EA5FI — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving EA5FI, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-16 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 14 FT8 messages attributed to EA5FI as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (86%), followed by 40 m (14%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-30 19:31 UTC
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -9 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 6.
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 EA5FI 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 EA5FI
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
- IM98 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,203 km (approx.)
- Last such locator decoded
- 2026-08-24 17:44 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 | EA5FI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 16:25 | 20m | - / - | PE9JAN | +1 / - | 4 | Partial capture |
| 08-30 12:13 | 20m | - / -2 | DK1TBL | -6 / - | 2 | Partial capture |
| 08-24 17:43 | 20m | -5 / - | DD5TL | - / -14 | 3 | Partial capture |
| 08-04 12:04 | 20m | - / -9 | DG4BBK | -12 / - | 2 | Partial capture |
| 07-28 03:03 | 20m | - / -12 | W1AW/4 | -16 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 120030 -17 1266 EA5FI <...> +05 120415 -9 974 EA5FI DG4BBK -09 (x2) 115130 -17 1031 EA5FI DA2DH 73 192900 -16 1287 EA5FI <...> R-07 174330 -7 1167 DD5TL EA5FI IM98 (x3) 121315 -7 815 EA5FI DK1TBL R-02 (x2) 162515 +1 1697 EA5FI PE9JAN JO22 (x4) 193145 -8 728 W1AW/2 EA5FI R-17
UTC dB Audio Message 202500 -23 1740 EG5DX EA5FI RR73 210845 -8 2668 IU4SQE EA5FI -16 181800 -1 1363 EA5FI GB64MOD -19
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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