DC1RDB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DC1RDB, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-08.
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 15 FT8 messages attributed to DC1RDB as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 80 m (13%). In this small sample, the estimated median decoder S/N was -4 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-08 03:23 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -4 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 12.
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).
Most frequent locator attributed to DC1RDB
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
- JN58 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 799 km (approx.)
- Last such locator decoded
- 2026-07-08 03:23 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 | DC1RDB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-08 03:21 | 40m | -4 / - | W8ASH | - / - | 2 | Partial capture |
| 07-08 03:11 | 40m | -5 / - | K2B | - / - | 3 | Partial capture |
| 07-08 03:07 | 40m | -2 / - | K2C | - / - | 2 | Partial capture |
| 07-08 03:01 | 40m | -9 / -5 | LB2YJ | -18 / +7 | 3 | Partial capture |
| 07-08 02:07 | 80m | -1 / - | HI8JCD | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025915 -12 2566 OA4ENG DC1RDB R-04 030100 -20 1737 DC1RDB LB2YJ JP32 030115 -9 2566 LB2YJ DC1RDB +07 030130 -17 1736 DC1RDB LB2YJ R-05 030230 -5 2787 K2D DC1RDB JN58 030700 -2 2904 K2C DC1RDB JN58 (x2) 030930 -2 2893 WA3THL DC1RDB JN58 031130 -6 2893 K2B DC1RDB JN58 (x3) 031430 -3 2893 K8BL DC1RDB JN58 032145 -5 2893 W8ASH DC1RDB JN58 (x2) 032300 -4 2893 K2C DC1RDB JN58
UTC dB Audio Message 020700 +7 318 HI8JCD DC1RDB JN58 (x2)
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