KC4DB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KC4DB, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 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 22 FT8 messages attributed to KC4DB as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 22 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -18 to -10 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 14, 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 KC4DB in decoded directed-looking exchanges:
Most frequent locator attributed to KC4DB
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
- EM84 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,079 km (approx.)
- Last such locator decoded
- 2026-08-27 04:44 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 | KC4DB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 04:46 | 20m | - / - | IZ0MIO | -20 / - | 2 | Partial capture |
| 08-27 04:45 | 20m | -14 / - | HK4OK | - / +1 | 3 | ✓ Closing fragment |
| 08-27 04:41 | 20m | -14 / - | IZ4JMA | - / -1 | 2 | ✓ Closing fragment |
| 08-27 04:38 | 20m | -16 / -22 | RA3FY | +11 / -4 | 7 | ✓ Full exchange observed |
| 08-27 04:37 | 20m | - / - | RC5F | +2 / - | 4 | Partial capture |
| 08-27 04:35 | 20m | - / -15 | R6TA | +4 / - | 10 | Partial capture |
| 08-27 04:32 | 20m | - / - | RA3FY | +15 / - | 5 | Partial capture |
| 08-27 04:32 | 20m | - / -15 | RK9UE | +2 / - | 4 | ✓ Closing fragment |
| 08-27 04:30 | 20m | -13 / -6 | F1PBZ | +6 / +1 | 4 | ✓ Full exchange observed |
| 08-27 04:29 | 20m | -10 / - | UT7UJ | - / +3 | 2 | ✓ Closing fragment |
| 08-27 04:29 | 20m | - / - | RD4AM | -4 / - | 4 | Partial capture |
| 08-27 04:28 | 20m | -10 / - | DK1MAX | - / +3 | 2 | ✓ Closing fragment |
| 08-27 04:28 | 20m | - / - | RA4LAG | -10 / - | 4 | Partial capture |
| 08-27 04:26 | 20m | - / -11 | R3KCW | -11 / - | 3 | ✓ Closing fragment |
| 08-27 04:26 | 20m | - / - | RZ4FWA | -5 / - | 3 | Partial capture |
| 08-27 04:24 | 20m | - / - | RA3FY | +12 / - | 7 | Partial capture |
| 08-27 04:21 | 20m | -15 / -16 | DL3MIB | -2 / -12 | 9 | ✓ Full exchange observed |
| 08-27 04:19 | 20m | -16 / - | RI1FJL | -14 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 003100 -9 2321 KC4DB MI7XHT IO64
UTC dB Audio Message 044030 +5 1766 KC4DB RA3FY R-22 044045 -16 827 RA3FY KC4DB RR73 044130 +1 826 KC4DB F4LNM JN09 044145 -14 827 IZ4JMA KC4DB -01 (x2) 044345 -19 827 CQ KC4DB EM84 (x3) 044500 -10 827 KC4DB RC6OX KN88 044515 -16 827 HK4OK KC4DB R+01 (x2) 044600 -22 941 KC4DB IZ0MIO JN61 044615 -12 827 HK4OK KC4DB 73 044630 -19 941 KC4DB IZ0MIO JN61 044630 -14 1904 KC4DB IK4JPP JN54
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