DF3MC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF3MC, decoded by SO8OO in southeastern Poland. 1,629 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-05.
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 1,629 FT8 messages attributed to DF3MC as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 20 m (45%) and 80 m (6%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-08-05 04:56 UTC
Observed FT8 message patterns
- Attributed sample
- 1,629 messages
- Active dates
- 22 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -18 to +0.1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 324, moderate (-15 to -9 dB) 678, strong (≥ -8 dB) 627.
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 DF3MC 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 DF3MC
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
- JN57 · 1,312 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 836 km (approx.)
- Last such locator decoded
- 2026-08-05 04:56 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 | DF3MC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-05 04:53 | 40m | -10 / - | T48FCR | - / - | 7 | Partial capture |
| 08-05 04:46 | 40m | -2 / - | KC2MBV | - / - | 9 | Partial capture |
| 08-05 04:43 | 40m | -8 / - | W8VOL | - / - | 5 | ✓ Closing fragment |
| 08-05 04:40 | 40m | -7 / - | 9Z4A | - / - | 2 | Partial capture |
| 08-05 04:37 | 40m | -9 / - | W8VOL | - / - | 5 | Partial capture |
| 08-05 04:33 | 40m | -7 / - | W4GGJ | - / -17 | 4 | ✓ Closing fragment |
| 08-05 04:23 | 40m | -8 / - | N8BEK | - / - | 6 | Partial capture |
| 08-05 04:21 | 40m | -7 / - | US2YW | - / - | 2 | ✓ Closing fragment |
| 08-05 04:19 | 40m | -3 / - | HI8UD | - / - | 3 | ✓ Closing fragment |
| 08-05 04:17 | 40m | -1 / - | N2CG | - / - | 2 | Partial capture |
| 08-05 04:14 | 40m | -10 / - | N8BEK | - / - | 3 | Partial capture |
| 08-05 04:06 | 40m | -8 / - | D2UY | - / - | 11 | Partial capture |
| 08-05 04:00 | 40m | -5 / - | D2UY | - / - | 5 | Partial capture |
| 08-03 06:31 | 40m | -16 / - | K4YT | - / - | 2 | Partial capture |
| 08-03 06:12 | 40m | -15 / - | K4CAE | - / - | 13 | Partial capture |
| 08-02 05:51 | 40m | -12 / - | HI8UD | - / - | 6 | Partial capture |
| 08-02 05:45 | 40m | -18 / - | LU7PBO | - / - | 7 | Partial capture |
| 08-02 05:39 | 40m | -15 / - | HI8UD | - / - | 3 | Partial capture |
| 08-02 05:32 | 40m | -11 / - | KB9ZM | - / - | 9 | Partial capture |
| 08-02 05:29 | 40m | -11 / - | HI8UD | - / - | 3 | Partial capture |
| 08-02 05:27 | 40m | -16 / - | WB8SCG | - / - | 2 | Partial capture |
| 08-02 05:22 | 40m | -8 / - | YY4GPM | - / - | 6 | Partial capture |
| 08-02 05:18 | 40m | -11 / - | HI8UD | - / - | 4 | Partial capture |
| 08-02 05:08 | 40m | -13 / - | YV5JAU | - / - | 10 | Partial capture |
| 08-02 05:02 | 40m | -15 / - | ZY7F | - / - | 9 | Partial capture |
| 08-02 05:00 | 40m | -6 / - | HI8UD | - / - | 3 | Partial capture |
| 08-02 04:57 | 40m | -13 / - | KC9BK | - / - | 6 | Partial capture |
| 08-02 04:45 | 40m | -7 / - | CO8LZM | - / -22 | 7 | ✓ Closing fragment |
| 08-02 04:31 | 40m | -7 / - | PY8WW | - / - | 10 | Partial capture |
| 08-02 04:26 | 40m | -13 / - | XE1RBV | - / - | 5 | Partial capture |
| 08-02 04:23 | 40m | -9 / - | KK4CDK | - / +1 | 5 | Partial capture |
| 08-02 04:17 | 40m | -9 / - | K3ZIB | - / -17 | 9 | Partial capture |
| 08-02 04:10 | 40m | -5 / - | KO4O | - / - | 10 | Partial capture |
| 08-02 04:07 | 40m | -5 / - | HI8UD | - / - | 6 | Partial capture |
| 08-02 04:02 | 40m | -10 / - | KC1EPL | - / -17 | 5 | ✓ Closing fragment |
| 08-02 03:56 | 40m | -7 / - | W9MDM | - / - | 9 | Partial capture |
| 08-02 03:53 | 40m | -8 / - | PY8WW | - / - | 2 | Partial capture |
| 08-02 03:48 | 40m | -3 / - | W5DAH | - / - | 3 | Partial capture |
| 08-02 03:42 | 40m | -8 / - | OA4ENG | - / - | 10 | Partial capture |
| 08-02 03:34 | 40m | -7 / - | T42FCR | - / - | 9 | Partial capture |
| 08-02 03:30 | 40m | -7 / - | HK3YL | - / - | 7 | Partial capture |
| 08-02 03:29 | 40m | -4 / - | KA9FOX | - / -2 | 2 | Partial capture |
| 08-02 03:18 | 40m | -8 / - | PW8GTB | - / - | 13 | Partial capture |
| 08-02 03:14 | 40m | -8 / - | PW8GTB | - / - | 2 | Partial capture |
| 07-31 06:10 | 40m | -14 / - | M0LEX | - / -24 | 2 | Partial capture |
| 07-31 04:40 | 40m | -8 / - | HI8UD | - / - | 7 | Partial capture |
| 07-31 04:35 | 40m | -4 / - | HI8UD | - / - | 3 | Partial capture |
| 07-31 04:27 | 40m | -9 / - | CN2DX | - / - | 3 | ✓ Closing fragment |
| 07-31 04:23 | 40m | -9 / - | ND9M | - / - | 7 | Partial capture |
| 07-31 04:12 | 40m | -9 / - | 9Y4C | - / -24 | 7 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 044700 -5 701 KC2MBV DF3MC JN57 (x8) 045315 -11 1621 T48FCR DF3MC JN57 (x7)
UTC dB Audio Message 081045 -3 1094 TA3NK DF3MC JN57 (x2) 081215 -4 1145 VK2GQR DF3MC JN57 (x2) 082115 -10 1089 UN0NZZ DF3MC JN57 (x2) 082400 -7 1039 YV1HGS DF3MC JN57 (x9)
UTC dB Audio Message 115600 -18 2388 DF3MC GB2WWA -06 121730 +3 645 DF3MC GJ0KYZ -11 (x2) 121445 -18 1793 DF3MC RN6MA -15
UTC dB Audio Message 033815 +9 815 DF3MC SN93LOT +11 033830 +1 2258 <...> DF3MC R-03 033930 +7 2258 YO3OBB DF3MC JN57 033945 -2 1449 DF3MC YO3OBB -10 (x2) 034030 +1 2258 YO3OBB DF3MC 73 034130 -3 2258 IQ4JO DF3MC JN57 034145 +11 2563 DF3MC IQ4JO +03 034200 +7 2258 IQ4JO DF3MC R+24 034215 +7 2563 DF3MC IQ4JO RR73 034230 +2 2258 IQ4JO DF3MC 73 034300 +1 2258 IZ5FSO DF3MC JN57 (x4)
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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