ON8DM — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving ON8DM, decoded by SO8OO in southeastern Poland. 3,725 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 84 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-23.
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 3,725 FT8 messages attributed to ON8DM as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 160 m (25%) and 60 m (12%). Most decodes (60%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-23 21:29 UTC
Observed FT8 message patterns
- Attributed sample
- 3,725 messages
- Active dates
- 84 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -13 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 226, moderate (-15 to -9 dB) 519, strong (≥ -8 dB) 2,980.
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 ON8DM 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 ON8DM
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
- JO10 · 2,060 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-10-23 21:28 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 | ON8DM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 21:27 | 160m | +1 / - | DK8PR | -22 / - | 3 | ✓ Closing observed |
| 10-23 21:26 | 160m | -3 / -13 | R5KH | -4 / -15 | 5 | ✓ Full exchange observed |
| 10-23 16:34 | 80m | -3 / - | OD5ZZ | - / - | 2 | Partial capture |
| 10-23 08:18 | 40m | -10 / - | VK3YE | - / - | 2 | Partial capture |
| 10-23 08:16 | 40m | -7 / - | EA1AEC | - / -9 | 2 | ✓ Closing fragment |
| 10-23 08:15 | 40m | -10 / - | GM5CAR | - / 0 | 2 | ✓ Closing fragment |
| 10-23 08:14 | 40m | -10 / - | W5AJ | - / -12 | 2 | ✓ Closing fragment |
| 10-23 08:12 | 40m | -9 / - | ZL4HZ | - / - | 2 | Partial capture |
| 10-23 08:09 | 40m | -3 / - | VK3PF | - / -14 | 4 | ✓ Closing fragment |
| 10-23 07:17 | 40m | -8 / - | V47NT | - / -9 | 5 | ✓ Closing fragment |
| 10-23 06:52 | 80m | -14 / - | VE3HLM | - / -9 | 2 | ✓ Closing fragment |
| 10-23 06:48 | 80m | -14 / - | VA3FZ | - / -5 | 2 | Partial capture |
| 10-23 06:47 | 80m | -5 / - | KN1OBI | - / - | 2 | Partial capture |
| 10-23 06:45 | 80m | -1 / - | PY2WC | - / -15 | 4 | ✓ Closing fragment |
| 10-23 06:42 | 80m | -6 / - | YU65AEC | - / -10 | 2 | Partial capture |
| 10-23 06:40 | 80m | -7 / - | W0RLD | - / -23 | 3 | ✓ Closing fragment |
| 10-23 06:38 | 60m | -10 / - | DK5CR/QRP | - / - | 2 | Partial capture |
| 10-23 06:37 | 60m | -8 / - | SM0BRF | - / -6 | 2 | ✓ Closing fragment |
| 10-23 06:35 | 60m | -13 / - | ZL2AGY | - / -13 | 3 | Partial capture |
| 10-23 06:34 | 60m | -16 / - | W1FAM | - / -7 | 3 | ✓ Closing fragment |
| 10-23 04:41 | 60m | -11 / - | EP2AES | - / - | 3 | Partial capture |
| 10-23 04:32 | 60m | -14 / - | S52AS | - / -2 | 2 | ✓ Closing fragment |
| 10-23 04:27 | 60m | -12 / - | EP2AES | - / - | 11 | Partial capture |
| 10-22 19:05 | 40m | +4 / - | S51PV | - / -15 | 3 | ✓ Closing fragment |
| 10-22 18:59 | 40m | +5 / - | VU2XZ | - / - | 3 | Partial capture |
| 10-22 18:57 | 40m | +2 / - | BA7SAY | - / - | 2 | ✓ Closing fragment |
| 10-22 18:55 | 40m | 0 / - | EX7CQ | - / -7 | 3 | ✓ Closing fragment |
| 10-22 18:46 | 160m | -3 / - | UN0GY | - / -22 | 3 | ✓ Closing fragment |
| 10-22 18:43 | 160m | -13 / - | EA1FAW | - / -18 | 2 | ✓ Closing fragment |
| 10-22 18:41 | 160m | +6 / - | RA9QBR | - / - | 2 | Partial capture |
| 10-22 18:19 | 160m | -1 / - | EX7DY | - / -16 | 2 | Partial capture |
| 10-22 18:16 | 160m | +2 / - | BD8CS | -10 / -17 | 5 | ✓ Closing observed |
| 10-22 16:41 | 60m | -6 / - | DJ1PQ | - / -20 | 2 | ✓ Closing fragment |
| 10-22 16:34 | 60m | -5 / -2 | DM5ME | -10 / -4 | 4 | ✓ Full exchange observed |
| 10-22 16:31 | 60m | - / +5 | SP2EWQ | 0 / - | 3 | ✓ Closing fragment |
| 10-22 16:30 | 60m | -12 / +5 | ON7PR | -19 / -8 | 4 | ✓ Full exchange observed |
| 10-22 16:12 | 60m | +1 / - | 3B8FA | - / - | 4 | Partial capture |
| 10-22 15:56 | 60m | -8 / - | 3B8FA | - / - | 6 | Partial capture |
| 10-22 15:44 | 60m | -10 / - | 3B8FA | - / - | 2 | Partial capture |
| 10-22 15:38 | 60m | -9 / -3 | SP4NKJ | +2 / 0 | 5 | ✓ Full exchange observed |
| 10-22 15:29 | 40m | +5 / - | M9NTS | - / 0 | 2 | ✓ Closing fragment |
| 10-22 15:26 | 40m | -4 / +10 | 2I0WAI | -10 / 0 | 4 | ✓ Full exchange observed |
| 10-22 08:38 | 60m | - / -9 | DL4BBY | -12 / - | 2 | ✓ Closing fragment |
| 10-22 08:30 | 40m | -14 / - | ZL4JB | - / - | 2 | Partial capture |
| 10-22 08:25 | 40m | -18 / - | K5RJM | - / - | 2 | Partial capture |
| 10-22 08:24 | 40m | -15 / - | K4YT | - / -13 | 2 | Partial capture |
| 10-22 08:23 | 40m | -7 / - | KE9BSA | - / -13 | 2 | Partial capture |
| 10-22 08:21 | 40m | -12 / - | N5XZ | - / -7 | 2 | Partial capture |
| 10-22 08:19 | 40m | -18 / - | ZL4AS | - / -5 | 3 | ✓ Closing fragment |
| 10-22 08:14 | 40m | -11 / - | VK3BAC | - / -15 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184415 -5 2173 RV9FF ON8DM JO10 184645 +1 1519 UN0GY ON8DM JO10 (x3) 184900 -9 1415 ON8DM LY2BNL KO24 212215 -11 1769 7P8GE ON8DM JO10 212630 -5 1915 ON8DM R5KH KO91 212645 +0 2059 R5KH ON8DM -15 212700 +0 2059 ON8DM R5KH R-13 212715 -6 2059 R5KH ON8DM RR73 212730 -7 2060 ON8DM R5KH 73 212730 -22 1915 ON8DM DK8PR JN49 212800 +1 2345 4J3DJ ON8DM JO10 212830 -21 1915 ON8DM DK8PR JN49 212915 +1 2345 DK8PR ON8DM RR73
UTC dB Audio Message 064500 +0 1205 PY2WC ON8DM JO10 (x4) 064700 -4 1205 KN1OBI ON8DM JO10 (x2) 064800 -14 1365 VA3FZ ON8DM JO10 (x2) 065245 -12 1501 VE3HLM ON8DM -09 (x2) 163415 +0 941 OD5ZZ ON8DM JO10 (x2) 163515 +5 2468 EX8BT ON8DM JO10 165800 +5 1005 RA9CUU ON8DM JO10 165830 -1 1005 CQ ON8DM JO10
UTC dB Audio Message 081015 -5 2333 VK3PF ON8DM R-20 (x2) 081230 -11 1148 ZL4HZ ON8DM JO10 (x2) 081330 -10 1148 CQ ON8DM JO10 081400 -9 1148 W5AJ ON8DM -12 (x2) 081500 -9 1149 GM5CAR ON8DM +00 (x2) 081600 -8 1150 EA1AEC ON8DM -09 (x2) 081800 -10 1989 VK3YE ON8DM JO10 (x2) 081900 +6 2752 KY4WI ON8DM JO10 163045 -4 2362 A61DD ON8DM JO10
UTC dB Audio Message 044245 -6 2359 EP2AES ON8DM JO10 (x2) 063200 -17 1860 HA/OE3RAP ON8DM JO10 063415 -16 1383 W1FAM ON8DM JO10 (x3) 063545 -17 1382 ZL2AGY ON8DM JO10 (x3) 063745 -9 227 SM0BRF ON8DM R-06 063815 -10 1234 DK5CR/QRP ON8DM JO10 063845 -7 1234 SM0BRF ON8DM 73 063930 +9 2150 ON8DM HA5UK +01 063930 -10 1233 DK5CR/QRP ON8DM JO10 064000 -9 1234 HB9ACA ON8DM +02
UTC dB Audio Message 182200 -20 2154 ON8DM PY5/PY2TIM -09 182500 -17 1301 ON8DM CT3MD 73 172415 -21 1554 HG1DRC ON8DM 73 081815 -10 995 ON8DM IW8PQ RR73
UTC dB Audio Message 065315 -17 2321 EA3HLM ON8DM JO10 065415 -15 2372 CQ ON8DM JO10 065445 -10 2695 D2UY ON8DM JO10 065545 -10 2695 RN6MA ON8DM 73 065645 -10 1145 CQ ON8DM JO10 065715 -13 1145 DK7ZT ON8DM R-19 065845 -17 2306 SP9UPH ON8DM -01 (x2) 081415 +14 2140 RI1FJL ON8DM JO10 (x7)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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