JA4IXI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA4IXI, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-09-19.
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 18 FT8 messages attributed to JA4IXI 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 (89%), followed by 40 m (11%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-19 21:17 UTC
Observed FT8 message patterns
- Attributed sample
- 18 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -19 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 3, 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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with JA4IXI in decoded directed-looking exchanges:
Most frequent locator attributed to JA4IXI
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
- PM64 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,453 km (approx.)
- Last such locator decoded
- 2026-08-27 12:44 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 | JA4IXI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 21:17 | 40m | -20 / - | EB5AL | - / -12 | 2 | Partial capture |
| 09-19 21:16 | 40m | - / - | IU4PPL | -2 / - | 2 | Partial capture |
| 09-19 21:15 | 40m | - / -12 | CN8NS | -10 / - | 2 | ✓ Closing fragment |
| 09-19 21:14 | 40m | - / - | EB5AL | 0 / - | 2 | Partial capture |
| 08-27 12:39 | 20m | -19 / - | N4SV | - / -19 | 2 | Partial capture |
| 08-27 11:40 | 20m | - / - | VE3GLN | -11 / - | 4 | Partial capture |
| 08-27 11:28 | 20m | -15 / - | NL8F | - / - | 2 | Partial capture |
| 08-27 11:23 | 20m | - / -16 | OS4K | -12 / - | 4 | Partial capture |
| 08-27 11:16 | 20m | - / -15 | R4FDW | -5 / - | 8 | Partial capture |
| 07-21 21:20 | 20m | -18 / - | TU5MM | - / - | 8 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 211400 +0 2335 JA4IXI EB5AL IM99 (x2) 211530 -10 1886 JA4IXI CN8NS -12 (x2) 211630 -2 1062 JA4IXI IU4PPL JN54 (x2) 211715 -20 1063 EB5AL JA4IXI -12 (x2)
UTC dB Audio Message 112445 -10 1860 JA4IXI OS4K -16 112830 -18 2524 NL8F JA4IXI PM64 (x2) 114015 -8 2831 JA4IXI VE3GLN FN25 (x3) 114230 -10 3027 JA4IXI KB1VFU RRR 114315 -14 2832 JA4IXI VE3GLN FN25 123500 -18 2271 AC5L JA4IXI R-14 123700 -20 2271 WB0IWG JA4IXI PM64 123930 -19 2270 N4SV JA4IXI PM64 (x2) 124400 -19 2270 K4KWZ JA4IXI PM64 130030 -8 1903 JA4IXI RW4Z -14 130400 -21 2366 JA4IXI WA8NLX -13
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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