JA5ALE — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA5ALE, decoded by SO8OO in southeastern Poland. 53 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-18.
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 53 FT8 messages attributed to JA5ALE 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 (98%), followed by 40 m (2%). 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 strong S/N range (79%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-09-18 21:15 UTC
Observed FT8 message patterns
- Attributed sample
- 53 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -12 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 42.
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 JA5ALE in decoded directed-looking exchanges:
Most frequent locator attributed to JA5ALE
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 · 53 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,565 km (approx.)
- Last such locator decoded
- 2026-09-18 21:15 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 | JA5ALE S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 21:10 | 40m | - / -25 | IZ0DXD | -20 / - | 4 | Partial capture |
| 09-18 21:08 | 40m | - / -10 | IZ5IMD | +2 / - | 3 | ✓ Closing fragment |
| 08-02 22:08 | 20m | - / -6 | 4L7T | -2 / - | 2 | ✓ Closing fragment |
| 07-24 22:07 | 20m | - / -7 | EA8UP | -1 / - | 2 | ✓ Closing fragment |
| 07-09 21:52 | 20m | - / -16 | EC3A | -10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220330 -12 528 JA5ALE TN8GD -07 210830 +1 2215 JA5ALE IZ5IMD JN53 (x3) 211000 -16 2255 JA5ALE IZ0DXD JN63 (x4) 211545 -8 2993 RI1FJZ JA5ALE PM74 211730 -11 1539 JA5ALE F4FSG JN29
UTC dB Audio Message 215230 -12 1800 JA5ALE EC3A -16 (x2) 220700 -2 1764 JA5ALE EA8UP -07 (x2) 220815 +1 345 JA5ALE 4L7T -06 (x2)
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