IK4RUX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IK4RUX, decoded by SO8OO in southeastern Poland. 463 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-09-14.
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 463 FT8 messages attributed to IK4RUX 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 (92%), followed by 40 m (8%). Most decodes (76%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -3.3 dB.
Overview
Bands
Last attributed message: 2026-09-14 20:39 UTC
Observed FT8 message patterns
- Attributed sample
- 463 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -3.3 dB
- Estimated 10th-90th percentile
- -15 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 323.
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 IK4RUX in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to IK4RUX
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 · 329 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,013 km (approx.)
- Last such locator decoded
- 2026-09-14 20:33 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 | IK4RUX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 20:35 | 40m | -6 / +1 | EA8UP | 0 / 0 | 4 | ✓ Full exchange observed |
| 09-14 20:30 | 40m | -10 / - | BD8FOD | - / - | 7 | Partial capture |
| 08-25 22:01 | 20m | - / -13 | LU1FIV | 0 / - | 2 | Partial capture |
| 08-25 21:44 | 20m | - / -10 | KC1ZWW | +3 / - | 6 | Partial capture |
| 08-25 21:40 | 20m | - / -19 | K1SM | -4 / - | 2 | ✓ Closing fragment |
| 08-23 11:39 | 20m | - / - | DL7ARV | +2 / - | 7 | Partial capture |
| 08-22 17:52 | 20m | -4 / - | XU7O | - / -12 | 2 | Partial capture |
| 08-22 17:50 | 20m | - / -10 | R9AL | -14 / - | 2 | Partial capture |
| 08-22 17:37 | 20m | +4 / -11 | 4Z5NZ | -10 / -3 | 4 | ✓ Full exchange observed |
| 08-22 17:31 | 20m | +1 / - | RA0QK/8 | - / -13 | 7 | Partial capture |
| 08-22 17:22 | 20m | -5 / - | JG1KWO | - / -5 | 3 | Partial capture |
| 08-22 17:20 | 20m | -2 / - | BG0EJN | - / -1 | 3 | ✓ Closing fragment |
| 08-22 17:15 | 20m | +1 / - | BG0EJN | - / - | 2 | Partial capture |
| 08-22 17:13 | 20m | +4 / - | BA8BLK | - / -8 | 3 | ✓ Closing fragment |
| 08-22 17:10 | 20m | +2 / - | 4I1LCT | - / -15 | 3 | ✓ Closing fragment |
| 08-22 17:08 | 20m | -1 / - | BV7RR | - / -14 | 3 | ✓ Closing fragment |
| 08-22 17:04 | 20m | -6 / -4 | 4X5PB | -13 / -5 | 6 | ✓ Full exchange observed |
| 08-22 17:01 | 20m | -10 / - | 7Z1BH | - / -16 | 2 | Partial capture |
| 08-22 17:00 | 20m | -6 / - | 9M2HUS | - / -4 | 2 | ✓ Closing fragment |
| 08-22 16:54 | 20m | -1 / - | BU2FW | - / -4 | 3 | ✓ Closing fragment |
| 08-22 16:52 | 20m | +1 / - | EX7CQ | - / -22 | 3 | ✓ Closing fragment |
| 08-22 16:51 | 20m | 0 / - | BD8ELZ | - / -9 | 3 | ✓ Closing fragment |
| 08-22 16:49 | 20m | +5 / -7 | BG7BVI | -18 / -3 | 5 | ✓ Full exchange observed |
| 08-22 16:46 | 20m | +6 / - | UB0SMX/P | - / -5 | 3 | ✓ Closing fragment |
| 08-22 16:45 | 20m | -9 / - | 5B4ARQ | - / -7 | 2 | ✓ Closing fragment |
| 08-22 16:43 | 20m | +1 / - | BG0DAP | - / - | 2 | Partial capture |
| 08-22 16:41 | 20m | -3 / - | XU7O | - / - | 3 | Partial capture |
| 08-22 16:40 | 20m | -4 / - | BD8SN | - / - | 2 | Partial capture |
| 08-22 16:38 | 20m | -9 / - | YB7FII | - / -5 | 4 | ✓ Closing fragment |
| 08-22 16:34 | 20m | -7 / - | UN6GO | - / -10 | 2 | ✓ Closing fragment |
| 08-22 16:32 | 20m | 0 / - | UB0SMX/P | - / - | 3 | Partial capture |
| 08-22 16:24 | 20m | 0 / - | IU4PPL | - / -5 | 6 | ✓ Closing fragment |
| 08-22 16:17 | 20m | -3 / - | OD5ZZ | - / -6 | 12 | ✓ Closing fragment |
| 08-22 16:11 | 20m | -8 / - | BG0DAP | - / - | 5 | Partial capture |
| 08-22 08:41 | 20m | - / -4 | TA7D | -13 / - | 4 | Partial capture |
| 08-22 08:35 | 20m | +2 / - | TI5RR | - / - | 2 | Partial capture |
| 08-22 08:32 | 20m | - / -16 | TI5RR | -14 / - | 2 | Partial capture |
| 08-22 08:25 | 20m | +15 / - | UN7BDZ | - / -16 | 3 | Partial capture |
| 08-22 08:19 | 20m | +6 / - | UF4S/P | - / -16 | 6 | Partial capture |
| 08-22 08:17 | 20m | +4 / - | RA9YTI | - / -8 | 4 | ✓ Closing fragment |
| 08-22 08:15 | 20m | +2 / - | VK5GR | - / - | 2 | Partial capture |
| 08-22 08:11 | 20m | +4 / - | RW0SR | - / -11 | 3 | ✓ Closing fragment |
| 08-22 08:09 | 20m | +7 / - | VK5GR | - / - | 3 | Partial capture |
| 08-22 08:07 | 20m | +7 / - | R8CGO | - / -4 | 3 | ✓ Closing fragment |
| 08-22 08:04 | 20m | +5 / - | RU0AX | - / -9 | 5 | ✓ Closing fragment |
| 08-22 07:49 | 20m | +6 / - | RA9YTI | - / - | 3 | Partial capture |
| 08-22 07:46 | 20m | +9 / - | RU0AX | - / - | 3 | Partial capture |
| 08-22 07:43 | 20m | +11 / - | TA7TC | - / -17 | 3 | ✓ Closing fragment |
| 08-22 07:39 | 20m | +4 / - | UA9YHA | - / - | 2 | Partial capture |
| 08-22 07:37 | 20m | +11 / - | VK2SOL | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194130 -13 2273 RX9WM IK4RUX R-26 (x3) 203045 -8 2160 BD8FOD IK4RUX JN54 (x7) 203500 -4 2381 IK4RUX EA8UP +01 203515 -9 2160 EA8UP IK4RUX R+00 203530 +3 2381 IK4RUX EA8UP RR73 203545 -4 2160 EA8UP IK4RUX 73 203900 -1 2160 BI4IWL IK4RUX 73
UTC dB Audio Message 114115 +4 2081 IK4RUX DL7ARV JO62 (x4) 120400 -17 1114 IK4RUX M0PFX JO01 214000 -4 2362 IK4RUX K1SM -19 (x2) 214400 +3 2838 IK4RUX KC1ZWW -10 (x6) 220145 -2 2673 IK4RUX LU1FIV -13 (x2)
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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