RA4LW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA4LW, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-15 and 2026-09-19.
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 42 FT8 messages attributed to RA4LW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 160 m (38%) and 40 m (2%). Most decodes (62%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-09-19 17:26 UTC
Observed FT8 message patterns
- Attributed sample
- 42 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -24 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 1.
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.
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 RA4LW
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
- LO44 · 38 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,908 km (approx.)
- Last such locator decoded
- 2026-09-19 17:24 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 | RA4LW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 17:26 | 160m | - / - | RA3PN | -12 / - | 2 | Partial capture |
| 09-19 17:24 | 160m | -18 / - | 3Z100PKP | - / -14 | 4 | Partial capture |
| 09-19 17:03 | 160m | - / - | RA3PN | -6 / - | 2 | Partial capture |
| 09-19 17:02 | 160m | - / -1 | R2SDZ | +4 / - | 3 | Partial capture |
| 09-19 17:00 | 160m | - / -10 | R2DRE | -18 / - | 5 | Partial capture |
| 09-19 17:00 | 160m | -13 / - | LZ936BA | - / - | 6 | Partial capture |
| 09-19 17:00 | 160m | - / -5 | RT2P | -9 / - | 5 | Partial capture |
| 09-17 19:10 | 160m | - / - | RK4FD | 0 / - | 5 | Partial capture |
| 09-17 19:03 | 160m | -10 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-17 15:25 | 80m | -11 / - | RI1FJZ | - / -7 | 3 | Partial capture |
| 09-16 00:21 | 80m | - / - | RA3WPF | -5 / - | 3 | Partial capture |
| 09-16 00:14 | 80m | -24 / - | RI1FJZ | - / - | 6 | Partial capture |
| 09-15 23:58 | 80m | -18 / - | RI1FJZ | - / - | 16 | Partial capture |
| 09-15 17:04 | 40m | - / - | R6DZR | +2 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 170300 -12 1497 RA4LW RT2P -05 170300 +4 2096 RA4LW R2SDZ -01 170300 -13 1404 LZ936BA RA4LW LO44 170315 -17 1775 RA4LW R2DRE -06 170330 -9 1497 RA4LW RT2P -05 170345 -6 1308 RA4LW RA3PN KO84 170345 -19 1775 RA4LW R2DRE -09 170445 -6 1308 RA4LW RA3PN KO84 172430 -17 1632 3Z100PKP RA4LW LO44 (x4) 172615 -4 1037 RA4LW RA3BY KO75 172645 -12 1463 RA4LW RA3PN KO84 (x2)
UTC dB Audio Message 000645 -19 2091 RI1FJZ RA4LW LO44 (x9) 002100 -4 1730 RA4LW RA3WPF KO81 (x3) 152545 -10 1655 RI1FJZ RA4LW LO44 (x3)
UTC dB Audio Message 165500 +13 2796 RA4LW R2EC KO82 165515 -17 2693 RI1FJZ RA4LW LO44 170430 +1 1280 RA4LW R6DZR KN84 (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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