SP3OKU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP3OKU, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-09-08.
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 31 FT8 messages attributed to SP3OKU as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 40 m (42%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +5 dB.
Overview
Bands
Last attributed message: 2026-09-08 05:09 UTC
Observed FT8 message patterns
- Attributed sample
- 31 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- +5 dB
- Estimated 10th-90th percentile
- -7 to +20 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 28.
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 SP3OKU 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 SP3OKU
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
- JO92 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 345 km (approx.)
- Last such locator decoded
- 2026-09-08 05:08 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 | SP3OKU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 05:08 | 80m | +21 / 0 | F4DIA | -18 / -7 | 6 | ✓ Full exchange observed |
| 09-06 08:30 | 40m | -6 / +3 | Z62NS | -18 / -14 | 6 | ✓ Full exchange observed |
| 09-03 05:30 | 40m | +5 / - | KJ5PTH | - / - | 2 | Partial capture |
| 09-03 05:24 | 40m | +1 / - | EW6TW | - / -3 | 3 | ✓ Closing fragment |
| 09-03 05:09 | 80m | +7 / -16 | G0BLB | -20 / -16 | 6 | ✓ Full exchange observed |
| 09-03 05:08 | 80m | +6 / +4 | DO7RMS | -10 / +2 | 5 | ✓ Full exchange observed |
| 09-03 05:07 | 80m | +5 / +2 | DO2NM | -10 / -11 | 5 | ✓ Full exchange observed |
| 09-03 05:05 | 80m | +4 / - | SP3DOF | -4 / +7 | 5 | ✓ Full exchange observed |
| 07-09 04:25 | 80m | +19 / -3 | OE8DDX | +12 / -5 | 5 | ✓ Full exchange observed |
| 07-07 04:45 | 40m | -10 / - | K2L | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 050900 -12 1942 SP3OKU DO7RMS +04 050915 +4 1943 DO7RMS SP3OKU R+02 050930 -9 1942 SP3OKU DO7RMS RR73 050945 +7 1942 DO7RMS SP3OKU 73 051015 +7 1942 G0BLB SP3OKU -16 051130 -21 1839 SP3OKU G0BLB R-16 (x2) 051215 +7 1942 G0BLB SP3OKU RR73 051230 -21 1838 SP3OKU G0BLB 73 050815 +23 698 F4DIA SP3OKU JO92 (x2) 050900 -21 698 SP3OKU F4DIA +00 050915 +21 698 F4DIA SP3OKU R-07 050930 -15 699 SP3OKU F4DIA RR73 050945 +20 698 F4DIA SP3OKU 73
UTC dB Audio Message 044645 -10 1547 K2L SP3OKU JO92 085045 -11 2226 SP3OKU SQ8LE RR73 052430 -9 1936 EW6TW SP3OKU JO92 (x3) 052645 +0 2341 K4YT SP3OKU JO92 052745 +1 1951 K0LLE SP3OKU JO92 053045 +3 741 KJ5PTH SP3OKU JO92 (x2) 083045 -6 1405 Z62NS SP3OKU JO92 (x2) 083130 -20 1406 SP3OKU Z62NS +03 083145 -6 1406 Z62NS SP3OKU R-14 083200 -16 1406 SP3OKU Z62NS RR73 083215 -7 1406 Z62NS SP3OKU 73
UTC dB Audio Message 085315 -20 1134 SP3OKU SY2CWM +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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