IZ1UJM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ1UJM, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-25.
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 IZ1UJM as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (67%), followed by 10 m (25%) and 40 m (8%). Most decodes (81%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-08-25 07:21 UTC
Observed FT8 message patterns
- Attributed sample
- 52 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -22 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 9.
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 IZ1UJM in decoded directed-looking exchanges:
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 | IZ1UJM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-25 07:22 | 20m | - / -6 | II7MGXX | +8 / - | 2 | Partial capture |
| 08-25 06:42 | 40m | - / - | IU3VQA | -20 / - | 2 | ✓ Closing fragment |
| 07-17 07:28 | 20m | -16 / - | SP9TTX | - / -11 | 2 | ✓ Closing fragment |
| 07-06 07:17 | 40m | - / -5 | OK1ACE | -8 / - | 3 | Partial capture |
| 06-24 07:17 | 20m | -24 / -2 | YU4EA | -18 / - | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 071800 -19 1414 IZ1UJM YU4EA R-02 071815 -24 1414 YU4EA IZ1UJM RR73 (x2) 071930 -24 1818 <...> IZ1UJM -08 075100 -14 1150 DG9FDM IZ1UJM RR73 075215 -5 609 <...> IZ1UJM -03 072845 -17 843 SP9TTX IZ1UJM -11 (x2) 073730 -13 807 R4ML IZ1UJM -10 071700 -8 2021 IR7MGGC IZ1UJM +15 071915 -10 782 II7MGXX IZ1UJM -05 072115 -12 1498 <...> IZ1UJM -12 072200 +6 783 IZ1UJM II7MGXX R-06 (x2) 072530 +7 2104 IZ1UJM II7MGBT R-10
UTC dB Audio Message 071715 -8 931 IZ1UJM OK1ACE R-05 (x3) 064230 -22 1742 IZ1UJM IU3VQA R+19 (x2) 065415 -24 1439 IZ1UJM PD4HC R+06
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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