ON7DJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON7DJ, decoded by SO8OO in southeastern Poland. 1,552 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 91 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-12.
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 1,552 FT8 messages attributed to ON7DJ as the transmitting token by decoded message structure across 91 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 40 m (18%) and 10 m (10%). The busiest six-hour window was 15:00-21:00 UTC, containing 50% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.1 dB.
Overview
Bands
Last attributed message: 2026-10-12 06:56 UTC
Observed FT8 message patterns
- Attributed sample
- 1,552 messages
- Active dates
- 91 UTC dates
- Estimated median S/N
- -8.1 dB
- Estimated 10th-90th percentile
- -18 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 285, moderate (-15 to -9 dB) 480, strong (≥ -8 dB) 787.
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 ON7DJ 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 ON7DJ
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
- JO21 · 1,060 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-10-12 06:56 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 | ON7DJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-12 06:54 | 40m | -15 / - | YV5JLO | - / - | 4 | Partial capture |
| 10-12 05:18 | 80m | - / -13 | IK4TVP | -2 / - | 4 | Partial capture |
| 10-12 05:18 | 80m | -6 / -10 | OK1HEH | +5 / -11 | 5 | ✓ Full exchange observed |
| 10-12 05:15 | 80m | -6 / -2 | T77RN | -18 / -9 | 6 | ✓ Full exchange observed |
| 10-12 05:10 | 80m | - / +3 | T77RN | -9 / - | 3 | Partial capture |
| 10-09 06:45 | 40m | -20 / - | YV6BXN | - / - | 4 | Partial capture |
| 10-09 06:37 | 40m | -20 / - | YV6BXN | - / - | 2 | Partial capture |
| 10-09 06:33 | 40m | -12 / - | KB8U | - / - | 2 | Partial capture |
| 10-09 06:31 | 40m | -10 / - | N5XZ | - / - | 2 | Partial capture |
| 10-09 06:28 | 40m | -6 / - | PY2DPM | - / -14 | 3 | ✓ Closing fragment |
| 10-09 06:21 | 40m | -7 / - | VE2LBI | - / - | 7 | Partial capture |
| 10-09 05:54 | 40m | -17 / - | OA4ENG | - / -17 | 4 | ✓ Closing fragment |
| 10-09 05:37 | 80m | -18 / - | EA8TL | - / -8 | 3 | ✓ Closing fragment |
| 10-08 06:36 | 40m | -2 / - | OH6IH | - / -17 | 2 | ✓ Closing fragment |
| 10-08 05:20 | 80m | - / - | EB3JT | -24 / - | 2 | Partial capture |
| 10-08 05:16 | 80m | -7 / - | EA8SG | - / -8 | 3 | Partial capture |
| 10-07 05:13 | 40m | 0 / - | N3VA | - / - | 4 | Partial capture |
| 10-06 06:13 | 40m | - / - | S55A | -8 / - | 2 | Partial capture |
| 10-06 06:09 | 40m | -7 / - | OA4ENG | - / -25 | 6 | ✓ Closing fragment |
| 10-06 06:03 | 40m | -16 / - | ON1JP | - / -23 | 2 | Partial capture |
| 10-06 06:00 | 40m | - / -12 | ON1JP | -20 / - | 2 | Partial capture |
| 10-06 05:58 | 40m | +1 / - | PY2DPM | - / -7 | 5 | ✓ Closing fragment |
| 10-06 05:42 | 80m | -23 / - | KE4EB | - / - | 3 | Partial capture |
| 10-06 05:31 | 40m | -12 / - | C5R | - / - | 2 | Partial capture |
| 10-06 05:28 | 80m | - / - | EA1IOK | -8 / - | 5 | Partial capture |
| 10-06 05:27 | 80m | -24 / - | KP2B | - / - | 2 | ✓ Closing fragment |
| 10-05 05:59 | 80m | -17 / - | YV6BXN | - / - | 4 | Partial capture |
| 10-05 05:46 | 80m | -20 / - | K6VHF/HR9 | - / -19 | 2 | Partial capture |
| 10-04 06:07 | 80m | -7 / - | KZ7Y | - / - | 4 | Partial capture |
| 10-04 06:05 | 80m | -13 / - | N9HXR | - / - | 3 | Partial capture |
| 10-04 06:02 | 80m | -11 / - | K4YT | - / +1 | 3 | ✓ Closing fragment |
| 10-03 17:06 | 10m | -22 / - | PP2JP | - / - | 2 | Partial capture |
| 10-02 05:52 | 40m | +3 / - | KJ5PTH | - / -13 | 4 | Partial capture |
| 10-02 05:49 | 40m | -12 / - | K8OCN | - / - | 2 | ✓ Closing fragment |
| 10-02 05:46 | 40m | - / -15 | US2YW | +10 / - | 3 | ✓ Closing fragment |
| 10-02 05:42 | 40m | -3 / - | K8SSN | - / -15 | 6 | Partial capture |
| 10-02 05:22 | 80m | -24 / - | WC4H | - / - | 4 | ✓ Closing fragment |
| 09-30 07:22 | 40m | -6 / - | HK4EIC | - / - | 3 | Partial capture |
| 09-30 07:19 | 40m | -5 / - | HK4EIC | - / - | 3 | Partial capture |
| 09-29 06:06 | 80m | -15 / - | PE50SCOUT | - / - | 3 | Partial capture |
| 09-29 05:37 | 40m | -12 / - | OA4ENG | - / - | 2 | Partial capture |
| 09-29 05:23 | 80m | - / - | G8OO | +2 / - | 9 | Partial capture |
| 09-29 05:23 | 80m | - / - | PE1NPS | -10 / - | 3 | Partial capture |
| 09-29 05:21 | 80m | -11 / -19 | KF8EXX | -17 / -10 | 6 | ✓ Full exchange observed |
| 09-29 05:15 | 80m | 0 / - | HI3RRR | - / - | 8 | Partial capture |
| 09-29 05:13 | 80m | -8 / - | HB9EKJ | - / -7 | 4 | ✓ Closing fragment |
| 09-28 06:20 | 40m | -12 / +2 | IK4TVP | -13 / +2 | 6 | ✓ Full exchange observed |
| 09-28 06:16 | 40m | -2 / - | N3VA | - / -18 | 5 | ✓ Closing fragment |
| 09-28 06:14 | 40m | +3 / - | W4PSK | - / -12 | 3 | ✓ Closing fragment |
| 09-28 06:12 | 40m | +1 / - | N3VA | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 063300 -11 2421 KB8U ON7DJ JO21 (x2) 063730 -18 1437 YV6BXN ON7DJ JO21 (x7) 062930 -13 2214 ZL4SA ON7DJ R-18 074315 -16 2597 UN3M ON7DJ JO21 065415 -14 1404 YV5JLO ON7DJ JO21 (x4)
UTC dB Audio Message 051545 -3 2466 T77RN ON7DJ JO21 (x2) 051700 -17 2466 ON7DJ T77RN -02 051715 -7 2466 T77RN ON7DJ R-09 051730 -18 2466 ON7DJ T77RN RR73 051745 -11 2467 T77RN ON7DJ 73 051830 +2 1859 ON7DJ OK1HEH -10 051830 -7 1999 ON7DJ IK4TVP -13 051900 +7 1859 ON7DJ OK1HEH -10 051900 -2 1999 ON7DJ IK4TVP -13 051915 -6 1859 OK1HEH ON7DJ R-11 051930 +7 1859 ON7DJ OK1HEH RR73 051930 +1 1999 ON7DJ IK4TVP -13 051945 -7 1859 OK1HEH ON7DJ 73 052000 +2 1999 ON7DJ IK4TVP -13
UTC dB Audio Message 130700 -15 2378 YB1MIG ON7DJ JO21 (x3) 130930 -16 1435 <...> ON7DJ JO21 (x2) 145215 -4 655 PY4PTO ON7DJ JO21 (x2) 181315 -13 1995 PS7RW ON7DJ JO21 (x2) 182245 -12 799 CX2DAJ ON7DJ JO21 125630 -14 1088 ON7DJ R6FX LN14 172830 +2 2631 ON7DJ CE2SV -07 (x2) 170615 -22 1341 PP2JP ON7DJ JO21 (x2)
UTC dB Audio Message 182315 +4 1578 A71DA ON7DJ JO21 (x2) 182445 +5 1058 VE1VAS ON7DJ JO21 (x2) 182600 -10 1055 ON7DJ VE1VAS -06 (x2) 182715 +8 1010 VE1VAS ON7DJ R-24 (x4) 060400 -17 1904 ON7DJ R6FX LN14 064545 -11 2520 ZL1BQD ON7DJ JO21 (x3) 065415 +0 922 CO8LY ON7DJ JO21
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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