IU8IZA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU8IZA, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-09-07.
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 IU8IZA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 40 m (25%) and 10 m (17%). Several six-hour UTC windows tied for the largest share (71%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-07 17:15 UTC
Observed FT8 message patterns
- Attributed sample
- 24 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -22 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 18.
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.
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 IU8IZA
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
- JN70 · 20 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,175 km (approx.)
- Last such locator decoded
- 2026-09-07 17:15 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 | IU8IZA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 17:15 | 60m | - / - | OE5DML | -9 / - | 3 | Partial capture |
| 09-07 16:59 | 40m | -8 / - | 9V1PL | - / -13 | 3 | Partial capture |
| 09-02 17:44 | 40m | -7 / - | RI1FJL | - / -17 | 2 | Partial capture |
| 08-28 10:59 | 10m | -21 / - | RI1FJL | - / - | 3 | Partial capture |
| 08-26 09:16 | 20m | +2 / - | RI1FJL | - / -12 | 13 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171500 -17 1059 CQ IU8IZA JN70 a1 171515 -8 2483 IU8IZA OE5DML JN78 (x3)
UTC dB Audio Message 174445 -7 1716 RI1FJL IU8IZA R-17 (x2) 165315 -11 2058 ZL1GT IU8IZA JN70 165900 -8 1766 9V1PL IU8IZA JN70 (x3)
UTC dB Audio Message 105715 -22 1772 RI1FJL IU8IZA JN70 (x4)
UTC dB Audio Message 091645 +8 1872 RI1FJL IU8IZA JN70 (x13) 092400 -9 467 IU8IZA RR73; PA4T <...> -02
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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