JH6RKI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JH6RKI, decoded by SO8OO in southeastern Poland. 13 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 2026-09-15.
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 13 FT8 messages attributed to JH6RKI 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 (69%), followed by 40 m (31%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-15 21:17 UTC
Observed FT8 message patterns
- Attributed sample
- 13 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -12 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 3.
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 JH6RKI in decoded directed-looking exchanges:
Most frequent locator attributed to JH6RKI
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
- PM53 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,425 km (approx.)
- Last such locator decoded
- 2026-09-15 21:16 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 | JH6RKI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 21:06 | 80m | - / -14 | LX1JH | +15 / - | 2 | ✓ Closing fragment |
| 09-15 21:16 | 40m | -10 / - | D2ACE | - / -13 | 3 | ✓ Closing fragment |
| 09-15 20:48 | 80m | - / -19 | OH2NAG | -8 / - | 2 | ✓ Closing fragment |
| 09-15 20:44 | 80m | - / -23 | ON6AA | +4 / - | 3 | ✓ Closing fragment |
| 09-08 19:23 | 80m | - / -22 | UX1AA | +6 / - | 4 | Partial capture |
| 08-23 20:49 | 80m | - / -18 | IK5CHL | +2 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 102800 -24 1909 JH6RKI EY8BL RR73
UTC dB Audio Message 204945 +3 2421 JH6RKI IK5CHL JN53 (x3) 192330 +4 2449 JH6RKI UX1AA KO70 (x4) 204445 +1 1342 JH6RKI ON6AA JO11 (x3) 204815 -12 1628 JH6RKI OH2NAG -19 (x2) 210630 +15 1020 JH6RKI LX1JH -14 (x2) 210730 +20 593 JH6RKI UR1CCT KN69
UTC dB Audio Message 193715 -10 2727 RI1FJZ JH6RKI PM53 211600 -12 2681 D2ACE JH6RKI PM53 (x3)
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