SM0CXS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM0CXS, decoded by SO8OO in southeastern Poland. 61 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-08 and 2026-09-20.
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 61 FT8 messages attributed to SM0CXS as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (69%), followed by 40 m (16%) and 80 m (15%). Most decodes (100%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-09-20 19:04 UTC
Observed FT8 message patterns
- Attributed sample
- 61 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -11 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 46.
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 SM0CXS 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 SM0CXS
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
- JO99 · 35 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,078 km (approx.)
- Last such locator decoded
- 2026-09-20 19:04 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 | SM0CXS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 19:01 | 160m | -2 / - | R6DCF | - / - | 5 | Partial capture |
| 09-20 16:11 | 80m | -3 / - | RI1FJZ | - / -13 | 9 | Partial capture |
| 09-19 20:55 | 160m | -4 / - | C31CT | - / - | 3 | Partial capture |
| 09-19 20:49 | 160m | -11 / - | C31CT | - / - | 8 | Partial capture |
| 09-19 20:39 | 160m | -18 / -7 | EA1CQ | -22 / -14 | 5 | ✓ Full exchange observed |
| 09-19 20:38 | 160m | -3 / -10 | UA3IDQ | -15 / +3 | 4 | ✓ Full exchange observed |
| 09-19 20:16 | 160m | -9 / - | RA9YTI | -24 / -10 | 4 | ✓ Closing observed |
| 09-19 19:44 | 160m | -13 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-19 18:58 | 160m | -1 / - | US2YW | +9 / -2 | 4 | Partial capture |
| 09-19 18:57 | 160m | +2 / -16 | R8DX | -19 / - | 2 | ✓ Closing observed |
| 09-19 18:46 | 160m | -1 / - | R2DRE | - / +1 | 2 | Partial capture |
| 09-19 18:45 | 160m | 0 / +7 | OK1DXR | +9 / - | 4 | ✓ Closing observed |
| 09-19 18:44 | 160m | - / -9 | R2EA/P | -8 / - | 2 | ✓ Closing fragment |
| 09-18 19:15 | 160m | -10 / - | UA9CMN | - / 0 | 2 | ✓ Closing fragment |
| 09-18 19:11 | 160m | -8 / -25 | JA6MWW | -22 / -17 | 9 | ✓ Full exchange observed |
| 09-08 15:29 | 40m | -2 / - | YB2TTM | - / - | 7 | Partial capture |
| 09-08 15:24 | 40m | +1 / - | VJ6X | -17 / -5 | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204930 -19 1859 C31CT SM0CXS JO99 (x10) 190115 -1 1347 R6DCF SM0CXS JO99 (x5)
UTC dB Audio Message 161145 +4 1240 RI1FJZ SM0CXS JO99 (x9)
UTC dB Audio Message 152400 +0 1778 VJ6X SM0CXS JO99 (x2) 152445 -17 2489 SM0CXS VJ6X RR73 152500 -1 1778 VJ6X SM0CXS 73 152900 -7 1778 YB2TTM SM0CXS JO99 (x7)
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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