DC8SR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DC8SR, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-03 and 2026-10-04.
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 55 FT8 messages attributed to DC8SR 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 -8 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 55 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -15 to -1 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 30.
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 DC8SR in decoded directed-looking exchanges:
Most frequent locator attributed to DC8SR
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
- JO40 · 38 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 911 km (approx.)
- Last such locator decoded
- 2026-10-04 12:35 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 | DC8SR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-04 12:34 | 40m | -15 / - | S57ACD | - / 0 | 4 | ✓ Closing fragment |
| 10-04 12:24 | 40m | - / -6 | 9A4ZM | -3 / - | 2 | ✓ Closing fragment |
| 10-04 12:18 | 40m | -6 / - | LA8OOA | - / - | 2 | Partial capture |
| 10-04 12:17 | 40m | - / - | 9A4ZM | -6 / - | 2 | Partial capture |
| 10-04 12:16 | 40m | -2 / - | MX0SQC | - / -10 | 2 | Partial capture |
| 10-04 10:50 | 40m | -7 / - | PD2MAC | - / +4 | 3 | ✓ Closing fragment |
| 10-04 10:48 | 40m | -12 / - | PD3JB | - / - | 2 | Partial capture |
| 10-04 10:38 | 40m | -16 / - | PD1SL | - / -9 | 3 | ✓ Closing fragment |
| 10-03 14:14 | 40m | - / -25 | ES6DO | -19 / - | 9 | Partial capture |
| 10-03 14:12 | 40m | +2 / - | RK4PR | - / -24 | 4 | ✓ Closing fragment |
| 10-03 14:04 | 40m | -4 / -10 | E75BO | -18 / -18 | 9 | Partial capture |
| 10-03 14:00 | 40m | -10 / - | RU6FS | - / - | 2 | Partial capture |
| 10-03 13:47 | 40m | -8 / - | OK4RQ | - / - | 17 | Partial capture |
| 09-28 14:08 | 40m | - / - | SP100PKP | -9 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 121600 -2 778 MX0SQC DC8SR JO40 (x2) 121715 -7 773 DC8SR 9A4ZM JN86 (x2) 121800 -4 1430 LA8OOA DC8SR JO40 (x2) 122030 -7 1429 9A4ZM DC8SR +04 122445 -6 721 DC8SR 9A4ZM R-06 (x2) 122800 -10 1430 LA8OOA DC8SR JO40 122830 -16 1864 EB5AFK DC8SR JO40 123430 -14 1627 S57ACD DC8SR JO40 (x4)
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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