DA6YMB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DA6YMB, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-07-24.
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 16 FT8 messages attributed to DA6YMB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (44%), followed by 10 m (44%) and 20 m (13%). In this small sample, the estimated median decoder S/N was -6 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-24 11:18 UTC
Observed FT8 message patterns
- Attributed sample
- 16 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -6 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, 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 DA6YMB in decoded directed-looking exchanges:
Most frequent locator attributed to DA6YMB
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
- JO40 · 12 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 911 km (approx.)
- Last such locator decoded
- 2026-07-24 11:17 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 | DA6YMB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-27 10:52 | 20m | - / -5 | PD1B | -15 / - | 2 | ✓ Closing fragment |
| 07-24 11:17 | 20m | -22 / - | EA8AT | - / -11 | 2 | Partial capture |
| 07-19 18:45 | 10m | - / -14 | SV2CLJ | -12 / - | 2 | Partial capture |
| 07-19 18:38 | 10m | -7 / -14 | SV2CLJ | -16 / - | 5 | Partial capture |
| 07-19 18:36 | 10m | -7 / - | PY2ERP | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 111730 -21 1406 EA8AT DA6YMB JO40 (x2) 105200 -14 1561 DA6YMB PD1B -05 (x2) 105330 -19 216 DA6YMB EA3HMM JN00
UTC dB Audio Message 183630 -7 1047 PY2ERP DA6YMB JO40 (x3) 183800 -7 845 SV2CLJ DA6YMB JO40 (x4) 183945 -16 845 DA6YMB SV2CLJ -14 (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.
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