DD7DAC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DD7DAC, decoded by SO8OO in southeastern Poland. 210 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-08 and 2026-09-18.
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 210 FT8 messages attributed to DD7DAC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (45%), followed by 20 m (20%) and 40 m (18%). Several six-hour UTC windows tied for the largest share (57%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +1.5 dB.
Overview
Bands
Last attributed message: 2026-09-18 22:36 UTC
Observed FT8 message patterns
- Attributed sample
- 210 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- +1.5 dB
- Estimated 10th-90th percentile
- -8 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 191.
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 DD7DAC 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 DD7DAC
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
- JO31 · 102 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,054 km (approx.)
- Last such locator decoded
- 2026-09-18 22:34 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 | DD7DAC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 22:34 | 40m | -8 / - | VJ6X | - / -16 | 4 | ✓ Closing fragment |
| 09-18 22:05 | 160m | -17 / -15 | UF4S | -6 / -16 | 5 | ✓ Full exchange observed |
| 09-18 21:09 | 160m | -7 / - | S03REC | - / - | 2 | Partial capture |
| 09-18 21:06 | 160m | -20 / -21 | R4GM | -8 / -16 | 6 | ✓ Full exchange observed |
| 09-18 20:57 | 160m | -12 / - | CT2GQA | - / -12 | 2 | ✓ Closing fragment |
| 09-18 20:56 | 160m | - / - | HG9FS | +8 / - | 2 | Partial capture |
| 09-18 20:02 | 40m | +8 / - | VJ6X | - / - | 6 | Partial capture |
| 09-09 19:12 | 160m | -5 / - | SP100PKP | - / +7 | 2 | Partial capture |
| 09-09 19:07 | 160m | +3 / +8 | DF9JL | -14 / 0 | 4 | ✓ Full exchange observed |
| 09-09 18:42 | 80m | +16 / - | UA1CEI/3 | - / - | 4 | Partial capture |
| 08-28 14:38 | 20m | - / -19 | EX7DY | -6 / - | 2 | ✓ Closing fragment |
| 08-28 11:16 | 10m | -7 / - | 3A2MW | - / -23 | 3 | ✓ Closing fragment |
| 08-20 13:08 | 20m | +9 / - | HL5BMX | - / -23 | 3 | ✓ Closing fragment |
| 08-20 13:05 | 20m | +10 / - | 4L1FL | - / -12 | 4 | ✓ Closing fragment |
| 08-20 13:04 | 20m | +9 / - | BA3NZ | - / -21 | 3 | ✓ Closing fragment |
| 08-20 13:03 | 20m | +7 / - | HA7NB | - / -1 | 2 | ✓ Closing fragment |
| 08-20 13:02 | 20m | +4 / +6 | IV3JER | -3 / +3 | 5 | ✓ Full exchange observed |
| 08-20 13:01 | 20m | +8 / - | YO2IS | - / -19 | 2 | ✓ Closing fragment |
| 08-20 12:59 | 20m | +6 / - | IK4TVP | - / - | 2 | ✓ Closing fragment |
| 08-20 12:56 | 20m | +7 / -11 | UA4CQS | -16 / -13 | 5 | ✓ Full exchange observed |
| 08-20 12:54 | 20m | +7 / -6 | EA5HM | -17 / 0 | 8 | ✓ Full exchange observed |
| 08-20 12:51 | 20m | 0 / - | F5LVR | -16 / -6 | 5 | ✓ Closing observed |
| 08-20 12:51 | 20m | +4 / - | F4HSB | -7 / -13 | 6 | Partial capture |
| 08-20 05:51 | 40m | +2 / - | OA4ENG | - / -18 | 3 | ✓ Closing fragment |
| 08-20 05:46 | 40m | 0 / - | V31MA | - / - | 3 | Partial capture |
| 08-20 05:45 | 40m | +2 / - | OK2PKT | - / -7 | 2 | ✓ Closing fragment |
| 08-20 05:44 | 40m | +2 / - | F1JUM | - / +9 | 2 | ✓ Closing fragment |
| 08-20 05:39 | 40m | -4 / -3 | F1IQH | -8 / - | 4 | ✓ Closing observed |
| 08-20 05:32 | 40m | 0 / - | SP5DUJ | - / -16 | 2 | ✓ Closing fragment |
| 08-20 05:31 | 40m | -1 / - | V31MA | - / - | 3 | Partial capture |
| 08-16 07:10 | 10m | +2 / - | 4O7DX | - / - | 4 | Partial capture |
| 08-16 06:49 | 10m | +2 / - | SV7BAY | - / -13 | 2 | ✓ Closing fragment |
| 08-16 05:53 | 80m | +1 / - | EA1DLU | - / - | 2 | Partial capture |
| 08-16 05:51 | 80m | +6 / - | EA1JWG | - / -16 | 4 | ✓ Closing fragment |
| 08-16 05:46 | 80m | -2 / - | IW5DNZ | -7 / -17 | 4 | ✓ Closing observed |
| 08-16 05:45 | 80m | -1 / - | DO6THI | - / -10 | 7 | ✓ Closing fragment |
| 08-16 05:44 | 80m | +1 / - | DL1HDL | -12 / - | 5 | ✓ Closing observed |
| 08-16 05:42 | 80m | +4 / - | OU7M | - / -3 | 2 | ✓ Closing fragment |
| 08-16 05:30 | 80m | +2 / - | G7RAU | - / +3 | 4 | ✓ Closing fragment |
| 08-16 05:20 | 80m | -6 / +4 | DA0OIE | +1 / +4 | 6 | ✓ Full exchange observed |
| 08-16 05:18 | 80m | -7 / - | DA0LH | +12 / - | 5 | ✓ Closing observed |
| 08-16 05:16 | 80m | -5 / - | MW7TTA | - / -21 | 4 | ✓ Closing fragment |
| 08-16 05:00 | 80m | +3 / - | W9FEZ | - / - | 2 | Partial capture |
| 08-16 04:55 | 80m | -2 / - | KF8EXX | - / -20 | 4 | ✓ Closing fragment |
| 08-16 04:52 | 80m | +1 / - | G0BLB | - / +3 | 5 | ✓ Closing fragment |
| 08-16 04:51 | 80m | +2 / - | KB1EFS | - / -16 | 3 | ✓ Closing fragment |
| 08-16 04:50 | 80m | +8 / -5 | DL9KM | -18 / -8 | 5 | ✓ Full exchange observed |
| 08-16 04:49 | 80m | +6 / - | DM2JJ | - / +10 | 2 | ✓ Closing fragment |
| 08-16 04:46 | 80m | -3 / - | <...> | - / - | 5 | Partial capture |
| 08-16 04:43 | 80m | 0 / - | CE1KR | - / -15 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 055130 +5 335 OA4ENG DD7DAC JO31 (x3) 151200 -12 2281 DL/SP9DP DD7DAC JO31 200200 -2 2545 VJ6X DD7DAC JO31 (x6) 223200 -7 2656 VO1ACZ DD7DAC JO31 223400 -8 2656 VJ6X DD7DAC JO31 (x4)
UTC dB Audio Message 205845 -8 605 CQ DD7DAC JO31 (x2) 210630 -17 1073 R4GM DD7DAC JO31 (x3) 210745 -15 2414 DD7DAC R4GM -21 210800 -21 1073 R4GM DD7DAC R-16 210815 +0 2414 DD7DAC R4GM RR73 210900 -13 1073 S03REC DD7DAC JO31 (x2) 220515 -17 1629 UF4S DD7DAC JO31 220530 -5 1318 DD7DAC UF4S -15 220545 -15 1629 UF4S DD7DAC R-16 220600 -8 1318 DD7DAC UF4S RR73 220615 -20 1629 UF4S DD7DAC 73
UTC dB Audio Message 054915 +2 2563 DO6THI DD7DAC 73 (x2) 055100 +4 2563 EA1JWG DD7DAC JO31 (x4) 055345 +6 2563 EA1DLU DD7DAC JO31 (x2) 183600 -4 1857 ZS6WAB DD7DAC JO31 (x2) 184215 +16 2874 UA1CEI/3 DD7DAC JO31 (x4) 184515 +0 2505 DA6WM DD7DAC -02
UTC dB Audio Message 130300 +0 1902 DD7DAC IV3JER 73 130315 +6 2325 HA7NB DD7DAC -01 (x2) 130415 +9 2324 BA3NZ DD7DAC JO31 (x3) 130545 +9 2324 4L1FL DD7DAC JO31 (x4) 130830 +10 2324 HL5BMX DD7DAC JO31 (x3) 143830 -6 335 DD7DAC EX7DY -19 (x2)
UTC dB Audio Message 064400 -15 889 DD7DAC UN7AM RR73 064930 +5 481 SV7BAY DD7DAC R-13 (x2) 071030 -6 488 4O7DX DD7DAC JO31 (x4) 111615 -7 2176 3A2MW DD7DAC JO31 (x3)
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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