IU8RIR — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving IU8RIR, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-03.
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 28 FT8 messages attributed to IU8RIR 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 (96%), followed by 10 m (4%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-08-03 21:21 UTC
Observed FT8 message patterns
- Attributed sample
- 28 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -21 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 10.
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 IU8RIR in decoded directed-looking exchanges:
Most frequent locator attributed to IU8RIR
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
- 2026-08-03 21:21 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 | IU8RIR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-03 13:14 | 10m | - / -17 | CS7CDZ | -16 / - | 3 | ✓ Closing fragment |
| 08-11 21:29 | 20m | - / -12 | EA5HM | -10 / - | 3 | Partial capture |
| 08-11 21:27 | 20m | - / -16 | IU5HIU | -12 / - | 2 | Partial capture |
| 08-08 20:42 | 20m | - / -17 | LU3DLY | -16 / - | 3 | ✓ Closing fragment |
| 08-08 10:42 | 20m | - / -6 | PD3LKN | -15 / - | 3 | Partial capture |
| 08-08 10:17 | 20m | - / -6 | PD0PWH | -16 / - | 3 | Partial capture |
| 08-08 10:15 | 20m | - / - | DL7RAY | -17 / - | 4 | Partial capture |
| 08-08 10:07 | 20m | - / +9 | F1PPH | -17 / - | 3 | ✓ Closing fragment |
| 08-08 10:07 | 20m | - / -9 | PD1ADA | -17 / - | 5 | ✓ Closing fragment |
| 08-03 20:28 | 20m | -14 / - | KE2UK | - / - | 3 | Partial capture |
| 08-03 13:25 | 20m | - / - | DF6WE | -4 / - | 2 | ✓ Closing fragment |
| 08-03 13:19 | 20m | - / -12 | YO5PHL | -8 / - | 2 | Partial capture |
| 08-03 11:41 | 20m | - / +3 | F1PBZ | -15 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 131445 -19 1760 IU8RIR CS7CDZ -17 (x4)
UTC dB Audio Message 101815 -16 2330 IU8RIR PD0PWH JO21 (x2) 102045 -24 1743 IU8RIR PD0WL 73 102045 -20 1613 IU8RIR DG1RMY JO62 104230 -16 941 IU8RIR PD3LKN R-06 (x3) 204230 -17 1220 IU8RIR LU3DLY -17 (x3) 212730 -11 2626 IU8RIR IU5HIU JN53 (x2) 212930 -10 1298 IU8RIR EA5HM IM99 (x3)
CW
No CW receptions recorded for this callsign in the last 30 days.
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