IU0SZP — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU0SZP, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-07-20.
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 24 FT8 messages attributed to IU0SZP 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 (67%), followed by 20 m (33%). In this small sample, the estimated median decoder S/N was -6 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-20 18:13 UTC
Observed FT8 message patterns
- Attributed sample
- 24 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -15 to -2 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 16.
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 IU0SZP in decoded directed-looking exchanges:
Most frequent locator attributed to IU0SZP
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
- JN61 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-07-20 18:13 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 | IU0SZP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-01 03:44 | 40m | - / -13 | PE1NPS | -16 / - | 5 | Partial capture |
| 06-30 12:58 | 20m | -14 / - | KF0YOB | - / - | 3 | Partial capture |
| 06-30 12:47 | 20m | -14 / - | <...> | - / 0 | 3 | Partial capture |
| 06-27 15:42 | 20m | - / -11 | SP6AXW | 0 / - | 4 | Partial capture |
| 06-19 03:06 | 40m | -4 / - | N4QS | - / -3 | 4 | ✓ Closing fragment |
| 06-19 03:00 | 40m | -6 / -4 | F5PBG | -11 / -6 | 11 | ✓ Full exchange observed |
| 06-19 02:58 | 40m | -4 / - | WA6GXQ | - / -11 | 3 | Partial capture |
| 06-19 02:57 | 40m | -4 / - | SM7RHI | - / -3 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 030315 -11 1395 IU0SZP F5PBG -02 030330 -4 1344 F5PBG IU0SZP R-06 030345 -10 1395 IU0SZP F5PBG RR73 030400 -6 1344 F5PBG IU0SZP 73 030630 -4 1344 N4QS IU0SZP JN61 (x4) 030900 -5 1342 HA8TI IU0SZP JN61 031100 +2 1341 N2TH IU0SZP JN61 034400 -16 2435 IU0SZP PE1NPS JO22 (x5)
UTC dB Audio Message 153830 -12 790 IU0SZP EA3HMM JN00 (x2) 154200 -6 1190 IU0SZP SP6AXW R-11 (x4) 124730 -16 1030 <...> IU0SZP JN61 (x3) 124915 -24 1427 IU0SZP F5IXN JN23 125815 -15 1030 KF0YOB IU0SZP JN61 (x3) 181145 -13 893 BG7BVI IU0SZP JN61 181345 -16 893 IW9FRA IU0SZP JN61
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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