OD5XX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OD5XX, decoded by SO8OO in southeastern Poland. 871 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-10-11.
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 871 FT8 messages attributed to OD5XX as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (37%), followed by 160 m (28%) and 80 m (24%). Most decodes (87%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-11 03:08 UTC
Observed FT8 message patterns
- Attributed sample
- 871 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 158, moderate (-15 to -9 dB) 305, strong (≥ -8 dB) 408.
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 OD5XX 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 OD5XX
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
- KM73 · 267 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,124 km (approx.)
- Last such locator decoded
- 2026-10-11 03:08 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 | OD5XX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-11 03:08 | 160m | - / - | KB3VQC | -20 / - | 2 | Partial capture |
| 10-11 03:08 | 160m | - / - | M0IOY | -12 / - | 3 | Partial capture |
| 10-11 03:07 | 160m | -12 / +8 | ES2AJ | +4 / - | 4 | Partial capture |
| 10-11 02:50 | 160m | - / - | EA8BS | -12 / - | 4 | Partial capture |
| 10-11 02:49 | 160m | - / - | RX6DA | -9 / - | 9 | Partial capture |
| 10-11 02:48 | 160m | - / - | PA3KUS | -11 / - | 3 | Partial capture |
| 10-11 02:48 | 160m | -4 / - | US2YW | 0 / -14 | 10 | Partial capture |
| 10-11 02:44 | 40m | -12 / - | KP4MAQ | - / - | 4 | Partial capture |
| 10-11 02:42 | 40m | -11 / - | Z34K | - / -18 | 4 | ✓ Closing fragment |
| 10-10 01:33 | 40m | 0 / - | NI3N | - / - | 4 | Partial capture |
| 10-10 01:31 | 40m | - / - | F5OYA/P | -5 / - | 7 | Partial capture |
| 10-10 01:30 | 40m | -5 / - | R5AV | - / -15 | 2 | ✓ Closing fragment |
| 10-10 01:28 | 40m | 0 / - | PA3DZM | - / -19 | 2 | Partial capture |
| 10-10 01:26 | 40m | -6 / - | 3B8FA | - / -9 | 3 | ✓ Closing fragment |
| 10-10 01:21 | 40m | +6 / - | K0EOO | - / - | 2 | ✓ Closing fragment |
| 10-10 01:21 | 40m | - / - | RN6HK | +8 / - | 4 | Partial capture |
| 10-10 01:20 | 40m | - / - | RX9WN | -8 / - | 5 | Partial capture |
| 10-10 01:18 | 40m | -1 / - | N1KV | - / -6 | 5 | ✓ Closing fragment |
| 10-10 01:17 | 40m | -2 / - | DK4RH | - / - | 3 | Partial capture |
| 10-10 01:11 | 40m | -8 / - | HI8WJI | - / - | 5 | Partial capture |
| 10-10 01:10 | 40m | -2 / - | 9K2KU | - / -18 | 2 | ✓ Closing fragment |
| 10-08 22:15 | 160m | - / - | PA3ANZ | +3 / - | 3 | Partial capture |
| 10-08 22:14 | 160m | - / - | 9A2EU | +8 / - | 3 | Partial capture |
| 10-08 22:13 | 160m | - / - | OM0RX | +1 / - | 2 | Partial capture |
| 10-08 22:13 | 160m | - / - | PC7B | -10 / - | 4 | Partial capture |
| 10-08 22:13 | 160m | - / - | LX1JX | 0 / - | 5 | Partial capture |
| 10-08 22:12 | 160m | - / -10 | DK9WI | -6 / - | 5 | Partial capture |
| 10-08 22:12 | 160m | - / - | DL7GP | +1 / - | 4 | Partial capture |
| 10-08 22:12 | 160m | - / - | OM2WW | +5 / - | 8 | Partial capture |
| 10-08 22:12 | 160m | -4 / -16 | UX5UO | +2 / - | 5 | ✓ Closing observed |
| 10-08 22:06 | 80m | - / - | SP4NDY | +8 / - | 6 | Partial capture |
| 10-08 22:05 | 80m | - / - | DL2DBR | -1 / - | 4 | Partial capture |
| 10-08 22:05 | 80m | - / - | RO2X | +7 / - | 10 | Partial capture |
| 10-08 22:04 | 80m | 0 / 0 | DK1MCS | +5 / -19 | 10 | Partial capture |
| 10-08 22:03 | 80m | - / - | EA4DS | -6 / - | 11 | Partial capture |
| 10-08 22:02 | 80m | +4 / -8 | SP4BB | +4 / - | 2 | Partial capture |
| 10-06 04:29 | 60m | - / - | EI4KF | -22 / - | 3 | Partial capture |
| 10-06 04:26 | 60m | - / - | F4IIX | -7 / - | 5 | Partial capture |
| 10-06 04:26 | 60m | - / - | SV8LMQ | -12 / - | 2 | Partial capture |
| 10-06 04:25 | 60m | - / - | F5RRS | -8 / - | 3 | Partial capture |
| 10-06 04:25 | 60m | - / - | LZ2VQ | -8 / - | 2 | Partial capture |
| 10-06 04:24 | 60m | -19 / -9 | SQ8GBG | -22 / -14 | 3 | Partial capture |
| 10-06 04:12 | 80m | - / - | F5MOO | +4 / - | 4 | Partial capture |
| 10-05 17:01 | 40m | - / -1 | RC2DT | -12 / - | 2 | Partial capture |
| 10-05 17:00 | 40m | +9 / -7 | DL6MN | -14 / -7 | 5 | ✓ Full exchange observed |
| 10-05 16:59 | 160m | - / -20 | DJ2TI | +6 / - | 10 | Partial capture |
| 10-05 16:59 | 40m | - / - | RD3FY | -9 / - | 4 | Partial capture |
| 10-05 16:58 | 40m | - / - | DL9KM | -9 / - | 7 | Partial capture |
| 10-05 16:58 | 40m | - / - | DM2CNE | -19 / - | 3 | Partial capture |
| 10-05 16:58 | 40m | - / - | EB5IVB | -21 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025200 -3 1502 US2YW OD5XX -12 025215 -8 1647 OD5XX RX6DA KN85 025215 -16 2201 OD5XX EA8BS IL18 025245 -8 1647 OD5XX RX6DA KN85 (x3) 030730 -12 1503 ES2AJ OD5XX KM73 (x2) 030815 -10 1120 OD5XX M0IOY IO93 030815 +3 1919 OD5XX ES2AJ +08 030845 -12 1120 OD5XX M0IOY IO93 030845 -20 1015 OD5XX KB3VQC FM19 030845 +4 1503 OD5XX ES2AJ +08 030915 -15 1120 OD5XX M0IOY IO93 030945 -19 1014 OD5XX KB3VQC FM19
UTC dB Audio Message 013345 -3 743 NI3N OD5XX KM73 013400 -9 895 OD5XX F5OYA/P JN13 013415 +0 743 NI3N OD5XX KM73 013430 -6 895 OD5XX F5OYA/P JN13 013445 +0 743 NI3N OD5XX KM73 013500 -5 895 OD5XX F5OYA/P JN13 013515 +5 743 A71AT OD5XX -11 024215 -12 1539 Z34K OD5XX -18 (x4) 024430 -9 1539 KP4MAQ OD5XX KM73 (x4)
UTC dB Audio Message 220700 +11 1503 OD5XX DK1MCS R+00 220730 +7 2774 OD5XX SP4NDY KO04 220730 +9 2677 OD5XX RO2X KO74 220730 -4 992 OD5XX EA4DS IN80 220730 +6 1503 OD5XX DK1MCS R+00 220800 +8 2677 OD5XX RO2X KO74 220800 +9 1503 OD5XX DK1MCS R+00 220830 +7 2677 OD5XX RO2X KO74 220830 +1 1503 OD5XX DK1MCS R+00 220900 +6 2677 OD5XX RO2X KO74 220900 -3 992 OD5XX EA4DS IN80 220930 +4 2774 OD5XX SP4NDY KO04 220930 +6 2677 OD5XX RO2X KO74 220930 -7 992 OD5XX EA4DS IN80 221030 +9 2899 OD5XX SP4NDY KO04
UTC dB Audio Message 042615 -15 1535 OD5XX SV8LMQ KM18 042615 -4 2509 OD5XX LZ2VQ KN23 042615 -7 1913 OD5XX F5RRS JN36 (x2) 042645 -5 2265 OD5XX F4IIX IN95 (x2) 042730 -10 2567 OD5XX SV8LMQ KM18 042745 -7 2265 OD5XX F4IIX IN95 (x3) 042945 -19 1608 OD5XX EI4KF IO54 (x3) 043145 -13 2234 OD5XX OH2CLX KP10 043145 -18 1145 OD5XX DK2CC JO63
UTC dB Audio Message 003400 +3 1247 AI5I OD5XX RR73 (x2) 003500 +5 1247 VA3FF OD5XX -05 (x2) 003545 -12 2712 OD5XX VA3FF 73 003645 -5 2985 OD5XX CO2QU -06 004000 +2 1247 XE1RK OD5XX -04 (x3) 004115 -1 1247 OD5XX YO4NF -01 205700 -14 1578 S55X OD5XX KM73 (x5)
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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