DL7ULA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL7ULA, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-09 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 21 FT8 messages attributed to DL7ULA as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (43%), followed by 20 m (38%) and 80 m (19%). Most decodes (62%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-07-13 17:04 UTC
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -20 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 2.
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 DL7ULA 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 DL7ULA
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
- JO62 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 675 km (approx.)
- Last such locator decoded
- 2026-07-13 14:33 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 | DL7ULA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-13 14:31 | 20m | -18 / - | OH8DGV | - / - | 3 | Partial capture |
| 07-13 14:19 | 20m | -19 / - | SP2XRT | - / -10 | 2 | Partial capture |
| 07-10 08:44 | 20m | - / - | UR4QWW | -14 / - | 4 | Partial capture |
| 07-10 05:39 | 40m | -24 / - | ON5HE | -6 / -1 | 5 | ✓ Closing observed |
| 07-10 05:35 | 40m | -15 / - | SM6FZO | - / -18 | 2 | Partial capture |
| 07-10 05:26 | 40m | -14 / - | 5B4AMM | - / -20 | 4 | ✓ Closing fragment |
| 07-09 19:07 | 80m | -16 / -14 | RA2FU | -6 / -13 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084400 -16 1871 DL7ULA UR4QWW KN77 (x4) 141900 -20 1967 SP2XRT DL7ULA -10 (x2) 142230 -20 2084 R0AX DL7ULA -16 142545 -11 848 W7ZR DL7ULA JO62 143145 -20 1079 OH8DGV DL7ULA JO62 (x3) 170445 -1 735 OH8NW DL7ULA -07
UTC dB Audio Message 190730 -17 1031 RA2FU DL7ULA -13 (x2) 190815 -8 1351 DL7ULA RA2FU R-14 190830 -13 1031 RA2FU DL7ULA RR73 190845 -5 1351 DL7ULA RA2FU 73 194700 -7 1134 <LY100RADIO> DL7ULA -12 194715 -10 960 DL7ULA <...> R-10
UTC dB Audio Message 052645 -16 1197 5B4AMM DL7ULA -20 (x4) 053530 -14 816 SM6FZO DL7ULA -18 (x2) 053930 -7 606 DL7ULA ON5HE JO20 053945 -24 1571 ON5HE DL7ULA -01 054030 -4 606 DL7ULA ON5HE 73 (x3) 062215 -10 557 SP2QVX DL7ULA -08 175200 -15 978 RA1AGX DL7ULA -03
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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