IU2JYV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU2JYV, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-08-22.
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 IU2JYV as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (79%) fell within the six-hour window 11:00-17:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (79%); the estimated median was -18 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 24 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -23 to -13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 5, 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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with IU2JYV 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 IU2JYV
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 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-08-22 09:02 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 | IU2JYV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-22 09:00 | 10m | -19 / - | SV2TCC | - / - | 4 | Partial capture |
| 08-07 11:36 | 10m | -17 / - | <...> | - / -1 | 4 | Partial capture |
| 08-01 16:31 | 10m | -18 / - | EI7GSB | - / -7 | 3 | Partial capture |
| 08-01 16:29 | 10m | -19 / - | CT7AUT | - / - | 2 | Partial capture |
| 08-01 15:46 | 10m | -16 / - | HA2KF | - / -10 | 3 | ✓ Closing fragment |
| 07-26 14:04 | 10m | -20 / - | ER5DX | - / - | 2 | ✓ Closing fragment |
| 07-26 14:02 | 10m | -16 / - | ZS6MGM | - / - | 4 | Partial capture |
| 07-25 19:41 | 10m | - / +2 | GJ0KYZ | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162915 -18 1834 CT7AUT IU2JYV JN45 (x2) 163100 -16 1834 EI7GSB IU2JYV R-07 (x3) 113645 -18 1842 <...> IU2JYV JN45 (x3) 113930 -19 1997 IU2JYV LZ4VR KN13 113945 -16 1841 <...> IU2JYV JN45 090045 -24 1851 SV2TCC IU2JYV JN45 (x4) 090515 -23 1847 SV4DCQ IU2JYV R-12
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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