DM8KM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DM8KM, decoded by SO8OO in southeastern Poland. 5,640 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-21.
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 5,640 FT8 messages attributed to DM8KM as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 80 m (25%) and 20 m (17%). The busiest six-hour window was 02:00-08:00 UTC, containing 37% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-08-21 23:06 UTC
Observed FT8 message patterns
- Attributed sample
- 5,640 messages
- Active dates
- 29 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -12 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 300, moderate (-15 to -9 dB) 681, strong (≥ -8 dB) 4,659.
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 DM8KM 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 DM8KM
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
- JN69 · 4,084 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 634 km (approx.)
- Last such locator decoded
- 2026-08-21 22:44 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 | DM8KM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 22:45 | 20m | -7 / - | PD0DNA | - / -21 | 41 | Partial capture |
| 08-21 22:38 | 20m | 0 / - | VA3UG | - / -5 | 2 | ✓ Closing fragment |
| 08-21 22:21 | 20m | -6 / - | K2JC | - / -9 | 31 | Partial capture |
| 08-21 22:11 | 20m | -9 / - | K2JC | - / -13 | 12 | Partial capture |
| 08-21 21:48 | 20m | -12 / - | W8BS | - / -12 | 3 | Partial capture |
| 08-21 21:44 | 20m | -1 / - | W8BS | - / -12 | 3 | Partial capture |
| 08-21 21:14 | 20m | -11 / - | G1CEC | - / -13 | 54 | Partial capture |
| 08-21 21:04 | 20m | -6 / - | K1DDA | - / -13 | 7 | ✓ Closing fragment |
| 08-21 21:01 | 20m | -10 / - | KQ4MHD | - / -16 | 2 | ✓ Closing fragment |
| 08-21 20:58 | 20m | -6 / - | VA2QR | - / +2 | 2 | ✓ Closing fragment |
| 08-21 20:49 | 20m | -2 / - | PA0ARR | - / +1 | 6 | ✓ Closing fragment |
| 08-21 20:38 | 20m | 0 / - | HH2JR | - / -18 | 16 | ✓ Closing fragment |
| 08-21 20:30 | 20m | +4 / - | HH2JR | - / -22 | 4 | Partial capture |
| 08-21 20:15 | 20m | +1 / - | HH2JR | - / -17 | 12 | ✓ Closing fragment |
| 08-21 20:07 | 20m | -4 / - | XU7O | - / -15 | 11 | ✓ Closing fragment |
| 08-21 19:38 | 20m | -8 / - | SP6AXW | - / -14 | 41 | Partial capture |
| 08-21 19:05 | 20m | -14 / - | BA8BLK | - / -6 | 2 | ✓ Closing fragment |
| 08-21 19:02 | 20m | -12 / - | SP0LPR | - / 0 | 2 | ✓ Closing fragment |
| 08-21 18:14 | 40m | -18 / - | UA0QNE | - / - | 3 | Partial capture |
| 08-21 18:07 | 40m | -18 / - | F8KIC/P | -21 / 0 | 8 | Partial capture |
| 08-14 09:50 | 20m | - / -12 | F4NBB | +6 / - | 2 | ✓ Closing fragment |
| 08-14 09:37 | 20m | - / -3 | UY5AO | -3 / - | 3 | ✓ Closing fragment |
| 08-13 20:19 | 80m | 0 / - | EA9UV | - / - | 4 | Partial capture |
| 08-13 20:00 | 80m | -5 / - | G4YKQ | -3 / - | 2 | ✓ Closing observed |
| 08-13 19:40 | 80m | -3 / +8 | LB5WB | +3 / -1 | 4 | ✓ Full exchange observed |
| 08-13 19:38 | 80m | +1 / -5 | DK4REX | -5 / +2 | 5 | ✓ Full exchange observed |
| 08-13 19:22 | 80m | -2 / - | DL5ZB | +14 / +2 | 5 | ✓ Full exchange observed |
| 08-13 19:22 | 80m | 0 / -4 | DF6OX | 0 / -5 | 10 | ✓ Full exchange observed |
| 08-13 19:19 | 80m | +2 / - | DH4YAQ | - / -14 | 2 | ✓ Closing fragment |
| 08-13 19:18 | 80m | - / - | DF6OX | -2 / - | 2 | Partial capture |
| 08-13 19:13 | 80m | -6 / 0 | DK7UY | -2 / -4 | 5 | ✓ Full exchange observed |
| 08-10 06:46 | 40m | - / -11 | 9A7Y | -21 / - | 2 | Partial capture |
| 08-10 05:00 | 80m | +2 / -8 | SQ9LOJ | 0 / -2 | 5 | ✓ Full exchange observed |
| 08-10 04:54 | 80m | -6 / -16 | SQ8AA | +19 / -10 | 4 | ✓ Full exchange observed |
| 08-10 04:47 | 80m | -1 / - | ON8MA | - / 0 | 2 | ✓ Closing fragment |
| 08-10 04:35 | 80m | +4 / - | DO1FZL | -1 / - | 2 | ✓ Closing observed |
| 08-10 04:29 | 80m | +6 / - | DA6DE | -24 / -3 | 3 | Partial capture |
| 08-10 04:27 | 80m | +4 / - | S53MJ | -12 / -5 | 5 | Partial capture |
| 08-10 04:19 | 80m | +12 / 0 | LY1DY | +18 / -3 | 4 | ✓ Full exchange observed |
| 08-10 04:19 | 80m | +12 / -2 | SP9WAZ | +15 / -1 | 4 | ✓ Full exchange observed |
| 08-10 04:17 | 80m | +8 / - | F4IRP | - / -4 | 2 | ✓ Closing fragment |
| 08-10 04:10 | 80m | +14 / +2 | SQ2BXI | +16 / - | 3 | ✓ Closing observed |
| 08-10 03:56 | 80m | +8 / - | F5LMJ | - / -4 | 2 | ✓ Closing fragment |
| 08-10 03:53 | 80m | +8 / -7 | F4NGK | -16 / -3 | 6 | ✓ Full exchange observed |
| 08-10 03:48 | 80m | +3 / - | M0LOW | - / -8 | 2 | ✓ Closing fragment |
| 08-10 03:46 | 80m | +6 / - | ON4MAP | -17 / -2 | 3 | ✓ Closing observed |
| 08-09 12:52 | 20m | -5 / - | PE1MYH | - / -17 | 5 | Partial capture |
| 08-09 12:50 | 20m | -3 / -9 | YU7DES | +4 / - | 3 | ✓ Closing observed |
| 08-09 12:42 | 20m | -5 / -13 | EW7AS | -17 / - | 5 | ✓ Closing observed |
| 08-09 12:41 | 20m | - / -1 | DL6EL | -8 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 225945 -10 3126 PD0DNA DM8KM R-11 (x15)
UTC dB Audio Message 180645 -16 3128 CQ DM8KM JN69 180730 -21 2070 DM8KM F8KIC/P JN29 180745 -16 3128 F8KIC/P DM8KM +00 (x7) 181315 -16 3116 CQ DM8KM JN69 (x2) 181445 -19 3116 UA0QNE DM8KM JN69 (x3) 181915 -15 3116 CQ DM8KM JN69
UTC dB Audio Message 201400 +4 3096 CQ DM8KM JN69 (x11) 201930 +7 3096 EA9UV DM8KM JN69 (x4)
UTC dB Audio Message 023445 +2 2764 IK4CBO DM8KM +04 023530 -9 1958 DM8KM IK4CBO 73 023545 +1 2764 CQ DM8KM JN69 (x13)
UTC dB Audio Message 221715 -21 2052 CQ DM8KM JN69 (x6) 222445 -20 2053 GU8FBO DM8KM 73 222615 -22 2053 CQ DM8KM JN69 (x8)
UTC dB Audio Message 115930 -10 1464 MM7UHK DM8KM 73 120045 -15 1464 OZ4AFR DM8KM R-04 (x2) 120145 -15 1464 EW2ZC DM8KM JN69 (x2) 120245 -9 1463 LY2BBF DM8KM JN69 (x3) 120415 -15 1463 EW2ZC DM8KM R+02 (x2) 145730 -5 2777 DM8KM F4LNM JN09 (x3) 211545 -11 2684 DM8KM PY5TD R-19 211645 -9 2690 DM8KM PU2XEE -16
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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