YB3RNW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YB3RNW, decoded by SO8OO in southeastern Poland. 159 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-11.
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 159 FT8 messages attributed to YB3RNW as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (80%), followed by 20 m (20%). Several six-hour UTC windows tied for the largest share (80%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-06-11 18:26 UTC
Observed FT8 message patterns
- Attributed sample
- 159 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -9 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 138.
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 YB3RNW in decoded directed-looking exchanges:
Most frequent locator attributed to YB3RNW
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
- OI62 · 37 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,731 km (approx.)
- Last such locator decoded
- 2026-06-11 18:21 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 | YB3RNW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-06 16:59 | 20m | - / -13 | DK9ZQ | -10 / - | 4 | ✓ Closing fragment |
| 07-06 16:55 | 20m | - / -10 | EA5BYS | -21 / - | 2 | Partial capture |
| 07-06 16:55 | 20m | - / -18 | EA5KBG | -13 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165545 -11 2168 YB3RNW EA5KBG -18 165545 -23 1648 YB3RNW EA5BYS IM97 165615 -14 2168 YB3RNW EA5KBG -18 165615 -19 1647 YB3RNW EA5BYS R-10 165645 -15 2168 YB3RNW EA5KBG -18 (x2) 165915 -10 1423 YB3RNW DK9ZQ JO41 (x4)
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