IZ4DYX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ4DYX, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-03.
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 8 FT8 messages attributed to IZ4DYX as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was +6 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 8 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +6 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 8.
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).
Most frequent locator attributed to IZ4DYX
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
- JN52 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,170 km (approx.)
- Last such locator decoded
- 2026-09-03 19:39 UTC
Other locator fields attributed to this token: JN54 (1).
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 | IZ4DYX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 19:40 | 40m | +11 / - | <...> | - / +3 | 2 | Partial capture |
| 09-03 19:39 | 40m | +8 / +4 | II7MGML | -5 / - | 3 | Partial capture |
| 09-03 19:36 | 40m | +4 / -1 | II7MGXX | -12 / 0 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193515 +2 1387 II7MGMU IZ4DYX R+02 193630 +6 1607 II7MGXX IZ4DYX JN52 (x2) 193715 -12 1607 IZ4DYX II7MGXX -01 193730 +6 1606 II7MGXX IZ4DYX R+00 193845 -2 1107 IZ4DYX DJ0MAB JN49 193915 +9 1034 II7MGML IZ4DYX JN52 (x2) 194015 +7 944 <...> IZ4DYX JN54 194030 -5 1034 IZ4DYX II7MGML +04 194045 +15 943 <...> IZ4DYX R+03
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