IU7DEK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU7DEK, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-08-23.
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 39 FT8 messages attributed to IU7DEK as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (72%), followed by 10 m (28%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (62%); the estimated median was -18 dB.
Overview
Bands
Last attributed message: 2026-08-23 15:09 UTC
Observed FT8 message patterns
- Attributed sample
- 39 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -24 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 6.
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 IU7DEK in decoded directed-looking exchanges:
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 IU7DEK
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
- JM99 · 20 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,181 km (approx.)
- Last such locator decoded
- 2026-08-23 15:08 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 | IU7DEK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 15:05 | 20m | -16 / - | PE1KGX | - / -5 | 3 | ✓ Closing fragment |
| 08-23 13:48 | 20m | - / -24 | IN3WZS | -13 / - | 5 | Partial capture |
| 08-23 13:25 | 20m | +1 / -14 | EN35UKR | -14 / -10 | 5 | Partial capture |
| 08-23 13:22 | 20m | - / -14 | EN35UKR | -12 / - | 2 | Partial capture |
| 08-16 15:24 | 10m | -21 / - | IS0AAS | - / +4 | 2 | ✓ Closing fragment |
| 08-16 15:19 | 10m | -21 / - | DJ3HW | - / -10 | 2 | Partial capture |
| 07-26 17:47 | 40m | - / - | HA7FT | -12 / - | 2 | Partial capture |
| 07-26 17:29 | 20m | -20 / +3 | 4Z4DA | -8 / +1 | 3 | Partial capture |
| 07-26 17:01 | 20m | -20 / +4 | F1PPH | -9 / +7 | 7 | ✓ Full exchange observed |
| 07-26 16:36 | 10m | -23 / - | <...> | - / +1 | 2 | Partial capture |
| 07-26 16:06 | 20m | -12 / - | YO5LNX/P | - / -18 | 2 | Partial capture |
| 07-26 16:01 | 20m | -12 / -1 | YO4GIY | -2 / - | 5 | Partial capture |
| 07-26 15:57 | 20m | -14 / - | IK2XYA | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 132845 +0 1878 EN35UKR IU7DEK JM99 (x2) 134830 -10 1869 IU7DEK IN3WZS -24 (x3) 135230 -3 1877 IZ5IIN IU7DEK JM99 135300 -12 1869 IU7DEK IN3WZS -24 (x2) 142915 -13 1475 IU7DEK IU1DXU +08 150545 -14 1878 PE1KGX IU7DEK JM99 (x3) 150845 -17 1878 CQ IU7DEK JM99 150915 -13 1878 SP6FME IU7DEK +02 151000 -16 2034 IU7DEK JA1GRM PM95
UTC dB Audio Message 155315 -16 992 IU7DEK ON4MGV -07 163615 -24 1891 <...> IU7DEK JM99 (x2) 151945 -19 1891 DJ3HW IU7DEK R-10 (x2) 152045 -24 1890 PP5DCM IU7DEK JM99 152145 -21 1890 IS0AAS IU7DEK JM99 (x3) 152545 -23 1890 DJ3HW IU7DEK R-13 152645 -21 1891 GJ0KYZ IU7DEK JM99 134345 -24 1895 <...> IU7DEK JM99
UTC dB Audio Message 174730 -13 1833 IU7DEK RY7G R-12 174730 -14 2203 IU7DEK HA7FT JN97 (x2)
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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