DD5Y — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DD5Y, decoded by SO8OO in southeastern Poland. 847 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-07.
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 847 FT8 messages attributed to DD5Y as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 20 m (26%) and 80 m (26%). In this small sample, the estimated median decoder S/N was +5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-06-07 23:16 UTC
Observed FT8 message patterns
- Attributed sample
- 847 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- +5 dB
- Estimated 10th-90th percentile
- -4 to +12 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 806.
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).
Most frequent locator attributed to DD5Y
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
- JO73 · 335 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 613 km (approx.)
- Last such locator decoded
- 2026-06-07 23:14 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
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