JR1AIB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JR1AIB, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 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 49 FT8 messages attributed to JR1AIB as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). 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 moderate S/N range (71%); the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-09-15 21:21 UTC
Observed FT8 message patterns
- Attributed sample
- 49 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -15 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 35, 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 JR1AIB in decoded directed-looking exchanges:
Most frequent locator attributed to JR1AIB
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
- PM95 · 32 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,693 km (approx.)
- Last such locator decoded
- 2026-08-20 20:06 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 | JR1AIB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 16:39 | 160m | - / - | OH5KNL | -10 / - | 4 | Partial capture |
| 09-20 19:37 | 80m | - / -14 | LY3KI | +15 / - | 2 | ✓ Closing fragment |
| 09-01 19:55 | 40m | - / - | IU1DOF | -1 / - | 2 | Partial capture |
| 09-01 19:53 | 40m | - / - | RT2H | +6 / - | 4 | Partial capture |
| 08-22 08:20 | 10m | - / -19 | SV9MBL | -16 / - | 2 | Partial capture |
| 08-20 20:06 | 40m | -10 / - | F8KIC/P | - / -12 | 2 | Partial capture |
| 07-21 20:26 | 20m | -7 / - | TU5MM | - / - | 6 | Partial capture |
| 07-21 20:22 | 20m | -11 / - | TU5MM | - / - | 5 | Partial capture |
| 07-17 20:58 | 40m | - / -19 | OK2SPZ | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 163900 -4 2556 JR1AIB OH5KNL KP30 (x4)
UTC dB Audio Message 193745 +17 1640 JR1AIB LY3KI -14 (x2)
UTC dB Audio Message 203100 -13 1624 JR1AIB RA6YDX LN04 200645 -11 2976 F8KIC/P JR1AIB PM95 (x2) 195330 +4 2680 JR1AIB RT2H KO84 (x4) 195530 -1 926 JR1AIB IU1DOF JN34 195530 -18 1062 JR1AIB HF40BLP -19 195630 -1 926 JR1AIB IU1DOF JN34 195930 +0 792 JR1AIB RA4HG -19 200100 +6 2937 JR1AIB LY1DY -12 212030 +8 2540 JR1AIB ON6AA JO11 212145 -9 335 RI1FJZ JR1AIB R-19 212400 +16 2540 JR1AIB ON6AA JO11
UTC dB Audio Message 082015 -18 1574 JR1AIB SV9MBL -19 (x2)
UTC dB Audio Message 201400 -16 926 ER3BN JR1AIB PM95 202200 -13 2336 TU5MM JR1AIB PM95 (x11) 115700 -9 508 JR1AIB DL9IQ JO40
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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