DK3MJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK3MJ, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-09.
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 37 FT8 messages attributed to DK3MJ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 10 m (24%) and 20 m (22%). Most decodes (76%) fell within the six-hour window 08:00-14:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-08-09 08:31 UTC
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -15 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 27.
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 DK3MJ 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 DK3MJ
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
- JO61 · 21 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 642 km (approx.)
- Last such locator decoded
- 2026-08-09 08:31 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 | DK3MJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-09 08:28 | 40m | -4 / - | F6FHZ | - / -11 | 2 | ✓ Closing fragment |
| 08-09 08:27 | 40m | -6 / - | PA2RO | - / 0 | 2 | ✓ Closing fragment |
| 08-09 08:25 | 40m | -2 / - | DB3MJ | - / -13 | 2 | ✓ Closing fragment |
| 08-03 16:18 | 40m | +6 / - | VJ6X | - / - | 3 | Partial capture |
| 08-03 16:03 | 20m | - / -9 | R9FDE | -16 / - | 2 | ✓ Closing fragment |
| 07-25 11:14 | 20m | -8 / - | YL3RK | - / - | 2 | Partial capture |
| 07-19 07:55 | 20m | - / +3 | <...> | -11 / - | 3 | Partial capture |
| 07-16 15:07 | 40m | -17 / - | G8YPE | - / -8 | 3 | ✓ Closing fragment |
| 07-13 13:06 | 10m | -8 / - | <...> | - / -9 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 150745 -18 1854 G8YPE DK3MJ R-08 (x2) 150915 -15 1854 DJ3ZF DK3MJ RR73 161545 -13 1749 SA6ODD DK3MJ JO61 161815 +7 487 VJ6X DK3MJ JO61 (x3) 082545 -1 2485 DB3MJ DK3MJ R-13 (x2) 082715 -6 2485 PA2RO DK3MJ +00 (x2) 082815 -3 2485 F6FHZ DK3MJ -11 (x2) 082945 -5 2485 G4DBW DK3MJ RR73 083100 -7 939 <...> DK3MJ JO61
UTC dB Audio Message 151430 -14 1116 DK3MJ 7X3WPL +06 075345 +0 2100 TM00TFR DK3MJ JO61 075530 -14 2100 DK3MJ <...> +03 (x3) 111430 -5 2391 YL3RK DK3MJ JO61 (x2) 160330 -15 2316 DK3MJ R9FDE R-09 (x2)
UTC dB Audio Message 130645 -7 1002 <...> DK3MJ JO61 (x3) 130945 +5 1001 9A4ZM DK3MJ +00 131145 +4 1094 <...> DK3MJ JO61 (x2)
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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