SP2DDV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP2DDV, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 160m, 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-09-17.
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 SP2DDV as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (86%), followed by 60 m (14%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-17 14:41 UTC
Observed FT8 message patterns
- Attributed sample
- 7 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 3, 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).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with SP2DDV in decoded directed-looking exchanges:
Most frequent locator attributed to SP2DDV
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
- JO83 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 515 km (approx.)
- Last such locator decoded
- 2026-08-31 20:12 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 | SP2DDV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 14:41 | 60m | -19 / -3 | 4U1A | -6 / -6 | 3 | ✓ Full exchange observed |
| 08-31 20:12 | 160m | -15 / -15 | OH3NXW | -9 / +1 | 7 | ✓ Full exchange observed |
| 08-31 20:07 | 160m | -14 / -12 | SP2FWC | -3 / -4 | 4 | ✓ Full exchange observed |
| 08-31 20:03 | 20m | - / -7 | WB2BIN | -18 / - | 2 | Partial capture |
| 08-31 20:00 | 20m | - / -8 | CS8ABF | +8 / - | 2 | ✓ Closing fragment |
| 08-27 10:38 | 20m | - / +2 | PA0ARR | -13 / - | 3 | Partial capture |
| 08-27 10:37 | 20m | - / -1 | F5IXN | -8 / - | 2 | Partial capture |
| 08-27 10:37 | 20m | - / 0 | ON1JP | -9 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 144145 -19 1590 4U1A SP2DDV -06 144200 -5 1650 SP2DDV 4U1A R-03 (x2)
UTC dB Audio Message 200745 -12 903 SP2FWC SP2DDV JO83 200800 -7 904 SP2DDV SP2FWC -12 200815 -16 903 SP2FWC SP2DDV R-04 200830 +1 904 SP2DDV SP2FWC RR73 201230 -11 2085 OH3NXW SP2DDV JO83 201245 -10 2182 SP2DDV OH3NXW -15 201300 -13 2085 OH3NXW SP2DDV R+01 201315 -11 2182 SP2DDV OH3NXW -15 201330 -20 2085 OH3NXW SP2DDV R-02 201345 -7 2182 SP2DDV OH3NXW RR73 201400 -17 2182 OH3NXW SP2DDV 73
UTC dB Audio Message 103715 -8 1413 SP2DDV ON1JP +00 103715 -8 763 SP2DDV F5IXN JN23 103745 -3 1413 SP2DDV ON1JP +00 103745 -9 763 SP2DDV F5IXN R-01 103815 -12 1413 SP2DDV ON1JP +00 103845 -11 762 SP2DDV PA0ARR +02 103845 -14 1413 SP2DDV ON1JP RR73 103915 -14 762 SP2DDV PA0ARR +02 (x2) 200015 +7 1120 SP2DDV CS8ABF -08 (x2) 200315 -18 1424 SP2DDV WB2BIN -07 (x2)
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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