DM5CF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DM5CF, decoded by SO8OO in southeastern Poland. 770 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-07.
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 770 FT8 messages attributed to DM5CF as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 60 m (24%) and 40 m (15%). Most decodes (55%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-10-07 05:08 UTC
Observed FT8 message patterns
- Attributed sample
- 770 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -14 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 201, strong (≥ -8 dB) 522.
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 DM5CF 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 DM5CF
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
- JO60 · 309 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 628 km (approx.)
- Last such locator decoded
- 2026-10-07 05:08 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 | DM5CF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 05:18 | 40m | - / -12 | YO3KWJ | +2 / - | 2 | Partial capture |
| 10-07 05:13 | 40m | - / -9 | GJ0KYZ | -13 / - | 3 | ✓ Closing fragment |
| 10-07 05:05 | 80m | +14 / +9 | DO7TTR | -2 / +4 | 4 | ✓ Full exchange observed |
| 10-07 05:03 | 80m | +4 / - | ON8LX | - / +2 | 3 | ✓ Closing fragment |
| 10-07 05:02 | 80m | +2 / - | DO9YU | - / - | 2 | Partial capture |
| 10-07 05:00 | 80m | +5 / - | IU3WIX | - / -24 | 3 | ✓ Closing fragment |
| 10-07 04:58 | 80m | +2 / - | RD1A/P | - / +5 | 2 | Partial capture |
| 10-07 04:21 | 80m | +6 / - | OH1IM | -11 / -1 | 4 | ✓ Closing observed |
| 10-07 04:06 | 40m | - / - | UB3DQR | -6 / - | 3 | Partial capture |
| 10-07 03:58 | 160m | - / - | HF5A | +7 / - | 3 | Partial capture |
| 10-07 03:56 | 160m | 0 / -15 | 9A5E | +7 / - | 3 | Partial capture |
| 10-07 03:53 | 80m | +6 / -4 | DO4ATK | +1 / -18 | 5 | ✓ Full exchange observed |
| 10-07 03:48 | 80m | +3 / -2 | MI0OBC | -6 / -5 | 5 | ✓ Full exchange observed |
| 10-07 03:44 | 80m | +1 / -11 | HF1Z | -1 / -5 | 6 | ✓ Full exchange observed |
| 10-07 03:43 | 80m | +3 / -13 | YO4CVV | -13 / -8 | 6 | ✓ Full exchange observed |
| 10-07 03:33 | 80m | -1 / - | OH8D | -8 / +1 | 4 | ✓ Closing observed |
| 10-07 03:32 | 80m | -2 / -15 | RC6OU | +4 / +2 | 7 | ✓ Full exchange observed |
| 10-07 03:30 | 80m | 0 / -3 | UT2AU | +1 / -1 | 6 | ✓ Full exchange observed |
| 10-07 03:29 | 80m | -1 / - | OH6FSO | - / -18 | 3 | ✓ Closing fragment |
| 10-07 03:25 | 80m | -10 / - | IN3WZS | - / - | 2 | Partial capture |
| 10-07 03:23 | 80m | -2 / - | I1WQR | - / - | 2 | Partial capture |
| 10-06 18:45 | 60m | -2 / - | HB9DWR | - / -13 | 3 | ✓ Closing fragment |
| 10-06 18:40 | 80m | +4 / -14 | IW5DNZ | +8 / +3 | 4 | ✓ Full exchange observed |
| 10-06 18:36 | 160m | -16 / 0 | DG1VT | -3 / - | 14 | Partial capture |
| 10-06 18:34 | 160m | -14 / -3 | OM7AG | +8 / -13 | 4 | ✓ Full exchange observed |
| 10-06 18:30 | 160m | - / -5 | DL7ULA | -9 / - | 3 | Partial capture |
| 10-06 18:24 | 80m | +3 / -7 | R2FC | +6 / -1 | 5 | ✓ Full exchange observed |
| 10-06 18:22 | 80m | +4 / -14 | DO6MFD | +2 / -2 | 4 | ✓ Full exchange observed |
| 10-06 18:20 | 80m | +9 / - | HB3XCE | - / -8 | 3 | ✓ Closing fragment |
| 10-06 18:14 | 80m | +4 / -7 | R2AL | +10 / +7 | 6 | ✓ Full exchange observed |
| 10-06 18:13 | 80m | 0 / -5 | DO5HOK | -1 / -3 | 4 | ✓ Full exchange observed |
| 10-06 18:12 | 80m | +3 / +3 | DO9SAM | +4 / - | 6 | ✓ Full exchange observed |
| 10-06 18:10 | 80m | 0 / - | DL7UKM | - / - | 2 | Partial capture |
| 10-06 18:05 | 60m | -8 / -6 | YO2MAX | +6 / - | 3 | ✓ Closing observed |
| 10-06 18:04 | 60m | -7 / -8 | GX0ERG | -14 / -18 | 5 | ✓ Full exchange observed |
| 10-06 18:02 | 60m | -10 / 0 | OT4A | +7 / +7 | 5 | ✓ Full exchange observed |
| 10-06 17:58 | 60m | -8 / -5 | DL9DXL | -13 / -15 | 7 | ✓ Full exchange observed |
| 10-06 17:56 | 60m | -9 / +3 | IK3VUT | +10 / +5 | 5 | ✓ Full exchange observed |
| 10-06 17:55 | 60m | -10 / +6 | ON7VZ | +3 / 0 | 4 | ✓ Full exchange observed |
| 10-06 06:30 | 80m | +4 / - | DK6WH | -8 / +8 | 4 | ✓ Closing observed |
| 10-06 06:29 | 80m | +7 / +1 | DO7RMS | -12 / +2 | 5 | ✓ Full exchange observed |
| 10-06 06:27 | 80m | +10 / -14 | HA8UM | -4 / -12 | 5 | ✓ Full exchange observed |
| 10-06 06:21 | 60m | +1 / - | G0AZH | - / -10 | 5 | Partial capture |
| 10-06 06:18 | 60m | -6 / - | EI7IN | - / - | 2 | Partial capture |
| 10-06 05:05 | 80m | +6 / -19 | IW4ECF | +3 / -1 | 4 | ✓ Full exchange observed |
| 10-06 05:04 | 80m | -3 / - | C31KC | - / - | 2 | Partial capture |
| 10-06 04:57 | 80m | +14 / - | HB9CEV | - / -8 | 2 | Partial capture |
| 10-06 04:55 | 80m | +3 / - | HA8ZG | -2 / -4 | 4 | ✓ Closing observed |
| 10-06 04:53 | 80m | - / - | HA9OA | +9 / - | 2 | Partial capture |
| 10-06 04:53 | 80m | +5 / -6 | OZ1HYM | -12 / -6 | 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 040615 -16 1714 DM5CF EA5ISA -15 (x2) 063230 -19 2071 IS0AAS DM5CF JO60 043645 -9 1069 DM5CF IQ2AAH +01 043845 -7 892 DM5CF EA4EQ RRR 061245 -17 1244 DM5CF F4DIA +05 040545 -14 1687 DM5CF TA2VUZ RR73 040615 -10 1018 DM5CF UB3DQR KO85 (x3) 051330 -11 1272 DM5CF GJ0KYZ -09 (x3) 051830 +1 1387 DM5CF YO3KWJ -12 (x2)
UTC dB Audio Message 180400 -9 1662 GX0ERG DM5CF JO60 180415 -14 627 DM5CF GX0ERG -08 180430 -7 1662 GX0ERG DM5CF R-18 180445 -13 627 DM5CF GX0ERG RR73 180500 -6 1662 GX0ERG DM5CF 73 180545 +4 814 DM5CF YO2MAX -06 (x2) 180630 -8 1662 YO2MAX DM5CF 73 180700 -5 1662 LA9UDA DM5CF JO60 184430 -13 1435 DF3IS DM5CF JO60 184530 -2 1435 HB9DWR DM5CF JO60 (x3) 050745 +9 2495 HI3QMT DM5CF JO60 050815 +11 2495 G8CVS DM5CF JO60
UTC dB Audio Message 045715 +6 1833 R8KAW/P DM5CF JO60 045845 +3 1810 RD1A/P DM5CF JO60 (x2) 050015 +2 1810 IU3WIX DM5CF JO60 (x3) 050230 +1 2466 DO9YU DM5CF JO60 (x2) 050330 +2 2466 ON8LX DM5CF JO60 (x3) 050515 +14 2466 DO7TTR DM5CF JO60 050530 -2 2271 DM5CF DO7TTR +09 050545 +15 2466 DO7TTR DM5CF R+04 (x2)
UTC dB Audio Message 184030 -4 1121 DM5CF DG1VT R+00 (x9) 035645 -1 2075 9A5E DM5CF JO60 (x2) 035730 +7 2133 DM5CF 9A5E -15 035830 +8 2472 DM5CF HF5A JO92 (x3)
UTC dB Audio Message 093900 -21 1356 DM5CF SV2TCC -09
UTC dB Audio Message 092030 -3 1504 F8KIC/P DM5CF JO60 (x3) 092200 -6 1504 OS5U DM5CF JO60 (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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