KJ4PRT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KJ4PRT, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-13.
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 6 FT8 messages attributed to KJ4PRT as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (50%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 01:49 UTC
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 2, 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 KJ4PRT in decoded directed-looking exchanges:
Most frequent locator attributed to KJ4PRT
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
- FN42 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,716 km (approx.)
- Last such locator decoded
- 2026-09-13 01:48 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 | KJ4PRT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 01:50 | 40m | - / - | RY7F | +10 / - | 4 | Partial capture |
| 09-13 01:40 | 80m | -18 / - | LU1FP | - / - | 3 | Partial capture |
| 09-13 01:40 | 80m | - / -22 | 7X5CY | -10 / - | 2 | Partial capture |
| 09-13 01:37 | 80m | - / 0 | VP2MAA | -7 / - | 2 | Partial capture |
| 09-08 00:38 | 40m | - / -10 | LZ2KV | +12 / - | 4 | ✓ Closing fragment |
| 09-08 00:35 | 40m | - / +7 | PV8AJ | -11 / - | 2 | ✓ Closing fragment |
| 09-06 02:49 | 40m | - / - | IK0QDM | +3 / - | 5 | Partial capture |
| 09-06 02:49 | 40m | - / - | UB6OFG | +9 / - | 5 | Partial capture |
| 09-06 02:49 | 40m | - / - | F1IQH | +2 / - | 4 | Partial capture |
| 09-06 02:48 | 40m | - / -16 | OK1AMF | -22 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025130 -5 1732 KJ4PRT IK0QDM JN61 003515 -12 1343 KJ4PRT PV8AJ +07 (x2) 003815 +12 953 KJ4PRT LZ2KV -10 (x4) 014730 -22 1546 IZ8DBJ KJ4PRT RR73 014815 -21 1546 KJ4PRT YO4NF -17 014830 -12 501 CQ DX KJ4PRT FN42 014930 -10 501 PC2J KJ4PRT RR73 015015 +7 2274 KJ4PRT RY7F LN04 (x4)
UTC dB Audio Message 013730 -7 996 KJ4PRT VP2MAA +00 (x2) 013830 -12 996 KJ4PRT RR73; K9GWH <...> +06 014030 -9 564 KJ4PRT 7X5CY -22 014045 -16 556 LU1FP KJ4PRT FN42 014100 -12 564 KJ4PRT 7X5CY -22 014115 -17 556 LU1FP KJ4PRT FN42 (x2)
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