DF5AU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF5AU, decoded by SO8OO in southeastern Poland. 148 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-08-28.
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 148 FT8 messages attributed to DF5AU as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 20 m (20%) and 10 m (18%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-08-28 20:58 UTC
Observed FT8 message patterns
- Attributed sample
- 148 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -10 to +14 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 130.
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 DF5AU 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 DF5AU
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
- JO50 · 76 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 770 km (approx.)
- Last such locator decoded
- 2026-08-28 19:40 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 | DF5AU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 20:56 | 80m | -17 / -14 | DO3BOX | -1 / 0 | 5 | ✓ Full exchange observed |
| 08-28 16:09 | 40m | - / -15 | OE6TNO | -7 / - | 4 | ✓ Closing fragment |
| 08-26 18:44 | 80m | +5 / - | <...> | - / -1 | 2 | Partial capture |
| 08-26 18:28 | 80m | - / -10 | EN35UKR | -3 / - | 2 | Partial capture |
| 08-26 18:26 | 80m | +3 / - | <...> | - / - | 2 | Partial capture |
| 08-26 18:25 | 80m | - / - | RA6OY | -2 / - | 6 | Partial capture |
| 08-26 18:25 | 80m | - / - | UA4FKT | -6 / - | 2 | Partial capture |
| 08-26 18:24 | 80m | - / - | R4HHN | -3 / - | 5 | Partial capture |
| 08-26 18:23 | 80m | +14 / - | <...> | - / - | 2 | Partial capture |
| 08-26 18:14 | 80m | +7 / -2 | RK6OQ | -2 / - | 6 | Partial capture |
| 08-26 16:45 | 10m | - / +6 | EC8AVE | -18 / - | 2 | ✓ Closing fragment |
| 08-22 08:37 | 20m | +11 / - | UB0SMX/P | - / -9 | 3 | ✓ Closing fragment |
| 08-22 08:35 | 20m | +4 / - | TI5RR | - / -12 | 3 | ✓ Closing fragment |
| 08-22 08:32 | 20m | +10 / - | IK0XBU/P | - / -21 | 4 | Partial capture |
| 08-22 08:31 | 20m | +6 / - | MW7RHR | - / +3 | 3 | ✓ Closing fragment |
| 08-22 08:11 | 20m | +11 / - | R2EA/P | - / -16 | 4 | ✓ Closing fragment |
| 08-22 07:42 | 20m | +12 / -2 | F1DSZ | 0 / -14 | 4 | ✓ Full exchange observed |
| 08-22 07:40 | 20m | +14 / -3 | UF4S/P | 0 / -19 | 5 | ✓ Full exchange observed |
| 08-22 07:35 | 20m | +10 / - | TI5RR | - / - | 2 | Partial capture |
| 08-22 07:05 | 20m | +18 / - | XQ1KK | - / - | 4 | Partial capture |
| 08-21 07:23 | 40m | 0 / - | KJ2PXS | - / -19 | 2 | ✓ Closing fragment |
| 08-21 07:20 | 40m | -5 / - | OJ0JR | - / - | 2 | Partial capture |
| 08-21 07:20 | 40m | 0 / - | F5OYA/P | - / - | 5 | Partial capture |
| 08-21 07:18 | 40m | 0 / - | KJ2PXS | - / - | 3 | Partial capture |
| 08-21 07:15 | 40m | 0 / - | SA7BYQ | - / +9 | 5 | Partial capture |
| 08-21 07:13 | 40m | -8 / - | F5OYA/P | - / -5 | 2 | ✓ Closing fragment |
| 08-21 07:12 | 40m | -9 / - | IK2WSA | - / - | 2 | ✓ Closing fragment |
| 08-21 07:09 | 40m | -9 / - | PV8AJ | - / - | 3 | Partial capture |
| 08-21 07:08 | 40m | -7 / - | <...> | - / - | 3 | Partial capture |
| 08-21 06:38 | 40m | - / - | YO3GNF | -8 / - | 2 | Partial capture |
| 08-21 06:36 | 40m | 0 / - | K4YT | - / -12 | 4 | ✓ Closing fragment |
| 08-21 06:35 | 40m | -2 / - | IU3UQW | -11 / +2 | 3 | ✓ Closing observed |
| 08-21 06:35 | 40m | -4 / - | F4AXK | - / -7 | 2 | ✓ Closing fragment |
| 08-21 06:31 | 40m | -3 / - | W4GGJ | - / -15 | 2 | ✓ Closing fragment |
| 08-21 06:31 | 40m | -3 / - | F5MXH | -13 / - | 4 | Partial capture |
| 08-21 06:30 | 40m | -4 / - | F5PBG | - / - | 2 | ✓ Closing fragment |
| 08-21 06:29 | 40m | - / - | UX7QV | +7 / - | 5 | Partial capture |
| 08-21 06:29 | 40m | - / -12 | UT4PA | +6 / - | 3 | Partial capture |
| 08-21 06:26 | 40m | -4 / - | HI3JCC | - / - | 5 | Partial capture |
| 08-21 06:00 | 40m | - / - | F1PWS | -10 / - | 2 | Partial capture |
| 08-21 05:59 | 40m | +7 / - | MW7TTA | - / -9 | 3 | ✓ Closing fragment |
| 08-21 05:57 | 40m | +10 / - | WA2HIP | - / - | 3 | Partial capture |
| 08-21 05:55 | 40m | +13 / - | OA4ENG | - / -14 | 3 | Partial capture |
| 08-21 05:53 | 40m | +5 / - | HI3JCC | - / - | 3 | Partial capture |
| 08-21 05:52 | 40m | +3 / - | EC3A | - / +3 | 2 | ✓ Closing fragment |
| 08-21 05:49 | 40m | +14 / -11 | RD3FY | -12 / -2 | 3 | ✓ Full exchange observed |
| 08-21 05:48 | 40m | +14 / - | SQ9CXH | - / +5 | 2 | ✓ Closing fragment |
| 08-21 05:46 | 40m | +5 / - | GU4YBW | - / -3 | 3 | ✓ Closing fragment |
| 08-12 21:57 | 80m | - / - | R3SE | -10 / - | 2 | Partial capture |
| 08-11 22:48 | 80m | - / - | R3SE | -19 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182745 -15 268 DF5AU RA6OY KN88 182800 -6 1646 DF5AU EN35UKR -10 (x2) 184445 +11 1934 <...> DF5AU JO50 (x2) 193200 +15 1391 DF5AU SN40KZE -07 193715 -20 1571 DF5AU DO1LKG JO53 193745 -10 2691 DF5AU DL9DAJ R-13 193930 -18 2690 CQ DF5AU JO50 a1 (x2) 205645 +1 715 DF5AU DO3BOX -14 (x3) 205800 -18 2188 DO3BOX DF5AU R+00 (x2)
UTC dB Audio Message 071845 +2 446 KJ2PXS DF5AU JO50 (x2) 072015 -4 446 F5OYA/P DF5AU JO50 072045 -5 446 OJ0JR DF5AU JO50 (x2) 072215 -3 445 F5OYA/P DF5AU JO50 (x2) 072315 -1 445 KJ2PXS DF5AU R-19 (x2) 072415 +3 445 F5OYA/P DF5AU JO50 (x2) 160915 -6 2224 DF5AU OE6TNO JN77 (x4)
UTC dB Audio Message 094100 +1 1999 YO8RFS DF5AU R+04 (x2) 084600 +1 1926 RW9AD DF5AU JO50 (x3) 093615 -22 1643 DF5AU LZ4VR KN13 093645 -13 1983 RZ3DJ DF5AU JO50 (x2) 093730 -10 673 DF5AU RZ3DJ RR73 093745 -8 1643 DF5AU LZ4VR KN13 094400 -15 1984 R3WCH DF5AU 73 080600 -13 1252 DF5AU II7MGXX +22 080630 -14 1251 DF5AU RR73; DG2SAT <...> +02 164545 -20 1670 DF5AU EC8AVE +06 (x2)
UTC dB Audio Message 081230 +10 2260 R2EA/P DF5AU 73 083115 +5 2258 MW7RHR DF5AU JO50 (x3) 083245 +7 2257 IK0XBU/P DF5AU -21 (x4) 083530 -3 2257 TI5RR DF5AU JO50 (x3) 083645 -13 1937 DF5AU UA4FEN +14 083700 +8 1937 UB0SMX/P DF5AU JO50 (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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