DK8ZZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK8ZZ, decoded by SO8OO in southeastern Poland. 963 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-11.
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 963 FT8 messages attributed to DK8ZZ as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (49%), followed by 40 m (38%) and 10 m (12%). Most decodes (58%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-11 05:23 UTC
Observed FT8 message patterns
- Attributed sample
- 963 messages
- Active dates
- 31 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -14 to +4.7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 279, strong (≥ -8 dB) 636.
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 DK8ZZ 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 DK8ZZ
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
- JO30 · 477 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,053 km (approx.)
- Last such locator decoded
- 2026-09-11 05:22 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 | DK8ZZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 05:22 | 40m | +8 / - | SP2ZST | - / -4 | 2 | ✓ Closing fragment |
| 09-11 05:18 | 40m | +3 / - | OZ/KD0NDU | - / 0 | 2 | Partial capture |
| 09-11 05:16 | 40m | +5 / - | N8HRZ | - / -4 | 2 | ✓ Closing fragment |
| 09-11 05:14 | 40m | +6 / - | SM7MDI | - / -11 | 2 | ✓ Closing fragment |
| 09-11 05:13 | 40m | +7 / - | KX8XX | - / -10 | 2 | ✓ Closing fragment |
| 09-11 04:55 | 40m | +14 / - | K5LY | - / -9 | 2 | ✓ Closing fragment |
| 09-11 04:53 | 40m | +7 / - | K4RCW | - / -15 | 2 | ✓ Closing fragment |
| 09-11 04:50 | 40m | +8 / - | N4HFE | - / -11 | 2 | ✓ Closing fragment |
| 09-11 04:49 | 40m | +8 / - | PY8WW | - / -6 | 2 | ✓ Closing fragment |
| 09-11 04:43 | 40m | +8 / - | KW8CW | - / -20 | 5 | ✓ Closing fragment |
| 09-11 04:39 | 40m | +11 / - | HZ1TT | - / -25 | 6 | Partial capture |
| 09-11 04:33 | 40m | +6 / - | KS0USA | - / -17 | 3 | ✓ Closing fragment |
| 09-11 04:31 | 40m | +1 / - | KC3QIS | - / -14 | 3 | Partial capture |
| 09-11 04:26 | 40m | -4 / - | W5ART | - / -19 | 2 | ✓ Closing fragment |
| 09-11 04:24 | 40m | -1 / - | ES1AKOS | - / -22 | 2 | Partial capture |
| 09-11 04:22 | 40m | -4 / - | W5ART | - / -15 | 2 | Partial capture |
| 09-11 04:19 | 40m | - / -7 | IZ8PPI | -20 / - | 4 | Partial capture |
| 09-11 04:18 | 40m | +2 / - | HK3YL | - / -9 | 2 | ✓ Closing fragment |
| 09-11 04:16 | 40m | +1 / - | KD2TDA | - / -7 | 3 | ✓ Closing fragment |
| 09-11 04:12 | 40m | 0 / - | N8OA | - / -19 | 2 | ✓ Closing fragment |
| 09-11 04:10 | 40m | -8 / - | K8RLH | - / -10 | 2 | ✓ Closing fragment |
| 09-11 04:07 | 40m | -8 / - | PY1USK | - / - | 2 | Partial capture |
| 09-11 04:06 | 40m | -16 / -2 | J38DX | 0 / 0 | 4 | ✓ Full exchange observed |
| 09-11 04:03 | 40m | -8 / - | PY1USK | - / - | 2 | Partial capture |
| 08-30 17:21 | 40m | -1 / 0 | OE5ABL | -7 / - | 3 | Partial capture |
| 08-30 17:18 | 40m | 0 / -9 | UA7XA | +1 / - | 4 | ✓ Closing observed |
| 08-30 17:13 | 40m | 0 / - | IZ4AIF | -1 / -3 | 5 | ✓ Full exchange observed |
| 08-30 17:10 | 40m | +3 / -11 | UR5XEJ | -2 / -3 | 4 | Partial capture |
| 08-30 17:05 | 40m | +2 / +3 | DL7UKM | 0 / -2 | 6 | ✓ Full exchange observed |
| 08-30 17:04 | 40m | +4 / - | F4AXK | - / -4 | 2 | ✓ Closing fragment |
| 08-30 17:02 | 40m | +4 / +5 | M0IEP | -12 / +4 | 6 | ✓ Full exchange observed |
| 08-30 17:02 | 40m | +3 / -12 | HF5A | +2 / -1 | 5 | ✓ Full exchange observed |
| 08-30 17:01 | 40m | +6 / +10 | DL1EDR | 0 / -8 | 4 | ✓ Full exchange observed |
| 08-30 17:00 | 40m | +3 / - | R7LC | +6 / -11 | 3 | ✓ Closing observed |
| 08-30 16:56 | 40m | +3 / - | F6FHZ | - / -3 | 3 | Partial capture |
| 08-30 16:55 | 40m | +2 / +4 | IW2CAK | -10 / -1 | 5 | ✓ Full exchange observed |
| 08-30 16:53 | 40m | +2 / +4 | F5LSK | -14 / +1 | 5 | ✓ Full exchange observed |
| 08-30 16:50 | 40m | -2 / - | <...> | - / -8 | 2 | Partial capture |
| 08-30 13:54 | 20m | - / - | II7MGXX | +11 / - | 2 | Partial capture |
| 08-28 08:21 | 10m | -6 / -12 | G4IFX | -10 / -12 | 4 | ✓ Full exchange observed |
| 08-28 08:20 | 10m | -4 / - | SQ6PZL | - / -7 | 2 | ✓ Closing fragment |
| 08-28 08:17 | 10m | -7 / - | DK8MM | - / -5 | 2 | ✓ Closing fragment |
| 08-28 08:15 | 10m | -8 / - | E75C | - / -19 | 3 | ✓ Closing fragment |
| 08-28 08:13 | 10m | -6 / - | MW0DNF | - / -9 | 3 | ✓ Closing fragment |
| 08-28 08:12 | 10m | -6 / - | Z34K | - / - | 2 | ✓ Closing fragment |
| 08-28 08:11 | 10m | -8 / - | 9A2TN | - / - | 2 | Partial capture |
| 08-28 08:09 | 10m | -7 / - | OE1OGU/P | - / -11 | 2 | ✓ Closing fragment |
| 08-28 08:08 | 10m | -9 / - | OE1OGU | - / - | 2 | Partial capture |
| 08-28 08:06 | 10m | -6 / - | IT9CUE | - / -23 | 2 | Partial capture |
| 08-28 08:04 | 10m | - / -6 | HB9TOC | -2 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051500 +6 2295 SM7MDI DK8ZZ RR73 051530 +5 2296 CQ DK8ZZ JO30 051630 +8 2296 N8HRZ DK8ZZ -04 (x2) 051730 +7 2296 CQ DK8ZZ JO30 051830 +1 2295 OZ/KD0NDU DK8ZZ JO30 051845 -19 370 DK8ZZ LA/DM2RM +21 051900 +5 2295 OZ/KD0NDU DK8ZZ R+00 052000 +3 2295 CQ DK8ZZ JO30 (x5) 052230 +9 2295 SP2ZST DK8ZZ -04 (x2)
UTC dB Audio Message 064030 +2 1980 CQ DX DK8ZZ JO30 (x4) 064215 +10 2290 DK8ZZ DK1HZ JN48 (x2) 064300 -1 1979 VK4CME DK8ZZ JO30 (x5) 064745 +6 2290 DK8ZZ DK1HZ JN48 (x2) 135400 +11 826 DK8ZZ II7MGXX +11 (x2)
UTC dB Audio Message 081615 -9 2233 E75C DK8ZZ R-19 (x2) 081715 -6 2201 DK8MM DK8ZZ R-05 (x2) 081815 -12 2201 CQ DK8ZZ JO30 081845 -3 2201 TA7D DK8ZZ JO30 081930 -15 2173 CQ DK8ZZ JO30 a1 082000 -7 2174 SQ6PZL DK8ZZ -07 (x2) 082100 -5 2173 CQ DK8ZZ JO30 082130 -4 2173 G4IFX DK8ZZ JO30 082145 -10 2655 DK8ZZ G4IFX -12 082200 -4 2173 G4IFX DK8ZZ R-12 (x2) 112745 -13 1077 DK8ZZ CS8ABF +19
UTC dB Audio Message 191215 -1 1274 OJ0JR DK8ZZ -02 191230 +9 378 DK8ZZ OJ0JR R+03 191245 +3 1274 OJ0JR DK8ZZ RR73 191300 +7 378 DK8ZZ RR73; DK2BK <...> +02 190815 -4 1965 II7MGXX DK8ZZ JO30 (x2)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee