3JT 73 174345 -15 2770 EA1FB 4L7T R-05 (x2) 174430 -11 1842 4L7T EA1FB RR73 174445 -9 2770 EA1FB 4L7T 73 174500 -11 1842 4L7T EA1FB RR73 174730 -11 1842 CN8SSB EA1FB -07 (x3) 175100 -12 1842 VE3ARF EA1FB -20 (x2)
UTC dB Audio Message 110430 -13 944 EA1FB DN9JGL R-12
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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