DF40ABF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF40ABF, decoded by SO8OO in southeastern Poland. 1,032 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-09 and 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 1,032 FT8 messages attributed to DF40ABF as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (44%), followed by 40 m (23%) and 60 m (13%). Most decodes (53%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.9 dB.
Overview
Bands
Last attributed message: 2026-08-27 07:52 UTC
Observed FT8 message patterns
- Attributed sample
- 1,032 messages
- Active dates
- 14 UTC dates
- Estimated median S/N
- -9.9 dB
- Estimated 10th-90th percentile
- -18 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 220, moderate (-15 to -9 dB) 344, strong (≥ -8 dB) 468.
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 DF40ABF 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.
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 | DF40ABF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 07:50 | 40m | -16 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 08-27 07:46 | 40m | -16 / - | IV3VFP | -17 / - | 6 | Partial capture |
| 08-27 07:45 | 40m | -18 / - | <...> | -15 / - | 2 | ✓ Closing fragment |
| 08-27 07:45 | 40m | -18 / +5 | DL6UXL | -13 / 0 | 3 | Partial capture |
| 08-27 07:40 | 40m | -15 / - | IV3VFP | -20 / +8 | 7 | Partial capture |
| 08-27 07:40 | 40m | - / - | DL6UXL | -8 / - | 2 | Partial capture |
| 08-27 07:38 | 40m | -18 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 08-27 07:35 | 40m | - / - | US1MM | -1 / - | 8 | Partial capture |
| 08-27 07:33 | 40m | -18 / - | <...> | -17 / - | 3 | ✓ Closing fragment |
| 08-27 07:26 | 20m | - / - | TA2EE | -11 / - | 6 | Partial capture |
| 08-27 05:31 | 80m | +6 / - | I3KAN | - / -11 | 2 | Partial capture |
| 08-27 05:29 | 80m | - / 0 | PE1BSF | -12 / - | 2 | Partial capture |
| 08-27 05:26 | 80m | -11 / +1 | OR7K | -13 / - | 2 | Partial capture |
| 08-27 05:23 | 80m | -6 / - | <...> | -8 / - | 15 | ✓ Closing fragment |
| 08-27 05:14 | 80m | -8 / - | <...> | -7 / - | 3 | ✓ Closing fragment |
| 08-27 05:13 | 80m | -8 / +3 | OZ6P | -10 / - | 3 | Partial capture |
| 08-27 04:36 | 60m | -8 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 08-27 04:31 | 60m | -11 / - | <...> | - / - | 6 | Partial capture |
| 08-27 04:27 | 60m | -6 / - | N8OQ | - / -24 | 2 | Partial capture |
| 08-27 04:22 | 60m | -10 / +6 | DL3HN | -11 / -12 | 6 | Partial capture |
| 08-27 04:22 | 60m | -11 / - | <...> | -6 / - | 6 | ✓ Closing fragment |
| 08-27 04:21 | 60m | -9 / -19 | EW2RA | -1 / -8 | 2 | Partial capture |
| 08-27 04:17 | 60m | -13 / - | F6FHZ | - / -18 | 4 | Partial capture |
| 08-27 04:16 | 60m | -3 / - | <...> | -7 / - | 2 | ✓ Closing fragment |
| 08-27 04:12 | 60m | -14 / - | F6FHZ | - / -19 | 5 | Partial capture |
| 08-25 08:18 | 40m | -19 / - | EA5HM | - / -17 | 2 | Partial capture |
| 08-25 08:14 | 40m | -20 / - | <...> | - / - | 4 | ✓ Closing fragment |
| 08-25 07:31 | 20m | - / -4 | TA2EJ | 0 / - | 4 | Partial capture |
| 08-25 07:21 | 20m | - / -14 | R7OV | -3 / - | 8 | Partial capture |
| 08-25 07:13 | 20m | -18 / - | DL1YEG | - / -19 | 2 | Partial capture |
| 08-25 07:10 | 20m | -11 / - | <...> | - / - | 5 | ✓ Closing fragment |
| 08-25 07:06 | 20m | -10 / - | EW8DU | - / -7 | 2 | Partial capture |
| 08-25 07:05 | 20m | -10 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 08-25 06:45 | 20m | -6 / - | UA3RRT | - / -11 | 4 | Partial capture |
| 08-25 06:41 | 20m | -9 / - | <...> | - / - | 2 | ✓ Closing fragment |
| 08-25 06:40 | 20m | -14 / -10 | F5RRS | -7 / - | 11 | Partial capture |
| 08-25 06:38 | 20m | - / - | <...> | -2 / - | 2 | ✓ Closing fragment |
| 08-25 06:36 | 20m | -10 / - | AI6US | - / -1 | 2 | Partial capture |
| 08-25 06:32 | 20m | - / - | TA2EE | -12 / - | 5 | Partial capture |
| 08-25 06:21 | 20m | - / -3 | DG4MCB | +2 / - | 15 | Partial capture |
| 08-25 06:20 | 20m | - / -15 | TA2EE | -3 / - | 7 | Partial capture |
| 08-25 06:12 | 20m | - / - | RW9WT | -14 / - | 2 | Partial capture |
| 08-25 05:08 | 60m | -17 / - | <...> | - / - | 5 | Partial capture |
| 08-25 05:01 | 60m | -18 / - | <...> | +2 / - | 3 | ✓ Closing fragment |
| 08-25 05:00 | 60m | -16 / -13 | ES2AJ | -2 / - | 4 | Partial capture |
| 08-25 05:00 | 60m | -14 / -5 | SP5PDA | +4 / +4 | 3 | Partial capture |
| 08-25 04:56 | 60m | -14 / - | <...> | +4 / - | 3 | ✓ Closing fragment |
| 08-10 06:13 | 20m | -14 / - | F5PBG | -15 / -12 | 2 | Partial capture |
| 08-10 05:12 | 80m | -19 / - | DO4BOS | -18 / +5 | 3 | ✓ Closing observed |
| 08-10 05:04 | 80m | -14 / - | <...> | +2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 074615 -18 1547 CQ DF40ABF 074645 -16 1547 IV3VFP DF40ABF +11 074700 -17 1535 DF40ABF IV3VFP JN66 074715 -19 1547 IV3VFP DF40ABF +11 (x4) 074915 -14 1547 CQ DF40ABF 074945 -13 1547 F5JAE DF40ABF -04 075015 -15 1547 <...> DF40ABF RR73 075045 -11 1547 CQ DF40ABF 075115 -19 1547 DC5IU DF40ABF -15 075145 -17 1547 <...> DF40ABF RR73 075215 -14 1547 CQ DF40ABF (x2)
UTC dB Audio Message 072345 -4 1412 DF40ABF R7OV R-14 (x3) 073130 +3 1401 DF40ABF TA2EJ KM59 (x4) 072445 +0 1114 CQ DF40ABF 072515 -6 1109 S51CE DF40ABF +00 072630 -12 1114 DF40ABF TA2EE KM69 (x6)
UTC dB Audio Message 052730 -18 1215 <...> DF40ABF 052800 -15 1214 DG9RAB DF40ABF R-04 052830 -12 1214 <...> DF40ABF 73 (x3) 052945 -12 2535 DF40ABF PE1BSF +00 053000 +3 2534 <...> DF40ABF 053015 -12 2535 DF40ABF PE1BSF +04 053030 +7 502 <...> DF40ABF 053100 +5 502 I3KAN DF40ABF R-11 (x2) 053145 -8 501 DF40ABF <...> RR73 (x4)
UTC dB Audio Message 043200 -12 2232 <...> DF40ABF (x4) 043430 -12 2232 CQ DF40ABF (x2) 043630 -5 2232 <...> DF40ABF RR73 043700 -6 2232 CQ DF40ABF 043730 -8 2232 F6FHZ DF40ABF -16 043800 -10 2232 <...> DF40ABF RR73 043900 -8 2232 CQ DF40ABF (x4) 044230 -12 1731 <...> DF40ABF
UTC dB Audio Message 064545 -20 1372 CQ DF40ABF 064615 -15 1371 DL3MIB DF40ABF -24 (x2) 064745 -16 1371 <...> DF40ABF RR73 064815 -20 1371 CQ DF40ABF 064845 -20 1371 <...> DF40ABF RR73 (x3) 062645 -15 1360 DF40ABF <...> 73 063100 -20 1361 <...> DF40ABF RR73 063130 -19 1361 CQ DF40ABF (x4) 063345 -13 2138 DF40ABF <...> RR73
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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