DM5KM — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DM5KM, decoded by SO8OO in southeastern Poland. 3,811 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 95 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.
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 3,811 FT8 messages attributed to DM5KM as the transmitting token by decoded message structure across 95 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (32%) and 160 m (8%). The busiest six-hour window was 05:00-11:00 UTC, containing 40% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2 dB.
Overview
Bands
Last attributed message: 2026-10-23 19:45 UTC
Observed FT8 message patterns
- Attributed sample
- 3,811 messages
- Active dates
- 95 UTC dates
- Estimated median S/N
- +2 dB
- Estimated 10th-90th percentile
- -10 to +16.5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 101, moderate (-15 to -9 dB) 398, strong (≥ -8 dB) 3,312.
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 DM5KM 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 DM5KM
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
- JO43 · 1,476 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 964 km (approx.)
- Last such locator decoded
- 2026-10-23 19:45 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 | DM5KM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 19:43 | 80m | +16 / - | IZ7LDC | - / - | 4 | Partial capture |
| 10-23 19:39 | 80m | +16 / -8 | RA9SBN | -9 / -21 | 6 | ✓ Full exchange observed |
| 10-23 07:00 | 40m | +7 / -7 | DK6WH | -7 / - | 8 | Partial capture |
| 10-23 06:59 | 40m | +5 / -5 | DK6WS | -10 / -15 | 5 | ✓ Full exchange observed |
| 10-23 06:51 | 40m | +9 / - | DF7NO | - / - | 11 | Partial capture |
| 10-23 06:06 | 80m | +12 / - | DK5OPA | - / -3 | 2 | ✓ Closing fragment |
| 10-23 06:04 | 80m | +13 / +9 | S50XX | +6 / -6 | 5 | ✓ Full exchange observed |
| 10-23 06:03 | 80m | +16 / - | DO6ZMR | -8 / -1 | 5 | ✓ Full exchange observed |
| 10-23 06:00 | 80m | +17 / - | SM7HZK | - / -3 | 2 | ✓ Closing fragment |
| 10-23 06:00 | 80m | +13 / - | HB9CEX | +5 / -11 | 7 | ✓ Full exchange observed |
| 10-22 20:07 | 160m | -3 / -10 | UA1AEL | +6 / -10 | 5 | ✓ Full exchange observed |
| 10-22 20:07 | 160m | +3 / -9 | R5AV | +7 / -11 | 4 | ✓ Full exchange observed |
| 10-22 19:45 | 80m | +19 / - | LA4NM | +6 / -9 | 5 | ✓ Full exchange observed |
| 10-22 19:43 | 80m | +27 / -9 | DK1GP | -8 / - | 4 | ✓ Closing observed |
| 10-22 19:42 | 80m | - / - | EB5R | -10 / - | 3 | Partial capture |
| 10-22 19:41 | 80m | +22 / +10 | OK1AWC | +4 / -4 | 5 | ✓ Full exchange observed |
| 10-22 19:38 | 80m | +22 / -5 | RA1QX | -13 / -13 | 6 | ✓ Full exchange observed |
| 10-22 19:37 | 80m | +20 / - | 2E0FHM | - / -10 | 2 | ✓ Closing fragment |
| 10-22 19:36 | 80m | +20 / +3 | OZ1BM | 0 / -1 | 4 | ✓ Full exchange observed |
| 10-22 19:33 | 80m | +18 / - | DL3IAE | - / - | 3 | Partial capture |
| 10-22 16:14 | 80m | +8 / -6 | R7DX | -1 / -4 | 6 | ✓ Full exchange observed |
| 10-22 16:12 | 80m | +6 / - | UN7LAN | - / -12 | 4 | ✓ Closing fragment |
| 10-22 16:09 | 80m | +6 / - | OD5ZZ | -13 / -21 | 5 | ✓ Closing observed |
| 10-22 16:08 | 80m | +10 / - | UN7EAN | - / -19 | 2 | ✓ Closing fragment |
| 10-21 13:31 | 10m | - / - | CT2GQA | +3 / - | 5 | Partial capture |
| 10-21 08:49 | 40m | -2 / - | ON3DWG | - / -14 | 3 | ✓ Closing fragment |
| 10-20 08:54 | 40m | -9 / - | OX3AH | - / -18 | 5 | ✓ Closing fragment |
| 10-20 08:52 | 40m | -9 / - | DJ2TH | - / - | 2 | Partial capture |
| 10-20 08:15 | 40m | -6 / - | NE2E | - / -17 | 4 | ✓ Closing fragment |
| 10-20 08:09 | 40m | +1 / - | OH6GEP | - / -11 | 6 | ✓ Closing fragment |
| 10-20 08:07 | 40m | 0 / -7 | DK6PW | -6 / -7 | 7 | ✓ Full exchange observed |
| 10-20 07:59 | 40m | +2 / - | DF0TZ | - / - | 7 | Partial capture |
| 10-20 07:58 | 40m | 0 / - | DB7HT | - / -14 | 3 | ✓ Closing fragment |
| 10-19 08:03 | 40m | +7 / - | EA4IFO | - / -10 | 2 | ✓ Closing fragment |
| 10-19 08:02 | 40m | +4 / - | F5TGY | - / -16 | 2 | Partial capture |
| 10-19 07:59 | 40m | +2 / - | HB9ITZ/P | - / 0 | 2 | ✓ Closing fragment |
| 10-19 07:54 | 40m | -3 / - | ZL2CC | - / - | 4 | Partial capture |
| 10-18 20:14 | 80m | +23 / - | R4FDD | -18 / -5 | 5 | ✓ Full exchange observed |
| 10-18 20:11 | 80m | +23 / +9 | DO9POL | -23 / -7 | 5 | ✓ Full exchange observed |
| 10-18 20:09 | 80m | +26 / -18 | R2BQM | -19 / -19 | 4 | Partial capture |
| 10-18 20:07 | 80m | +21 / -16 | JH1BBT | -12 / -15 | 6 | ✓ Full exchange observed |
| 10-18 20:07 | 80m | +24 / +2 | OE6TNO | +3 / - | 4 | ✓ Closing observed |
| 10-18 20:04 | 80m | - / - | UW5KW | +13 / - | 2 | Partial capture |
| 10-18 20:01 | 80m | +21 / -14 | JA9PPC | -8 / -12 | 9 | ✓ Full exchange observed |
| 10-18 20:01 | 80m | +15 / - | EA3HMM | -14 / -11 | 4 | Partial capture |
| 10-18 20:00 | 80m | +20 / - | DL6EBC | - / -6 | 2 | ✓ Closing fragment |
| 10-18 19:59 | 80m | +21 / - | DO2RDT | - / -13 | 3 | ✓ Closing fragment |
| 10-18 19:57 | 80m | +19 / +3 | DH4RK | -19 / -8 | 6 | ✓ Full exchange observed |
| 10-18 19:54 | 80m | - / - | IZ3GNG | +2 / - | 2 | Partial capture |
| 10-18 19:54 | 80m | +11 / - | DM3ER | +3 / -8 | 11 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 060515 +6 377 DM5KM S50XX R+09 060530 +13 376 S50XX DM5KM RR73 060545 +5 377 DM5KM S50XX 73 060600 +15 377 DK5OPA DM5KM -03 (x2) 193945 +17 2566 RA9SBN DM5KM JO43 (x2) 194030 -9 2567 DM5KM RA9SBN -08 194045 +19 2566 RA9SBN DM5KM R-21 194100 -9 2566 DM5KM RA9SBN RR73 194115 +17 2566 RA9SBN DM5KM 73 194345 +18 2566 IZ7LDC DM5KM JO43 (x4)
UTC dB Audio Message 065630 +9 412 DF7NO DM5KM JO43 065930 +7 654 DK6WS DM5KM JO43 065945 -9 1334 DM5KM DK6WS -05 070000 +7 654 DK6WS DM5KM R-15 070015 -10 1333 DM5KM DK6WS RR73 070030 +2 654 DK6WS DM5KM 73 070045 +9 654 DK6WH DM5KM JO43 070100 -7 1627 DM5KM DK6WH -07 070115 +8 654 DK6WH DM5KM JO43 (x2) 070200 -5 1627 DM5KM DK6WH -07 070215 +8 655 DK6WH DM5KM JO43 070230 -6 1627 DM5KM DK6WH -07 (x3)
UTC dB Audio Message 200700 +0 2460 CQ DM5KM JO43 200715 +7 2460 DM5KM R5AV -09 200730 +2 2460 R5AV DM5KM R-11 200745 +9 1121 DM5KM UA1AEL -10 200745 +7 2460 DM5KM R5AV RR73 200800 +4 2460 R5AV DM5KM 73 200815 +4 1120 DM5KM UA1AEL -09 200830 -2 2460 UA1AEL DM5KM R-10 200845 +5 1120 DM5KM UA1AEL RR73 200900 -4 2460 UA1AEL DM5KM 73 200930 -3 2460 CQ DM5KM JO43 (x4) 201200 +10 1452 DM5KM RJ3DC KO95
UTC dB Audio Message 074200 -15 2324 DM5KM F4AYI JN08 074700 -18 1805 DM5KM UA3ZQN KO90 114415 +7 2840 DM5KM F1PBZ -16 (x4) 115315 -8 667 DM5KM EA7Z IM67 (x4) 133145 +10 2566 DM5KM CT2GQA IM58 (x5)
UTC dB Audio Message 180000 -7 2174 ER1KW DM5KM -17 185230 -11 1191 DM5KM DL1IP R-13 185245 -12 1192 DL1IP DM5KM RR73 185300 -12 1191 DM5KM DL1IP 73 194115 -9 1269 DM5KM DL7UKM JO62 (x6) 152400 -10 1921 GM8FXD DM5KM JO43 (x5)
UTC dB Audio Message 123745 +7 280 HH2JR DM5KM -19 (x2) 124215 +1 1053 W4DXR DM5KM -18 (x3) 124445 -9 1570 HH2JR DM5KM -19 (x3) 124615 +3 1570 KC5OCH DM5KM R-17 (x4) 125130 +5 669 R9FFX DM5KM JO43 (x3)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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