DM3XD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DM3XD, decoded by SO8OO in southeastern Poland. 1,028 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-10 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 1,028 FT8 messages attributed to DM3XD as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (28%), followed by 80 m (27%) and 20 m (20%). The busiest six-hour window was 03:00-09:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-09-20 03:41 UTC
Observed FT8 message patterns
- Attributed sample
- 1,028 messages
- Active dates
- 54 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -23 to -9.8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 576, moderate (-15 to -9 dB) 376, strong (≥ -8 dB) 76.
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 DM3XD 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 DM3XD
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
- JO62 · 400 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 675 km (approx.)
- Last such locator decoded
- 2026-09-20 03:41 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 | DM3XD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 03:40 | 60m | - / +1 | IW4DV | -1 / - | 2 | ✓ Closing fragment |
| 09-20 03:31 | 80m | - / -10 | MM0ABM | -7 / - | 2 | ✓ Closing fragment |
| 09-20 03:28 | 80m | -15 / - | HI8R | - / -2 | 4 | Partial capture |
| 09-20 03:24 | 80m | -20 / - | HI8R | - / -6 | 2 | Partial capture |
| 09-20 03:22 | 80m | -17 / -7 | F4HQL | -7 / -2 | 5 | ✓ Full exchange observed |
| 09-20 03:20 | 80m | -14 / -21 | DO5PY | -11 / -5 | 5 | ✓ Full exchange observed |
| 09-20 03:18 | 80m | -14 / - | DL9KM | - / -19 | 2 | ✓ Closing fragment |
| 09-20 03:17 | 80m | -16 / -20 | S57TW | +12 / -5 | 4 | ✓ Full exchange observed |
| 09-20 03:15 | 80m | -15 / - | ON4MAP | -16 / -9 | 3 | ✓ Closing observed |
| 09-20 03:09 | 60m | - / -4 | F1PBZ | +1 / - | 3 | Partial capture |
| 09-20 02:51 | 40m | - / -18 | HB9VAB | +1 / - | 3 | Partial capture |
| 09-20 02:24 | 40m | - / -18 | R3KLE | -4 / - | 2 | ✓ Closing fragment |
| 09-19 10:56 | 40m | -12 / - | OK2SIR/QRP | - / +3 | 4 | Partial capture |
| 09-19 10:53 | 40m | -8 / - | PD4HT | - / -7 | 2 | ✓ Closing fragment |
| 09-19 10:48 | 40m | -10 / - | DL0RRC | - / +5 | 4 | Partial capture |
| 09-19 10:44 | 40m | -17 / - | DC2CB | -18 / +1 | 3 | ✓ Closing observed |
| 09-17 05:38 | 40m | - / -24 | EA1CUB | -13 / - | 9 | Partial capture |
| 09-17 05:31 | 40m | -7 / -24 | EA1CUB | -16 / 0 | 6 | Partial capture |
| 09-17 05:27 | 40m | -16 / -21 | YT3MD | -14 / -1 | 4 | ✓ Full exchange observed |
| 09-16 08:33 | 40m | -18 / - | S56LKP | - / -5 | 2 | Partial capture |
| 09-16 08:31 | 40m | -17 / -7 | OK8CZ | -8 / -10 | 5 | ✓ Full exchange observed |
| 09-16 08:30 | 40m | -13 / - | PD3JW | - / -12 | 2 | Partial capture |
| 09-16 08:26 | 40m | -13 / +3 | F4GUK | -10 / +5 | 6 | ✓ Full exchange observed |
| 09-16 08:24 | 40m | -6 / -17 | SP9MQS | +8 / +10 | 4 | ✓ Full exchange observed |
| 09-16 08:21 | 40m | -11 / - | EI8HV | - / -10 | 3 | ✓ Closing fragment |
| 09-16 08:19 | 40m | -10 / - | ON3MOH/P | - / -1 | 3 | Partial capture |
| 09-16 08:18 | 40m | -12 / -9 | OE9NET | -12 / +1 | 4 | ✓ Full exchange observed |
| 09-16 08:13 | 40m | -12 / - | F4GYM | -19 / -12 | 3 | ✓ Closing observed |
| 09-16 05:32 | 80m | - / -2 | DO1ID | +4 / - | 2 | ✓ Closing fragment |
| 09-16 05:26 | 80m | -16 / -9 | DO1FZL | -6 / - | 4 | ✓ Closing observed |
| 09-16 05:22 | 80m | -22 / - | DL2HUC | -2 / -3 | 5 | ✓ Closing observed |
| 09-16 05:21 | 80m | - / -15 | DF7JS | +4 / - | 2 | ✓ Closing fragment |
| 09-15 20:53 | 60m | -18 / -1 | SM4HCM | -1 / +7 | 5 | ✓ Full exchange observed |
| 09-15 20:48 | 60m | -14 / - | LB9VH | - / - | 2 | Partial capture |
| 09-15 20:46 | 60m | -12 / -1 | PE1MHY | -11 / +1 | 3 | ✓ Full exchange observed |
| 09-15 20:38 | 40m | - / -6 | F1PBZ | -1 / - | 2 | Partial capture |
| 09-15 20:29 | 40m | - / -24 | M0PWC | -8 / - | 3 | Partial capture |
| 09-15 15:36 | 40m | -14 / - | M8KHC | - / -12 | 2 | Partial capture |
| 09-15 08:40 | 40m | -10 / - | DL7GCW | - / -4 | 3 | Partial capture |
| 09-14 17:53 | 40m | -12 / - | S58Y | - / +8 | 4 | Partial capture |
| 09-14 17:51 | 40m | -12 / -13 | RC3D | +4 / - | 3 | ✓ Closing observed |
| 09-14 08:59 | 40m | -15 / - | DL7GCW | - / -5 | 2 | Partial capture |
| 09-14 08:56 | 40m | -11 / -1 | DC6MY | -7 / +9 | 5 | ✓ Full exchange observed |
| 09-05 05:32 | 40m | -8 / - | OA4ENG | - / -13 | 2 | Partial capture |
| 09-05 05:30 | 40m | -6 / - | D44TWO | - / -10 | 2 | Partial capture |
| 09-05 05:24 | 40m | -9 / - | PV8AJ | - / -5 | 6 | ✓ Closing fragment |
| 09-05 05:21 | 40m | -9 / - | F4LZZ | - / -6 | 3 | Partial capture |
| 09-03 10:09 | 40m | -18 / - | DL9DAJ | - / -3 | 3 | Partial capture |
| 09-03 10:08 | 40m | -15 / - | ON1DGN | - / 0 | 2 | ✓ Closing fragment |
| 08-31 02:55 | 80m | -24 / -7 | OK2UPG | +19 / -1 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205615 -16 1327 CQ DM3XD JO62 (x5) 030930 +0 2737 DM3XD F1PBZ -04 030945 -24 1887 CQ DM3XD JO62 031000 +0 2737 DM3XD F1PBZ -04 031015 -23 1888 CQ DM3XD JO62 031030 +4 2737 DM3XD F1PBZ -04 031045 -21 1887 CQ DM3XD JO62 (x2) 034000 -2 1480 DM3XD IW4DV R+01 (x2) 034115 -14 1727 CQ DM3XD JO62
UTC dB Audio Message 032315 -12 1999 F4HQL DM3XD RR73 032330 -4 1259 DM3XD F4HQL 73 032430 -20 1999 HI8R DM3XD -06 (x6) 033115 -8 542 DM3XD MM0ABM R-10 (x2) 033415 -21 1999 CQ DM3XD JO62 (x5)
UTC dB Audio Message 105430 -12 1030 CQ DM3XD JO62 (x3) 105600 -9 1030 OK2SIR/QRP DM3XD +03 (x4) 022430 -6 2159 DM3XD R3KLE R-18 (x2) 022730 -8 2489 DM3XD UN7LZ RR73 023515 +3 350 DM3XD W6NWS R-11 025145 -2 2242 DM3XD HB9VAB R-18 (x3) 030145 -14 602 DM3XD UB4CJS RR73
UTC dB Audio Message 091300 +18 833 DM3XD G3YQA 73 161545 -12 1185 DM3XD EA5JLB -21 (x5) 073430 -10 2198 DM3XD LB8TG R+03 (x2) 073815 +1 1310 DM3XD GB64MOD R-18 074830 -3 1360 DM3XD F5SJC JN05 (x3) 215315 +10 678 DM3XD F1PBZ -11 (x2) 220315 +2 2144 DM3XD VE3ARF R-11
UTC dB Audio Message 204015 -8 1982 DM3XD DL3RC R+07 (x2) 204345 -14 1350 DM3XD DL4ABN JO51 (x3) 214645 +8 610 DM3XD DO9WZ R-16 (x2)
UTC dB Audio Message 080200 -3 1309 DM3XD F5JUS 73 080545 +4 1695 DM3XD LZ2HN 73 082200 -16 2132 DM3XD IW6CZF R-01 110745 -18 2323 DM3XD LA6OCA 73 113745 -10 606 DM3XD OH6NIO 73 155600 -17 1156 CQ DM3XD JO62 (x2) 073730 -18 1785 DM3XD ON8PB R-02 073800 -17 1706 DM3XD F5LHI R-17 (x2) 090130 -6 2687 DM3XD F1PBZ -06 (x3) 121730 -11 774 DM3XD SV2CLJ KN10 (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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee