F8RFA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F8RFA, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-07.
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 F8RFA 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 (100%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 23 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -8 to +1 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 22.
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 F8RFA in decoded directed-looking exchanges:
Most frequent locator attributed to F8RFA
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
- JN33 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,332 km (approx.)
- Last such locator decoded
- 2026-09-07 18:12 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 | F8RFA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 18:15 | 40m | -8 / - | UA3SCU | - / -9 | 2 | ✓ Closing fragment |
| 09-07 18:12 | 40m | -6 / -21 | SP7TF | -4 / -9 | 6 | ✓ Full exchange observed |
| 09-07 18:10 | 40m | -5 / - | F5LMJ | - / -15 | 2 | ✓ Closing fragment |
| 09-07 18:09 | 40m | -3 / -1 | G1ISP/P | -5 / -9 | 3 | ✓ Full exchange observed |
| 09-07 18:07 | 40m | -2 / - | F5LMJ | - / -18 | 3 | Partial capture |
| 09-07 18:05 | 40m | 0 / - | DL3IAK | -6 / -9 | 4 | ✓ Closing observed |
| 09-07 18:04 | 40m | 0 / +2 | DL7ACA | +4 / -5 | 5 | ✓ Full exchange observed |
| 09-07 18:04 | 40m | - / - | EA1KCN | -8 / - | 2 | Partial capture |
| 09-07 17:59 | 40m | - / -5 | F1PBZ | -2 / - | 4 | Partial capture |
| 09-07 17:59 | 40m | - / - | OE8PIT | +5 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180900 -3 866 CQ F8RFA JN33 180930 -2 866 G1ISP/P F8RFA -09 180945 -5 864 F8RFA G1ISP/P R-01 181000 -4 866 G1ISP/P F8RFA RR73 181030 -7 866 F5LMJ F8RFA -15 (x2) 181200 -3 866 CQ F8RFA JN33 181245 -6 865 F8RFA SP7TF -21 181300 -4 866 SP7TF F8RFA R-09 (x3) 181415 -2 2266 F8RFA SP7TF RR73 181430 -6 865 SP7TF F8RFA R-09 181500 -7 866 UA3SCU F8RFA R-09 (x2)
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