IU2UBU — 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 IU2UBU, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-31.
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 60 FT8 messages attributed to IU2UBU 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 (45%), followed by 80 m (30%) and 40 m (15%). Several six-hour UTC windows tied for the largest share (78%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (73%); the estimated median was -19 dB.
Overview
Bands
Last attributed message: 2026-08-31 20:36 UTC
Observed FT8 message patterns
- Attributed sample
- 60 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -19 dB
- Estimated 10th-90th percentile
- -24 to -12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 1.
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 IU2UBU in decoded directed-looking exchanges:
Most frequent locator attributed to IU2UBU
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
- JN45 · 20 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-06-20 21:14 UTC
Other locator fields attributed to this token: JN63 (13).
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 | IU2UBU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-24 16:08 | 40m | - / -12 | F1UNR | -15 / - | 2 | Partial capture |
| 08-31 20:35 | 20m | -15 / - | EA8AT | - / - | 2 | Partial capture |
| 08-31 20:34 | 20m | -11 / - | PE1NGW | - / - | 2 | Partial capture |
| 08-31 20:25 | 20m | -18 / -21 | M1DBW | -7 / -14 | 5 | ✓ Full exchange observed |
| 08-31 20:16 | 20m | -19 / -16 | EA8AT | -2 / -7 | 8 | Partial capture |
| 08-31 20:04 | 20m | -16 / - | OZ7DR | - / - | 2 | Partial capture |
| 08-31 19:53 | 60m | -22 / -6 | OE6HLF | -4 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 160815 -15 2230 IU2UBU F1UNR -12 (x2)
UTC dB Audio Message 201845 -4 1849 IU2UBU EA8AT -16 201930 -18 1844 EA8AT IU2UBU R-07 (x2) 202500 -18 1719 M1DBW IU2UBU JN63 202515 -6 1619 IU2UBU M1DBW -21 (x2) 202600 -18 1719 M1DBW IU2UBU R-14 202715 -4 1619 IU2UBU M1DBW RR73 203200 -15 477 XW4KV IU2UBU R-14 203230 -18 1866 HB9IOB IU2UBU JN63 203330 -20 1866 OZ7DR IU2UBU JN63 203400 -13 1867 PE1NGW IU2UBU JN63 (x2) 203530 -13 1844 EA8AT IU2UBU JN63 (x2)
UTC dB Audio Message 194430 -19 1205 CQ IU2UBU JN63 194515 -9 1332 IU2UBU SM7XON -18 195030 -21 1548 CQ IU2UBU JN63 195330 -22 1540 OE6HLF IU2UBU JN63 195345 -2 1543 IU2UBU OE6HLF -06 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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