KK4CDK — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving KK4CDK, decoded by SO8OO in southeastern Poland. 338 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 45 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-19.
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 338 FT8 messages attributed to KK4CDK as the transmitting token by decoded message structure across 45 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 60 m (29%) and 40 m (28%). Most decodes (98%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-19 01:48 UTC
Observed FT8 message patterns
- Attributed sample
- 338 messages
- Active dates
- 45 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -19 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 70, moderate (-15 to -9 dB) 129, strong (≥ -8 dB) 139.
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 KK4CDK in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to KK4CDK
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
- EL95 · 146 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,719 km (approx.)
- Last such locator decoded
- 2026-10-19 01:47 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 | KK4CDK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 01:13 | 60m | - / -6 | EA8AE | -14 / - | 2 | ✓ Closing fragment |
| 10-22 01:01 | 40m | - / -14 | EA5XA | -9 / - | 4 | ✓ Closing fragment |
| 10-22 01:01 | 40m | - / - | EB2EMZ | -16 / - | 2 | Partial capture |
| 10-22 00:46 | 40m | - / - | EB2EMZ | -16 / - | 3 | Partial capture |
| 10-22 00:44 | 40m | - / -14 | IT9ELM | -14 / - | 2 | ✓ Closing fragment |
| 10-21 23:28 | 60m | - / -14 | GI5RPG | +8 / - | 2 | ✓ Closing fragment |
| 10-20 02:03 | 60m | - / -16 | 9A7V | +2 / - | 2 | ✓ Closing fragment |
| 10-19 01:50 | 40m | - / - | R2AL | -8 / - | 2 | Partial capture |
| 10-19 01:48 | 40m | -12 / - | SP5MIG | - / - | 2 | ✓ Closing fragment |
| 10-19 01:47 | 40m | - / -8 | F1PBZ | +10 / - | 3 | Partial capture |
| 10-19 01:45 | 40m | - / - | R2AL | -8 / - | 3 | Partial capture |
| 10-19 01:44 | 40m | -22 / -11 | RW3QU | +9 / -16 | 5 | ✓ Full exchange observed |
| 10-19 01:42 | 40m | - / -5 | CT2HEX | -15 / - | 5 | ✓ Closing fragment |
| 10-19 01:39 | 40m | -12 / - | PC2J | - / -11 | 2 | ✓ Closing fragment |
| 10-19 01:39 | 40m | - / - | DG4SCG | -10 / - | 3 | Partial capture |
| 10-19 01:34 | 40m | -18 / - | DL1RB | - / -16 | 2 | ✓ Closing fragment |
| 10-19 01:27 | 60m | -10 / -7 | S55DX | +10 / -9 | 5 | ✓ Full exchange observed |
| 10-19 01:25 | 60m | -10 / -1 | DL1CF | +3 / -8 | 6 | ✓ Full exchange observed |
| 10-19 01:20 | 60m | -16 / -12 | 9A2TN | -6 / -22 | 5 | ✓ Full exchange observed |
| 10-19 01:14 | 60m | - / -11 | SP5EXA | -8 / - | 3 | ✓ Closing fragment |
| 10-19 01:11 | 60m | - / -12 | LZ936BA | -12 / - | 2 | Partial capture |
| 10-19 00:59 | 40m | - / -17 | IZ8EYN | -12 / - | 2 | Partial capture |
| 10-19 00:56 | 40m | -21 / -15 | EX7CQ | -1 / - | 4 | ✓ Closing observed |
| 10-19 00:55 | 40m | - / - | UA4FKT | 0 / - | 3 | Partial capture |
| 10-19 00:53 | 40m | -7 / -7 | UA6HJT | +4 / - | 5 | ✓ Closing observed |
| 10-16 00:55 | 40m | - / -7 | F5NBU | +14 / - | 4 | ✓ Closing fragment |
| 10-15 02:02 | 40m | -10 / -19 | 4L1FL | -6 / -18 | 7 | ✓ Full exchange observed |
| 10-15 01:54 | 40m | -10 / - | R2EC | - / - | 2 | Partial capture |
| 10-15 01:35 | 40m | - / -4 | ON1JP | -18 / - | 4 | Partial capture |
| 10-15 01:34 | 40m | -18 / - | 3B9FR | - / -18 | 8 | Partial capture |
| 10-15 01:33 | 40m | -18 / - | LZ2II | - / -9 | 2 | ✓ Closing fragment |
| 10-14 01:49 | 60m | - / +7 | DL1LCK | -9 / - | 5 | ✓ Closing fragment |
| 10-09 02:28 | 60m | - / - | PA3DZM | -5 / - | 5 | Partial capture |
| 10-09 02:26 | 60m | -9 / -20 | EI2IXB | -4 / -14 | 4 | Partial capture |
| 10-09 02:26 | 60m | -14 / - | SP4NDY | - / -22 | 2 | ✓ Closing fragment |
| 10-09 02:22 | 60m | -17 / - | E74K | - / -19 | 3 | ✓ Closing fragment |
| 10-09 01:52 | 40m | -16 / - | VE3GLN | - / -6 | 2 | ✓ Closing fragment |
| 10-08 00:51 | 40m | - / -12 | GM6URC | -16 / - | 3 | Partial capture |
| 10-08 00:43 | 40m | -13 / - | RZ6L | - / -19 | 2 | ✓ Closing fragment |
| 10-08 00:39 | 40m | -14 / - | J48S | - / - | 4 | ✓ Closing fragment |
| 10-04 02:42 | 60m | -5 / - | Z61DX | - / -19 | 3 | ✓ Closing fragment |
| 10-04 02:29 | 60m | -14 / - | 9T0MD | - / -15 | 2 | Partial capture |
| 10-03 22:42 | 60m | -22 / - | 9T0MD | - / - | 2 | Partial capture |
| 10-01 23:03 | 40m | +1 / - | RD3FY | - / -18 | 2 | ✓ Closing fragment |
| 10-01 22:59 | 40m | -2 / -9 | RA3ZH | +3 / -14 | 8 | ✓ Full exchange observed |
| 10-01 22:58 | 40m | -2 / -12 | OH3JF | +1 / -18 | 6 | ✓ Full exchange observed |
| 09-26 03:44 | 60m | -10 / - | OE5DML | - / -19 | 3 | ✓ Closing fragment |
| 09-26 03:44 | 60m | -12 / -1 | IK1WGX | -7 / -6 | 7 | ✓ Full exchange observed |
| 09-26 03:40 | 60m | -12 / - | AC9HP | - / -21 | 3 | ✓ Closing fragment |
| 09-26 03:40 | 60m | -14 / +2 | DL8TV | -4 / -10 | 8 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 012700 +10 936 KK4CDK S55DX -07 012700 -1 2458 KK4CDK DL1CF 73 012730 +10 936 KK4CDK S55DX -07 012745 -11 936 S55DX KK4CDK R-09 012800 +11 936 KK4CDK S55DX RR73 012815 -10 935 S55DX KK4CDK 73 012915 -17 1494 CQ DX KK4CDK EL95 005630 -7 605 KK4CDK P4/WE9V -01 005700 -5 605 KK4CDK RR73; KZ4NS <...> -02 020330 +2 1464 KK4CDK 9A7V R-16 (x2) 232800 +6 853 KK4CDK GI5RPG R-14 (x2) 011330 -14 1309 KK4CDK EA8AE -06 (x2)
UTC dB Audio Message 015000 -9 1012 KK4CDK R2AL KO85 (x2) 004415 -13 1668 KK4CDK IT9ELM R-14 (x2) 004645 -8 2536 KK4CDK F1PBZ -11 004645 -16 1859 KK4CDK EB2EMZ IN83 (x3) 005215 -21 1556 KK4CDK YY5EHT R-02 010115 -16 2122 KK4CDK EB2EMZ IN83 010115 -8 2790 KK4CDK EA5XA IM98 010215 -16 2122 KK4CDK EB2EMZ IN83 010215 -8 2789 KK4CDK EA5XA IM98 (x3)
UTC dB Audio Message 015345 -13 1356 EP5TJS KK4CDK EL95 (x3) 092045 -12 2057 KK4CDK F5LSU R-09 (x2) 092115 -7 1805 KK4CDK DL4JG JO31 (x3) 100400 -7 1726 KK4CDK UT7UJ -14 (x2) 022330 -22 1590 RK9DO KK4CDK EL95 (x2) 040915 -14 779 VY1IRM KK4CDK EL95 215530 -20 1387 IR7MGGC KK4CDK EL95 213715 -10 1209 VY2SHL KK4CDK 73
UTC dB Audio Message 220700 +13 2045 KK4CDK 9A4ZM JN86 (x3) 013545 -10 1635 KK4CDK SV2KD -14 (x8)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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