RA1CD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA1CD, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-27.
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 46 FT8 messages attributed to RA1CD as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (72%), followed by 10 m (28%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-08-27 08:17 UTC
Observed FT8 message patterns
- Attributed sample
- 46 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -20 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 21.
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 RA1CD in decoded directed-looking exchanges:
Most frequent locator attributed to RA1CD
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
- KO49 · 28 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-08-27 08:14 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 | RA1CD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 08:16 | 20m | - / - | OS4K | -3 / - | 2 | Partial capture |
| 08-27 08:16 | 20m | +1 / -16 | YO9PH | -8 / -13 | 2 | Partial capture |
| 08-26 07:25 | 20m | -11 / - | RI1FJL | - / - | 7 | Partial capture |
| 08-26 07:17 | 20m | -8 / - | RI1FJL | - / - | 2 | Partial capture |
| 08-26 07:10 | 20m | -12 / - | RI1FJL | - / - | 4 | Partial capture |
| 08-19 07:56 | 10m | - / -22 | LZ2CC | -17 / - | 3 | ✓ Closing fragment |
| 07-29 07:02 | 20m | - / -7 | RN3N | -16 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 071715 -8 2491 RI1FJL RA1CD KO49 (x11) 081630 -8 2019 RA1CD YO9PH -16 081630 +3 1861 RA1CD OS4K +16 081715 +1 2397 YO9PH RA1CD R-13 081730 -9 1861 RA1CD OS4K +16
UTC dB Audio Message 070930 -7 2534 RA1CD <...> -20 075600 -16 1770 RA1CD LZ2CC -22 (x3)
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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