JF1KML — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JF1KML, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-13.
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 10 FT8 messages attributed to JF1KML 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 (100%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -5 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) 1, strong (≥ -8 dB) 9.
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 JF1KML in decoded directed-looking exchanges:
Most frequent locator attributed to JF1KML
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 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,693 km (approx.)
- Last such locator decoded
- 2026-06-13 19:46 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 | JF1KML S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-15 19:42 | 20m | - / -14 | ON1JP | -8 / - | 2 | Partial capture |
| 08-15 19:37 | 20m | - / -18 | PD4DX | -11 / - | 2 | Partial capture |
| 08-15 19:35 | 20m | - / -14 | CR5VP | -10 / - | 2 | ✓ Closing fragment |
| 08-08 07:07 | 20m | - / -3 | HI8UD | -6 / - | 2 | ✓ Closing fragment |
| 07-28 15:23 | 20m | - / - | RA3AHN | -13 / - | 2 | Partial capture |
| 07-25 17:17 | 20m | - / - | RL3K | -15 / - | 4 | Partial capture |
| 07-25 17:16 | 20m | - / -13 | GM0SDV | -17 / - | 4 | Partial capture |
| 07-25 17:16 | 20m | - / -22 | OE8PPL | -11 / - | 2 | ✓ Closing fragment |
| 07-25 17:07 | 20m | - / -11 | CN2DX | -6 / - | 2 | ✓ Closing fragment |
| 07-24 19:55 | 20m | - / - | F4IBJ | -2 / - | 4 | Partial capture |
| 07-24 19:54 | 20m | - / -16 | IZ2CPO/QRP | -6 / - | 2 | ✓ Closing fragment |
| 07-19 18:20 | 20m | - / -18 | 7Z1BM | -9 / - | 2 | ✓ Closing fragment |
| 07-18 20:03 | 20m | - / -6 | OK1KKI | +21 / - | 2 | ✓ Closing fragment |
| 07-18 19:55 | 20m | - / -17 | G1EYY | -6 / - | 2 | ✓ Closing fragment |
| 07-18 19:53 | 20m | - / - | DK1MCS | -4 / - | 2 | Partial capture |
| 07-18 19:49 | 20m | - / -7 | SV5BYP | -18 / - | 2 | ✓ Closing fragment |
| 07-18 19:42 | 20m | - / -17 | JY5CG | -14 / - | 2 | ✓ Closing fragment |
| 07-18 17:11 | 20m | - / - | UA6UEU | -9 / - | 2 | Partial capture |
| 06-27 17:42 | 20m | - / -17 | <...> | -13 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171800 -18 2098 JF1KML GM0SDV -13 171830 -12 1084 JF1KML RL3K KO91 (x2) 171900 -17 2098 JF1KML GM0SDV -13 152345 -13 2636 JF1KML RA3AHN KO95 (x2) 190115 -5 444 JF1KML PD1TVN RR73 070715 -7 607 JF1KML HI8UD -03 (x2) 193515 -11 1672 JF1KML CR5VP -14 (x2) 193715 -11 1610 JF1KML PD4DX -18 (x2) 194215 -11 1504 JF1KML ON1JP -14 (x2)
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