IK4JPK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IK4JPK, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-08-31.
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 IK4JPK as the transmitting token by decoded message structure across 2 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
- 2 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) 3, strong (≥ -8 dB) 7.
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 IK4JPK in decoded directed-looking exchanges:
Most frequent locator attributed to IK4JPK
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
- JN54 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,013 km (approx.)
- Last such locator decoded
- 2026-08-31 18:54 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 | IK4JPK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 18:56 | 20m | - / -18 | F4NBB | +5 / - | 4 | Partial capture |
| 08-31 18:52 | 20m | - / -18 | F4NBB | +5 / - | 5 | Partial capture |
| 08-31 18:49 | 20m | +14 / -10 | YO4NF | +1 / - | 3 | ✓ Full exchange observed |
| 08-20 10:22 | 20m | -15 / -2 | 9A1CCB | -9 / -8 | 3 | Partial capture |
| 08-20 10:22 | 20m | - / - | DL3MIB | +7 / - | 7 | Partial capture |
| 08-20 10:20 | 20m | - / - | DL7FE | -6 / - | 2 | Partial capture |
| 08-20 10:15 | 20m | -12 / - | PD3LKN | -10 / -2 | 4 | ✓ Closing observed |
| 08-18 10:33 | 10m | - / -1 | DO1ID | -2 / - | 4 | ✓ Closing fragment |
| 08-18 10:32 | 10m | - / - | DL0FTT | -16 / - | 5 | Partial capture |
| 08-18 10:24 | 10m | - / -16 | DK7ZT | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185015 +12 814 YO4NF IK4JPK 73 185145 +5 814 CQ IK4JPK JN54 185200 -10 2542 IK4JPK IQ4JO JN63 185200 +1 813 IK4JPK F4NBB -18 185215 +5 814 BG4UVR IK4JPK -19 185230 +3 813 IK4JPK F4NBB -18 (x4) 185415 +7 814 CQ IK4JPK JN54 185445 +6 814 EA7DNE IK4JPK -08 185630 +9 814 IK4JPK F4NBB -18 (x4)
UTC dB Audio Message 102400 -15 831 IK4JPK DK7ZT -16 (x2) 103230 -11 1269 IK4JPK DL0FTT JO32 (x2) 103330 +3 458 IK4JPK DO1ID JO41 103330 -18 1269 IK4JPK DL0FTT JO32 103400 +1 458 IK4JPK DO1ID JO41 103400 -18 1269 IK4JPK DL0FTT JO32 103430 -7 458 IK4JPK DO1ID R-01 103430 -19 1269 IK4JPK DL0FTT JO32 103500 -4 458 IK4JPK DO1ID 73
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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