EA3IAF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA3IAF, decoded by SO8OO in southeastern Poland. 62 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-06 and 2026-09-20.
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 62 FT8 messages attributed to EA3IAF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (74%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (65%); the estimated median was -12 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 62 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -20 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 10.
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 EA3IAF 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 EA3IAF
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
- JN11 · 42 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,727 km (approx.)
- Last such locator decoded
- 2026-09-20 21:53 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 | EA3IAF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 21:54 | 40m | - / -12 | RY3F | +4 / - | 3 | Partial capture |
| 09-20 21:50 | 40m | -10 / - | VI9POL | - / -13 | 9 | ✓ Closing fragment |
| 09-19 05:17 | 40m | -12 / - | XE2AKL | - / - | 10 | ✓ Closing fragment |
| 09-08 04:57 | 40m | -21 / - | XE2CQ | - / - | 2 | Partial capture |
| 09-08 04:51 | 40m | -21 / - | CE3TSK | - / - | 5 | ✓ Closing fragment |
| 09-08 04:49 | 40m | -24 / - | TN8GD | - / - | 2 | Partial capture |
| 09-07 02:00 | 40m | -11 / - | YN1ZGN | - / -23 | 8 | Partial capture |
| 09-07 01:54 | 40m | - / - | UR4QWW | -2 / - | 2 | Partial capture |
| 09-07 01:53 | 40m | - / -10 | RC9WC | +3 / - | 3 | Partial capture |
| 09-07 01:51 | 40m | -12 / -19 | HC1BG | -14 / -7 | 7 | ✓ Full exchange observed |
| 09-07 01:46 | 40m | -11 / - | OA4ENG | - / -16 | 2 | Partial capture |
| 09-07 00:57 | 40m | -9 / - | XQ3MCC | - / - | 4 | Partial capture |
| 09-07 00:53 | 40m | -11 / - | XQ3MCC | - / - | 3 | Partial capture |
| 09-07 00:51 | 40m | -12 / +3 | YO4NF | +5 / 0 | 4 | ✓ Full exchange observed |
| 09-07 00:49 | 40m | -13 / -13 | EX7CQ | -3 / -1 | 4 | ✓ Full exchange observed |
| 09-06 23:34 | 40m | -11 / -7 | R2EA | -3 / - | 4 | ✓ Closing observed |
| 09-06 23:33 | 40m | -15 / -7 | IU8RFW | -13 / - | 4 | ✓ Closing observed |
| 09-06 23:32 | 40m | - / - | F5RRS | +3 / - | 3 | Partial capture |
| 09-06 23:32 | 40m | - / -3 | YO4NF | -1 / - | 2 | Partial capture |
| 09-06 23:31 | 40m | - / - | PD0LBY | -5 / - | 5 | ✓ Closing fragment |
| 09-06 23:31 | 40m | -8 / - | CT7AUT | -6 / -2 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052115 -12 1846 XE2AKL EA3IAF JN11 (x3) 215030 -18 1844 VI9POL EA3IAF JN11 (x9) 215445 +5 1844 EA3IAF RY3F -12 (x3)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee