F1SNB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F1SNB, decoded by SO8OO in southeastern Poland. 136 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-27.
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 136 FT8 messages attributed to F1SNB 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 (93%), followed by 10 m (7%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was 0 dB.
Overview
Bands
Last attributed message: 2026-08-27 16:49 UTC
Observed FT8 message patterns
- Attributed sample
- 136 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -22 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 75.
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 F1SNB 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 F1SNB
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 · 118 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,332 km (approx.)
- Last such locator decoded
- 2026-08-27 16:49 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 | F1SNB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 16:48 | 20m | +4 / - | CN8PA | - / - | 2 | Partial capture |
| 08-27 16:33 | 20m | +4 / - | Z34CMF | - / - | 2 | Partial capture |
| 08-27 16:29 | 20m | +4 / - | OK5AG/P | - / - | 2 | Partial capture |
| 08-27 16:27 | 20m | +4 / - | BA4VDC | - / - | 3 | Partial capture |
| 08-27 16:26 | 20m | +3 / - | A61FJ | - / - | 3 | Partial capture |
| 08-27 16:24 | 20m | +5 / - | OK5AG/P | - / - | 2 | Partial capture |
| 08-27 16:23 | 20m | +3 / - | BG7BVI | - / - | 3 | Partial capture |
| 08-27 16:21 | 20m | -1 / - | SP7TF | - / +1 | 3 | ✓ Closing fragment |
| 08-27 16:20 | 20m | +3 / - | EX8ABQ | - / - | 2 | Partial capture |
| 08-27 16:16 | 20m | +6 / -10 | 4X1UF | -2 / -6 | 8 | ✓ Full exchange observed |
| 08-27 16:10 | 20m | -1 / - | BG7BVI | - / - | 7 | Partial capture |
| 08-27 16:09 | 20m | -1 / - | ZL2NU | - / -17 | 3 | ✓ Closing fragment |
| 07-20 10:07 | 20m | -22 / -14 | <...> | -22 / -17 | 6 | Partial capture |
| 07-20 09:52 | 20m | -22 / - | <...> | - / - | 2 | Partial capture |
| 07-17 15:05 | 20m | -18 / - | AE6CH | - / - | 2 | Partial capture |
| 07-14 15:25 | 20m | -21 / +3 | F4GHN | -10 / -6 | 8 | ✓ Full exchange observed |
| 07-14 15:22 | 20m | -16 / - | 9M2HUS | - / - | 3 | Partial capture |
| 07-14 15:18 | 20m | -15 / - | YE4FNN | - / - | 4 | Partial capture |
| 07-14 15:14 | 20m | -18 / - | A61DD | - / -13 | 6 | Partial capture |
| 07-02 16:33 | 20m | -13 / - | BV7RR | - / - | 3 | Partial capture |
| 07-02 16:27 | 20m | -14 / - | <...> | - / - | 2 | Partial capture |
| 07-02 16:23 | 20m | -16 / - | <...> | - / - | 3 | Partial capture |
| 07-02 16:19 | 20m | -16 / - | VK2LAW | - / - | 3 | Partial capture |
| 07-02 16:14 | 20m | -16 / - | BG0DLA | - / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162515 +9 1478 OK5AG/P F1SNB JN33 162615 +6 1478 A61FJ F1SNB JN33 (x3) 162745 +6 1478 BA4VDC F1SNB JN33 (x3) 162915 +3 1478 OK5AG/P F1SNB JN33 (x2) 163315 +5 1478 Z34CMF F1SNB JN33 (x2) 163415 +4 1477 BG7BVI F1SNB JN33 164800 -14 1477 NL8F F1SNB 73 164830 +4 1477 CN8PA F1SNB JN33 (x2)
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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