YO8TNB — 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 YO8TNB, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-08-28.
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 YO8TNB as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was +13 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- +13 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 14.
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 YO8TNB in decoded directed-looking exchanges:
Most frequent locator attributed to YO8TNB
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
- KN37 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-08-28 07:50 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 | YO8TNB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 09:08 | 10m | - / - | UN6LN | 0 / - | 2 | ✓ Closing fragment |
| 11-04 09:02 | 10m | - / +8 | UN6LN | +4 / - | 2 | Partial capture |
| 10-30 07:02 | 10m | - / +3 | RW0SM | -4 / - | 2 | ✓ Closing fragment |
| 10-23 10:37 | 10m | - / -12 | 4X5CG | -16 / - | 3 | Partial capture |
| 08-28 07:44 | 20m | +13 / - | 3V8HP | - / - | 13 | Partial capture |
| 08-17 13:00 | 10m | - / +4 | F5CUN | +2 / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 144230 -9 2560 YO8TNB DK7UY 73 154115 -23 1766 YO8TNB ON5RZ JO21 124230 -23 1701 YO8TNB YG1BZZ RR73 130415 -5 2210 YO8TNB CN8WK RR73 103700 -19 1187 YO8TNB 4X5CG -12 (x3) 070215 -3 2746 YO8TNB RW0SM +03 (x2) 070830 -10 670 YO8TNB R8DV RR73 084100 -20 1220 YO8TNB R9SH RR73 090245 +5 2793 YO8TNB UN6LN +08 (x4)
UTC dB Audio Message 204200 -7 1758 T47FCR YO8TNB KN37 074400 +12 2917 3V8HP YO8TNB KN37 (x13)
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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