DL7SL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL7SL, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-07-05.
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 52 FT8 messages attributed to DL7SL 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 (96%), followed by 20 m (4%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-07-05 16:10 UTC
Observed FT8 message patterns
- Attributed sample
- 52 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -12 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 25.
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 DL7SL in decoded directed-looking exchanges:
Most frequent locator attributed to DL7SL
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 · 38 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 675 km (approx.)
- Last such locator decoded
- 2026-07-05 16:10 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 | DL7SL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-05 16:07 | 40m | -8 / - | IN3LHF | - / +1 | 2 | ✓ Closing fragment |
| 07-05 16:07 | 40m | - / 0 | DL0HAM | -8 / - | 6 | Partial capture |
| 07-04 16:03 | 40m | -6 / - | DK7UY | -9 / -16 | 3 | ✓ Closing observed |
| 07-04 16:02 | 40m | -5 / - | HA3GX | - / +2 | 2 | ✓ Closing fragment |
| 07-04 16:01 | 40m | - / -18 | DK7ZT | -20 / - | 3 | Partial capture |
| 07-04 15:57 | 40m | - / -4 | YL3ATH | -8 / - | 2 | Partial capture |
| 07-04 15:54 | 40m | - / +7 | OE7CST | -2 / - | 4 | ✓ Closing fragment |
| 07-03 15:55 | 40m | -6 / - | F1IQH | - / - | 2 | Partial capture |
| 07-03 15:48 | 40m | -7 / - | LA1HW | - / -1 | 3 | ✓ Closing fragment |
| 07-03 09:03 | 10m | - / -2 | EA3ACQ | -8 / - | 2 | ✓ Closing fragment |
| 07-03 08:01 | 20m | - / -5 | EA8AT | -13 / - | 3 | Partial capture |
| 07-03 08:01 | 20m | - / - | F4HSB | -18 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 161815 -4 769 CQ DL7SL JO62 (x6) 160730 -7 2059 DL7SL DL0HAM +00 160745 -9 770 IN3LHF DL7SL R+01 160800 -9 2059 DL7SL DL0HAM +00 160815 -8 770 IN3LHF DL7SL 73 160830 -8 2059 DL7SL DL0HAM +00 (x4) 161045 -12 770 CQ DL7SL JO62
UTC dB Audio Message 085430 -7 820 DL7SL F4LNM JN09 090330 -11 821 DL7SL EA3ACQ -02 (x2)
UTC dB Audio Message 080100 -18 2149 DL7SL F4HSB JN37 (x2) 080130 -14 985 DL7SL EA8AT R-05 (x3) 081700 -14 807 DL7SL PD1HPB R-03 082245 -13 808 UT4PA DL7SL 73 082315 -9 808 CQ DL7SL JO62
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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