DL5YDD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL5YDD, decoded by SO8OO in southeastern Poland. 129 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-07-13.
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 129 FT8 messages attributed to DL5YDD as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 10 m (7%). Most decodes (62%) fell within the six-hour window 09:00-15:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-07-13 14:23 UTC
Observed FT8 message patterns
- Attributed sample
- 129 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -12 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 97.
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 DL5YDD 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 DL5YDD
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
- JO42 · 52 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 934 km (approx.)
- Last such locator decoded
- 2026-07-13 14:14 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
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 | DL5YDD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-13 14:19 | 10m | +5 / - | <...> | - / -25 | 7 | Partial capture |
| 07-13 14:14 | 10m | +4 / - | DL5YSD | -12 / - | 3 | Partial capture |
| 07-13 13:49 | 20m | -3 / - | N1IG | - / - | 3 | Partial capture |
| 07-13 11:22 | 20m | -2 / - | KB3DQI | - / - | 3 | Partial capture |
| 07-13 10:39 | 20m | -6 / -18 | EW6DM | -23 / -22 | 6 | ✓ Full exchange observed |
| 07-13 10:36 | 20m | -6 / -13 | UA6YW | -8 / -6 | 3 | ✓ Full exchange observed |
| 07-13 10:36 | 20m | -12 / - | N2JA | - / -13 | 2 | ✓ Closing fragment |
| 07-13 10:24 | 20m | -4 / - | K2JL | - / -25 | 3 | ✓ Closing fragment |
| 07-09 14:57 | 20m | - / -4 | R6DVV | -17 / - | 2 | Partial capture |
| 07-09 14:49 | 20m | - / -4 | R6DVV | -3 / - | 5 | Partial capture |
| 07-09 14:49 | 20m | - / - | RZ4FWA | -7 / - | 3 | Partial capture |
| 07-09 14:44 | 20m | - / -14 | EB3JT | -4 / - | 3 | ✓ Closing fragment |
| 07-09 14:42 | 20m | - / -1 | IQ4JO | -18 / - | 2 | Partial capture |
| 07-09 14:35 | 20m | - / - | EB3JT | 0 / - | 2 | Partial capture |
| 07-07 01:29 | 20m | +4 / - | <...> | - / - | 10 | Partial capture |
| 07-07 01:18 | 20m | +3 / - | <...> | - / - | 13 | Partial capture |
| 07-07 01:13 | 20m | +7 / - | <...> | - / - | 4 | Partial capture |
| 07-07 01:03 | 20m | +2 / - | VC3F | - / -5 | 3 | Partial capture |
| 07-06 22:11 | 20m | +4 / - | K1SM | - / -13 | 3 | ✓ Closing fragment |
| 07-06 18:26 | 20m | -5 / -2 | ER3CT | -15 / -17 | 9 | Partial capture |
| 07-06 18:14 | 20m | +2 / - | KF0YOB | - / - | 2 | Partial capture |
| 07-06 18:09 | 20m | 0 / -1 | OZ9FF | -14 / -4 | 4 | ✓ Full exchange observed |
| 07-06 18:01 | 20m | -6 / - | VC3F | - / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141415 +1 576 DL5YSD DL5YDD JO42 141430 -12 1987 DL5YDD DL5YSD +20 141445 +7 576 DL5YSD DL5YDD R+12 141945 +2 575 <...> DL5YDD (x7)
UTC dB Audio Message 103700 -12 562 N2JA DL5YDD 73 103730 -5 562 UA6YW DL5YDD R-06 (x2) 103930 -3 562 EW6DM DL5YDD JO42 (x2) 104045 -23 1943 DL5YDD EW6DM -18 104100 -8 563 EW6DM DL5YDD R-22 104115 -23 1943 DL5YDD EW6DM RR73 104130 -4 562 EW6DM DL5YDD 73 112245 -3 562 KB3DQI DL5YDD JO42 (x3) 134900 -3 562 N1IG DL5YDD JO42 (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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