DL3SDV — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DL3SDV, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-10-21.
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 7 FT8 messages attributed to DL3SDV 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 (71%), followed by 10 m (29%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-21 12:39 UTC
Observed FT8 message patterns
- Attributed sample
- 7 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -21 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.
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 DL3SDV
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
- JN49 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 920 km (approx.)
- Last such locator decoded
- 2026-10-21 12:34 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 | DL3SDV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 12:37 | 40m | -21 / - | PD4RJ | - / -16 | 3 | Partial capture |
| 10-21 12:35 | 40m | - / - | HB9CEX | -1 / - | 5 | Partial capture |
| 10-21 12:35 | 40m | -21 / -11 | HA7TM | +5 / -8 | 5 | Partial capture |
| 09-23 11:02 | 40m | - / +4 | DK7ZT | -17 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 110230 -17 1907 DL3SDV DK7ZT +04 123445 -21 1837 CQ DL3SDV JN49 123500 +4 1837 DL3SDV HA7TM JN97 123530 -1 793 DL3SDV HB9CEX JN47 123530 +5 1837 DL3SDV HA7TM JN97 123545 -21 1837 HA7TM DL3SDV -08 123600 -4 793 DL3SDV HB9CEX JN47 123600 +5 1837 DL3SDV HA7TM R-11 123630 +1 794 DL3SDV HB9CEX JN47 123630 +5 1837 DL3SDV HA7TM R-11 123700 -1 793 DL3SDV HB9CEX JN47 123715 -22 1837 PD4RJ DL3SDV -16 123730 -1 793 DL3SDV HB9CEX JN47 123745 -23 1837 PD4RJ DL3SDV -16 (x2)
UTC dB Audio Message 141115 -24 1926 LU7LRP DL3SDV JN49 141245 -15 1300 LU8GCJ DL3SDV JN49
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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