IU2SMN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU2SMN, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 160m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-10.
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 14 FT8 messages attributed to IU2SMN as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (50%), followed by 160 m (29%) and 40 m (21%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-10 18:45 UTC
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 7, 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 IU2SMN in decoded directed-looking exchanges:
Most frequent locator attributed to IU2SMN
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 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-09-10 18:43 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 | IU2SMN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-10 18:43 | 60m | -14 / -17 | 4X5EF | -14 / -10 | 5 | ✓ Full exchange observed |
| 09-10 18:38 | 60m | -18 / - | EW6PG | - / - | 2 | Partial capture |
| 09-06 07:50 | 40m | - / - | UT4PA | -2 / - | 3 | Partial capture |
| 09-06 07:49 | 40m | - / - | DF1BN | -4 / - | 4 | Partial capture |
| 09-06 07:47 | 40m | - / - | SP6FME | -6 / - | 2 | Partial capture |
| 09-06 07:45 | 40m | - / 0 | DH5BM | -11 / - | 2 | Partial capture |
| 09-06 07:43 | 40m | - / +2 | F1HFP | -12 / - | 6 | ✓ Closing fragment |
| 09-06 07:43 | 40m | - / - | SP6FME | -6 / - | 2 | Partial capture |
| 08-28 20:27 | 160m | - / - | 9A4AA | -12 / - | 2 | ✓ Closing fragment |
| 08-28 20:23 | 160m | - / +5 | 9A4AA | -10 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183800 -18 1533 EW6PG IU2SMN JN45 (x2) 184345 -17 1533 4X5EF IU2SMN JN45 184430 -13 1988 IU2SMN 4X5EF -17 184445 -14 1534 4X5EF IU2SMN R-10 184500 -15 1988 IU2SMN 4X5EF RR73 184515 -10 1533 4X5EF IU2SMN 73
UTC dB Audio Message 074515 -11 2129 IU2SMN F1HFP JN28 (x2) 074545 -12 1541 IU2SMN DH5BM R+00 074615 -10 2129 IU2SMN F1HFP 73 074645 -10 1541 IU2SMN DH5BM R+00 074730 -20 1540 CQ IU2SMN JN45 a1 074745 -4 1540 IU2SMN SP6FME JO90 (x2) 074945 -4 1726 IU2SMN DF1BN JN68 075015 -4 1540 IU2SMN UT4PA KO20 075015 -4 1727 IU2SMN DF1BN JN68 075045 +1 1540 IU2SMN UT4PA KO20 (x2) 075145 -4 1727 IU2SMN DF1BN JN68 (x2)
UTC dB Audio Message 202315 -12 1018 IU2SMN 9A4AA +05 (x6)
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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