DK8HC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK8HC, decoded by SO8OO in southeastern Poland. 9,797 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 94 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-05.
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 9,797 FT8 messages attributed to DK8HC as the transmitting token by decoded message structure across 94 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (32%) and 10 m (5%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-05 02:29 UTC
Observed FT8 message patterns
- Attributed sample
- 9,797 messages
- Active dates
- 94 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -12 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 173, moderate (-15 to -9 dB) 3,267, strong (≥ -8 dB) 6,357.
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 DK8HC 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 DK8HC
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
- JO42 · 7,645 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 934 km (approx.)
- Last such locator decoded
- 2026-10-05 02:29 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 | DK8HC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-05 02:28 | 80m | +6 / - | R3DBX | - / - | 4 | Partial capture |
| 10-05 02:25 | 80m | +4 / - | CT2GQA | - / - | 3 | Partial capture |
| 10-05 02:19 | 80m | +4 / - | K6UFO | - / - | 3 | Partial capture |
| 10-05 02:15 | 80m | -2 / -3 | DO3NN | +7 / -12 | 4 | ✓ Full exchange observed |
| 10-05 02:06 | 80m | +4 / - | F4PCM | - / - | 3 | Partial capture |
| 10-05 02:01 | 80m | +3 / - | SV4BHA | - / - | 5 | Partial capture |
| 10-05 01:47 | 80m | -2 / - | G0WZM | - / - | 3 | Partial capture |
| 10-05 01:42 | 80m | -5 / - | EA1DGT | - / - | 4 | Partial capture |
| 10-05 01:38 | 80m | -1 / - | ON8FAB | - / - | 3 | Partial capture |
| 10-05 01:30 | 80m | -3 / -5 | UA3RBM | +3 / - | 6 | ✓ Closing observed |
| 10-05 01:23 | 80m | +3 / -5 | G7OOD | -2 / - | 8 | Partial capture |
| 10-05 01:15 | 80m | +6 / -9 | RA6SA | +8 / -4 | 5 | ✓ Full exchange observed |
| 10-05 01:09 | 80m | +6 / - | WF2A | - / - | 5 | Partial capture |
| 10-05 01:00 | 80m | +1 / +1 | DL4SVA | +18 / -10 | 5 | ✓ Full exchange observed |
| 10-05 00:46 | 80m | +5 / - | F5UKW | - / - | 5 | Partial capture |
| 10-05 00:44 | 80m | +1 / -10 | IU5SCG | -4 / - | 9 | Partial capture |
| 10-05 00:36 | 80m | +3 / - | I1JQJ | - / - | 5 | Partial capture |
| 10-05 00:18 | 80m | 0 / - | AB3AH | - / - | 5 | Partial capture |
| 10-05 00:13 | 80m | 0 / -10 | G0GFC | -2 / - | 3 | ✓ Closing observed |
| 10-05 00:10 | 80m | +2 / - | R4HHN | - / - | 4 | Partial capture |
| 10-05 00:07 | 80m | +8 / - | RZ4M | - / - | 2 | Partial capture |
| 10-05 00:03 | 80m | +5 / -12 | RW3VX | -2 / -12 | 5 | ✓ Full exchange observed |
| 10-04 23:54 | 80m | +5 / -6 | DJ4MM | +16 / - | 8 | Partial capture |
| 10-04 23:46 | 80m | +8 / - | F4GOH | - / - | 4 | Partial capture |
| 10-04 23:33 | 80m | +4 / - | DJ4MM | - / - | 5 | Partial capture |
| 10-04 23:04 | 80m | 0 / - | TM47CDXC | - / - | 5 | Partial capture |
| 10-04 23:01 | 80m | -3 / - | DG3DBP | - / - | 5 | Partial capture |
| 10-04 22:40 | 80m | -3 / -18 | TA4SSK | -10 / -12 | 7 | ✓ Full exchange observed |
| 10-04 22:32 | 80m | 0 / -7 | DO5RRS | +9 / - | 4 | ✓ Closing observed |
| 10-04 22:28 | 80m | +3 / - | HF50HSP | - / - | 4 | Partial capture |
| 10-04 22:26 | 80m | +8 / - | G0ORC | +14 / -4 | 6 | ✓ Closing observed |
| 10-04 22:23 | 80m | +6 / - | ON8FAB | - / - | 5 | Partial capture |
| 10-04 22:21 | 80m | +4 / - | RZ4M | - / - | 5 | Partial capture |
| 10-04 22:16 | 80m | 0 / - | HF50HSP | - / - | 2 | Partial capture |
| 10-04 22:13 | 80m | +2 / -4 | SQ5JRE | +8 / - | 9 | Partial capture |
| 10-04 22:11 | 80m | 0 / -13 | HA4MDE | +5 / -10 | 5 | ✓ Full exchange observed |
| 10-04 22:11 | 80m | - / -10 | OE6LQD | -4 / - | 2 | Partial capture |
| 10-04 22:07 | 80m | +3 / - | OE6LQD | - / - | 3 | Partial capture |
| 10-04 22:03 | 80m | +7 / - | EA5JKT | - / - | 5 | Partial capture |
| 10-04 21:59 | 80m | +5 / - | DH1TS | +2 / -14 | 5 | ✓ Closing observed |
| 10-04 21:54 | 80m | 0 / - | SP4JSR | - / - | 5 | Partial capture |
| 10-04 21:48 | 80m | +4 / - | 9A7KWS | -1 / -23 | 4 | ✓ Closing observed |
| 10-04 21:46 | 80m | +6 / - | OH1NDA | - / - | 5 | Partial capture |
| 10-04 21:43 | 80m | +4 / +2 | M6JAY | -18 / -10 | 6 | ✓ Full exchange observed |
| 10-04 21:39 | 80m | 0 / - | UA4FET | - / - | 5 | Partial capture |
| 10-04 21:36 | 80m | -4 / -20 | RV6AVU | +7 / -13 | 7 | ✓ Full exchange observed |
| 10-04 21:32 | 80m | -8 / +2 | DK9PH | +4 / - | 8 | Partial capture |
| 10-04 21:30 | 80m | -4 / -9 | I8IGS | 0 / -14 | 7 | ✓ Full exchange observed |
| 10-04 21:27 | 80m | -1 / - | OZ8ZN | - / - | 5 | Partial capture |
| 10-04 21:21 | 80m | +6 / - | DA1EA | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 020730 +1 565 F4PCM DK8HC JO42 021500 -2 564 DO3NN DK8HC JO42 021515 +3 564 DK8HC DO3NN -03 021530 -1 564 DO3NN DK8HC R-12 021545 +11 564 DK8HC DO3NN RR73 021930 +1 565 K6UFO DK8HC JO42 (x3) 022500 +3 565 CT2GQA DK8HC JO42 (x3) 022800 +6 566 R3DBX DK8HC JO42 (x4)
UTC dB Audio Message 213900 -8 632 IV3CTT DK8HC RR73 213915 -8 632 DK8HC IV3CTT 73 214215 -7 631 OD5VB DK8HC JO42 (x2) 214915 -6 630 SP9NVY DK8HC R-14 (x2) 215715 -10 629 EA1B DK8HC JO42 (x3) 145715 -15 1248 DK8HC DG6VC -17 163730 -13 638 SQ4KDF DK8HC R-20 163930 -12 638 SP4R DK8HC JO42 164400 -10 638 UR5EH DK8HC JO42 130045 -8 1760 DK8HC CS7CDZ -02 (x2)
UTC dB Audio Message 183515 +3 1328 DK8HC ON4AEO -25 183530 -11 598 F4NJZ DK8HC JO42 183545 +3 1329 DK8HC ON4AEO -25 183600 -11 598 OZ5BAL DK8HC JO42 (x4) 183930 -7 598 DF6PB DK8HC JO42 (x2) 184230 -2 598 M3WBS DK8HC JO42 (x2) 184530 -3 598 SM7IUN DK8HC JO42 (x2) 185030 -11 598 HB9ZHK DK8HC JO42 185230 -6 598 SP9DPI DK8HC JO42
UTC dB Audio Message 195000 -3 1873 DK8HC 9A4ZM JN86
UTC dB Audio Message 182745 +3 2575 DK8HC M0YWA -16 (x4) 190445 -4 2474 DK8HC F5PEG -09 (x2) 192745 +6 699 DK8HC DL7HS -19 (x9)
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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