SP3IMM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP3IMM, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-14 and 2026-08-05.
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 25 FT8 messages attributed to SP3IMM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -19 dB
- Estimated 10th-90th percentile
- -22 to -17 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with SP3IMM in decoded directed-looking exchanges:
Most frequent locator attributed to SP3IMM
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
- JO92 · 17 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 345 km (approx.)
- Last such locator decoded
- 2026-08-05 10:27 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 | SP3IMM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-05 10:28 | 40m | -22 / - | PD4TK | - / -13 | 2 | ✓ Closing fragment |
| 07-14 11:59 | 40m | -20 / - | PA3FUJ | - / - | 2 | ✓ Closing fragment |
| 07-14 11:46 | 40m | -22 / - | PD5FK | - / -3 | 3 | Partial capture |
| 07-14 10:33 | 40m | -17 / - | M6PKV | - / -16 | 4 | ✓ Closing fragment |
| 07-14 10:28 | 40m | -18 / +2 | UT4PA | -17 / -1 | 12 | ✓ Full exchange observed |
| 07-14 10:23 | 40m | -19 / - | IQ4JO | - / - | 3 | Partial capture |
| 07-14 10:22 | 40m | -20 / - | SP5HWB | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 103130 -19 1604 UT4PA SP3IMM RR73 103330 -16 1604 M6PKV SP3IMM JO92 (x4) 114615 -21 1604 PD5FK SP3IMM JO92 (x3) 114900 -21 1604 UT4PA SP3IMM JO92 115945 -21 1603 PA3FUJ SP3IMM JO92 (x2) 102530 -18 2005 DL5WP SP3IMM JO92 102730 -23 1941 CQ SP3IMM JO92 102800 -22 1941 PD4TK SP3IMM -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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