JI3CWI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JI3CWI, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-02.
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 29 FT8 messages attributed to JI3CWI as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 40 m (7%). Several six-hour UTC windows tied for the largest share (93%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-09-02 20:24 UTC
Observed FT8 message patterns
- Attributed sample
- 29 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -13 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 21.
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 JI3CWI in decoded directed-looking exchanges:
Most frequent locator attributed to JI3CWI
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
- PM74 · 21 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,565 km (approx.)
- Last such locator decoded
- 2026-09-02 20:24 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 | JI3CWI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 17:23 | 80m | - / -14 | HA7JTR | +18 / - | 2 | ✓ Closing fragment |
| 08-24 20:45 | 20m | - / - | IZ4EKI | -4 / - | 4 | Partial capture |
| 08-24 20:40 | 20m | - / -3 | D2IM | +2 / - | 2 | ✓ Closing fragment |
| 08-15 20:15 | 20m | - / -17 | MM0GTU | -2 / - | 2 | ✓ Closing fragment |
| 08-10 19:04 | 20m | - / - | HA7NO | -13 / - | 2 | Partial capture |
| 08-10 18:59 | 20m | - / -9 | 9A5E | -8 / - | 3 | ✓ Closing fragment |
| 08-10 18:49 | 20m | - / - | IV3BHD | +2 / - | 4 | Partial capture |
| 08-07 19:33 | 20m | - / -19 | <...> | +4 / - | 2 | Partial capture |
| 08-04 13:52 | 20m | - / - | RV9WF | -6 / - | 2 | Partial capture |
| 07-06 17:46 | 20m | - / - | ON8BB | -16 / - | 2 | Partial capture |
| 06-24 20:30 | 20m | - / - | IU4RWW | 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 172330 +22 2799 JI3CWI HA7JTR -14 (x2)
UTC dB Audio Message 201845 -14 2949 CN8NS JI3CWI PM74 (x2)
UTC dB Audio Message 190000 -5 2207 JI3CWI 9A5E R-09 (x2) 190400 -14 804 JI3CWI HA7NO KN07 (x2) 190915 -11 629 JI3CWI G1ABR -20 201500 -1 873 JI3CWI MM0GTU -17 (x2) 152000 -2 278 JI3CWI M0LAD R-13 204000 -1 2542 JI3CWI D2IM -03 (x2) 204515 -6 1275 JI3CWI IZ4EKI JN54 (x4) 205530 +5 978 JI3CWI II7MGXX -02
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