SM6LJU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM6LJU, decoded by SO8OO in southeastern Poland. 111 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.
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 111 FT8 messages attributed to SM6LJU as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 160 m (26%) and 40 m (23%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-18 20:35 UTC
Observed FT8 message patterns
- Attributed sample
- 111 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -10 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 87.
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 SM6LJU 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 SM6LJU
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
- JO58 · 65 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,180 km (approx.)
- Last such locator decoded
- 2026-09-18 20:34 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 | SM6LJU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 20:34 | 160m | - / - | RW0AR | -7 / - | 7 | Partial capture |
| 09-18 20:33 | 160m | -10 / -6 | UR5TOK | -10 / -9 | 7 | ✓ Full exchange observed |
| 09-14 19:29 | 160m | -1 / -13 | UY2RA | +2 / +3 | 7 | ✓ Full exchange observed |
| 08-31 22:16 | 80m | -4 / - | LA5VX | - / +6 | 4 | ✓ Closing fragment |
| 08-31 20:18 | 80m | 0 / - | OG2KAJ | - / - | 4 | Partial capture |
| 08-31 20:07 | 80m | +8 / - | SK3GA | - / -10 | 5 | ✓ Closing fragment |
| 08-31 20:01 | 80m | +12 / - | SK3GA | - / -19 | 3 | Partial capture |
| 08-31 19:59 | 80m | 0 / -3 | OH3NAQ | -6 / +4 | 6 | ✓ Full exchange observed |
| 08-31 19:58 | 80m | - / - | DH5YBE | -2 / - | 2 | Partial capture |
| 08-31 19:57 | 80m | -4 / -6 | DK7TX | -3 / -2 | 5 | ✓ Full exchange observed |
| 08-31 19:56 | 80m | 0 / - | OH6QU | +1 / - | 6 | ✓ Full exchange observed |
| 08-31 19:40 | 80m | -7 / -7 | UR4LRG | +2 / -2 | 7 | ✓ Full exchange observed |
| 08-31 19:39 | 80m | -3 / - | OH8CCS | - / +5 | 3 | ✓ Closing fragment |
| 08-27 20:17 | 160m | -6 / +7 | SP2FWC | -2 / +1 | 5 | ✓ Full exchange observed |
| 08-27 20:14 | 160m | -6 / - | MW7GQB | - / -15 | 3 | ✓ Closing fragment |
| 08-27 20:09 | 160m | -4 / - | ES4TIX | - / -24 | 6 | ✓ Closing fragment |
| 08-27 20:05 | 160m | -6 / - | SM5KNV | +4 / - | 5 | ✓ Full exchange observed |
| 08-27 20:04 | 160m | -2 / - | <...> | - / +10 | 2 | Partial capture |
| 08-27 20:01 | 160m | -7 / -8 | HB9GNH | -14 / -12 | 5 | ✓ Full exchange observed |
| 08-07 19:11 | 40m | -9 / - | 8S7DL | - / - | 16 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203300 -9 1302 UR5TOK SM6LJU JO58 (x3) 203415 -14 1491 SM6LJU UR5TOK -06 203415 -5 869 SM6LJU RW0AR NO66 203430 -6 1302 UR5TOK SM6LJU R-09 203445 -6 1491 SM6LJU UR5TOK RR73 203445 +0 869 SM6LJU RW0AR NO66 203500 -6 1302 UR5TOK SM6LJU 73 203515 +6 2513 SM6LJU UA3ZUX KO90 203515 -6 869 SM6LJU RW0AR NO66 (x5)
UTC dB Audio Message 200130 +11 2321 SK3GA SM6LJU -19 (x7) 201845 -6 1762 OG2KAJ SM6LJU JO58 (x4) 221615 -4 1613 LA5VX SM6LJU JO58 (x4)
UTC dB Audio Message 191215 -6 1716 8S7DL SM6LJU JO58 (x15)
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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