SP3CMX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP3CMX, decoded by SO8OO in southeastern Poland. 255 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-07-23.
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 255 FT8 messages attributed to SP3CMX as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 80 m (25%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (75%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-07-23 12:14 UTC
Observed FT8 message patterns
- Attributed sample
- 255 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -20 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 66.
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 SP3CMX 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 SP3CMX
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
- JO72 · 115 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 552 km (approx.)
- Last such locator decoded
- 2026-06-14 14:39 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 | SP3CMX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 13:29 | 20m | - / -13 | AA3B | -8 / - | 2 | ✓ Closing fragment |
| 07-23 11:18 | 20m | -1 / - | VP2MAA | - / -14 | 3 | Partial capture |
| 07-09 05:34 | 80m | +3 / - | OE8DDX | -3 / -12 | 3 | ✓ Closing observed |
| 07-06 12:35 | 40m | -8 / - | M6DDF | - / -10 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 124830 +0 2615 EX8MCD SP3CMX -17 111815 +1 2919 VP2MAA SP3CMX -14 (x4) 113445 -13 769 <YR50NADIA> SP3CMX -11 132945 -6 2550 SP3CMX AA3B R-13 (x2)
UTC dB Audio Message 121400 -13 584 <...> SP3CMX -10
UTC dB Audio Message 123530 -7 934 M6DDF SP3CMX -10 (x2) 053130 -16 1341 <...> SP3CMX -12 045545 -10 947 SP3CMX SV7BAY R+05
UTC dB Audio Message 053445 -3 502 OE8DDX SP3CMX -12 (x2) 053530 -3 502 SP3CMX OE8DDX 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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