F5JIW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F5JIW, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-09-15.
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 25 FT8 messages attributed to F5JIW as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (68%), followed by 40 m (24%) and 80 m (8%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-09-15 21:34 UTC
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -16 to +13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 15.
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 F5JIW 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 F5JIW
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
- JN09 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,491 km (approx.)
- Last such locator decoded
- 2026-09-15 21:34 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 | F5JIW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 21:34 | 40m | +4 / - | 8Z1IT | - / - | 2 | Partial capture |
| 09-15 21:27 | 40m | +3 / -17 | BG0FQU | -20 / -11 | 6 | Partial capture |
| 09-02 21:36 | 80m | -8 / - | UN7LZ | - / - | 2 | Partial capture |
| 08-31 06:45 | 20m | +13 / - | RI1FJL | - / -24 | 6 | Partial capture |
| 08-20 21:46 | 20m | 0 / +8 | XU7O | -6 / -10 | 5 | ✓ Full exchange observed |
| 08-20 21:36 | 20m | -16 / - | DJ0MAB | - / - | 2 | ✓ Closing fragment |
| 08-20 21:33 | 20m | -10 / - | UN0GY | - / +4 | 3 | ✓ Closing fragment |
| 08-17 21:45 | 20m | -21 / - | 8Z1IT | - / -7 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212715 +0 1504 BG0FQU F5JIW JN09 212800 -19 1506 F5JIW BG0FQU -17 (x2) 212845 +8 570 BG0FQU F5JIW R-11 (x3) 213415 +1 1374 8Z1IT F5JIW JN09 (x2)
UTC dB Audio Message 213615 -10 2223 UN7LZ F5JIW JN09 (x2)
UTC dB Audio Message 213630 -15 2181 DJ0MAB F5JIW +12 (x2) 214630 -7 485 F5JIW XU7O +08 (x3) 214945 +0 484 XU7O F5JIW R-10 215100 -8 485 F5JIW XU7O RR73 215115 -13 708 TI2CC F5JIW JN09 215245 -12 709 JF0CSK F5JIW -14 064545 +13 489 RI1FJL F5JIW JN09 (x6)
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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