DK3MM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK3MM, decoded by SO8OO in southeastern Poland. 131 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-09-20.
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 131 FT8 messages attributed to DK3MM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 131 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -18 to -5 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 55, strong (≥ -8 dB) 47.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with DK3MM 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 DK3MM
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
- JN58 · 67 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 799 km (approx.)
- Last such locator decoded
- 2026-09-20 13:31 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 | DK3MM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 13:28 | 40m | -18 / - | OE4LTB | - / - | 6 | Partial capture |
| 09-20 13:26 | 40m | -19 / - | DG9FEH | - / - | 4 | Partial capture |
| 09-20 08:28 | 40m | -18 / - | G8KHF | - / - | 2 | Partial capture |
| 09-20 08:26 | 40m | -19 / - | MI0NWA | - / -21 | 3 | ✓ Closing fragment |
| 09-20 08:23 | 40m | -17 / - | F1MXE | - / - | 6 | Partial capture |
| 09-20 08:18 | 40m | -18 / -4 | DL7ROB | -7 / -6 | 4 | Partial capture |
| 09-20 08:16 | 40m | -14 / - | F5PBG | - / -12 | 2 | ✓ Closing fragment |
| 09-20 08:13 | 40m | -14 / - | SN40KZE | - / - | 2 | Partial capture |
| 09-20 08:11 | 40m | -14 / -7 | HA1ZW | -4 / -1 | 7 | ✓ Full exchange observed |
| 09-20 08:09 | 40m | -15 / - | IW2NEF | - / +4 | 2 | Partial capture |
| 09-20 08:08 | 40m | -16 / +2 | F4DIA | -16 / +10 | 4 | ✓ Full exchange observed |
| 09-20 07:53 | 40m | -11 / - | F4BAL | - / -21 | 2 | ✓ Closing fragment |
| 09-20 07:52 | 40m | -15 / - | TF5B | - / - | 2 | Partial capture |
| 09-20 07:46 | 40m | -16 / - | HB9SFL | -16 / - | 3 | ✓ Closing observed |
| 09-20 07:44 | 40m | -12 / - | HB9HDK | - / - | 2 | ✓ Closing fragment |
| 09-20 07:43 | 40m | -10 / -7 | PA1TW | -14 / -1 | 3 | ✓ Full exchange observed |
| 09-20 07:31 | 40m | -10 / - | DG1KSA | - / -13 | 2 | Partial capture |
| 09-20 07:30 | 40m | -12 / - | TF5B | - / - | 2 | Partial capture |
| 09-20 07:26 | 40m | -11 / - | DG1KSA | - / - | 3 | Partial capture |
| 09-20 07:24 | 40m | -13 / - | DF2KD | - / -5 | 4 | Partial capture |
| 09-20 07:23 | 40m | -12 / -9 | PG9S | -21 / -10 | 3 | ✓ Full exchange observed |
| 09-20 07:21 | 40m | -11 / - | F4MOJ/P | - / -7 | 4 | ✓ Closing fragment |
| 09-20 07:19 | 40m | -6 / +2 | SP6U | 0 / -6 | 6 | ✓ Full exchange observed |
| 09-20 07:17 | 40m | -7 / - | M0CKX | - / -14 | 3 | ✓ Closing fragment |
| 09-20 06:49 | 40m | -5 / -8 | GJ0KYZ | -2 / - | 4 | ✓ Closing observed |
| 09-20 06:47 | 40m | - / - | F5PBG | -12 / - | 2 | Partial capture |
| 09-20 06:41 | 40m | -5 / +4 | OS4K | -19 / -22 | 3 | ✓ Full exchange observed |
| 09-20 06:41 | 40m | -6 / - | F5PBG | - / -2 | 4 | Partial capture |
| 09-20 06:37 | 40m | -6 / +5 | SP6TID | +9 / -6 | 6 | ✓ Full exchange observed |
| 09-20 06:35 | 40m | -6 / -10 | LA3LUA | 0 / -10 | 5 | ✓ Full exchange observed |
| 09-20 06:34 | 40m | -8 / - | EA5GGU | - / - | 2 | Partial capture |
| 09-20 06:32 | 40m | -6 / - | DA2DA | - / +1 | 3 | ✓ Closing fragment |
| 09-20 06:31 | 40m | -7 / -8 | DF1KG | -12 / - | 2 | ✓ Closing observed |
| 09-20 06:29 | 40m | -9 / - | F5PBG | - / -12 | 3 | Partial capture |
| 09-20 06:27 | 40m | -6 / -5 | OZ3MC | -4 / -2 | 5 | ✓ Full exchange observed |
| 09-20 06:26 | 40m | -8 / -1 | PD1HPB | -14 / -7 | 5 | ✓ Full exchange observed |
| 09-20 06:24 | 40m | -8 / -6 | OZ1KZX | -1 / +3 | 5 | ✓ Full exchange observed |
| 09-20 06:23 | 40m | -6 / - | F5PBG | - / -11 | 2 | Partial capture |
| 09-20 06:20 | 40m | - / -3 | OE/DG7CF | +4 / - | 2 | Partial capture |
| 09-20 06:20 | 40m | -7 / - | IR0IADU | - / +7 | 2 | Partial capture |
| 09-20 06:20 | 40m | -7 / -16 | DF0PDF | +7 / - | 2 | ✓ Closing observed |
| 09-20 06:19 | 40m | - / +2 | HG0NPJ | +6 / - | 2 | ✓ Closing fragment |
| 09-19 14:59 | 40m | -10 / -14 | SQ9SET | -4 / -5 | 5 | Partial capture |
| 09-19 14:32 | 40m | -10 / -6 | OK3BR | -10 / - | 3 | ✓ Closing observed |
| 09-19 14:29 | 40m | -11 / - | PD4RJ | - / -2 | 3 | Partial capture |
| 09-19 14:27 | 40m | -9 / - | DJ2MS | -13 / -1 | 5 | ✓ Closing observed |
| 09-19 14:16 | 40m | -8 / - | OH3MB | - / -5 | 3 | Partial capture |
| 09-19 13:27 | 40m | -14 / - | PA0ARR | - / - | 2 | Partial capture |
| 09-19 13:09 | 40m | -18 / - | ON8WR | - / -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 082715 -18 1885 MI0NWA DK3MM R-21 (x2) 082845 -19 1885 G8KHF DK3MM JN58 (x2) 132630 -20 1846 DG9FEH DK3MM JN58 (x4) 132830 -15 1949 OE4LTB DK3MM JN58 (x6) 133130 -16 1948 YT4ZZ/P DK3MM JN58
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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